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Hindustan Platinum Provides Precious Metal Refiners in India

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Hindustan Platinum Provides Precious Metal Refiners in India

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Hindustan Platinum is a six-decade-old precious metal refiner with operations on five continents. One can know more about the product on the website.

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Precious Metal Manufacturer & Refining Company in India | Hindustan Platinum

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Hindustan Platinum a leading manufacturer and refiner of precious metal products creating an indelible mark for over six decades. Click the website to know more.

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Hindustan Platinum Provides Precious Metal Management services

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Hindustan Platinum Provides Precious Metal Management services

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Hindustan Platinum provides precious metal management services using cutting-edge technologies. One can learn more about the management process by visiting the website.

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With over six decades of expertise, Hindustan Platinum is a trusted leader in precious metals products and services, offering a comprehensive range of solutions across the entire lifecycle of precious metals.

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Hindustan Platinum are Engineered Products Manufacturers in India.

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Hindustan Platinum are Engineered Products Manufacturers in India.

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Hindustan Platinum is a designer and manufacturer of engineered products for various industries. More Details about the product are available on the website.

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From fine wire and labware to products for the glass industry, our range of engineered products are marked by quality, durability, and high levels of customization.

Hindustan Platinum has been a manufacturer of premium industrial products that are defined by sophistication and exceptional quality. Our engineered products and services are produced to surpass customer expectations.

We serve a plethora of industries that include Cement, Analytical, Pharmaceuticals, Institutes, Research and Development, Food, Rubber, Jewellery, Textile, Watch, Instrumentation, Foundries, Electroplating, Glass Fibre and Glass Wool and Glass and optical Glass.

Industries We serve

Research & Analytical laboratories

Hindustan Platinum is a leading supplier of extensive range of Platinum labware globally. We fabricate Platinum alloy crucibles and dishes, that play a vital role in R&D laboratories. Our proficiency in the production process allows us to customize our products, according to the needs of our customers.

Our indigenous production processes allow us to customise parameters like thickness, reinforced rim, pouring lip, varying sizes and shapes such as cylindrical or conical and with different types of lids as per individual specifications in pure Platinum, Platinum/Rhodium or Platinum/Gold.

The crucibles' shape size ranges from 5 cc to 250 cc for "AZ" and 8 cc to 200 cc for "BZ".

Crucibles in these series have nominal capacities ranging from 5cc to 250cc. These crucibles are designed with extra thick base to withstand heavy wear. Unless otherwise specified crucibles are always supplied having plain rim and with lid. The purity of Platinum used for manufacture of these crucibles is at least 99.95%.

Other sizes available on request.

Crucibles in these series have nominal capacities ranging from 8cc to 200cc. These crucibles are designed with extra thick base to withstand heavy wear. Unless otherwise specified crucibles are always supplied having plain rim and with lid. The purity of Platinum used for manufacture of these crucibles is at least 99.95%.

Other sizes available on request.

We design standardized form dishes with a round thick base for heavy wear, with a pouring lip and without lid that ranges between 25 cc to 700 cc. Also, manufacturing shallow dishes to specification along with lids of watch-glass type or crucible type is our expertise. Shallow dishes for iron and steel, water and sugar analysis can be manufactured to specification along with Lids of watch-glass type or crucible type with options of reinforced rim and/or heavy bottom.

Platinum, Platinum/Rhodium and Platinum/Gold alloy Crucible and mould XRF Analysis:

Platinum and its alloy possess the following properties to use for laboratory apparatus:

Higher strength

High melting point

Ductility

Corrosion resistance

And therefore, Platinum and its alloy are widely used as a analytical laboratory apparatus. The properties of Platinum and its alloys are summarized as under:

This Platinum group metal alloy melting point as high as 1850 degree Celsius. This alloy has greater hardness and higher strength

This alloy universally accepted for Crucibles and casting moulds for spectro-graphics analysis by x-ray fluorescence (XRF). This alloy has property of higher temperature strength than pure Platinum and has "non-wetting" property for easy removal of the sample after fusion and allows many reproducible assays.

DIFFERENT SHAPE OF XRF CRUCIBLE

DIFFERENT SHAPE OF XRF CASTING DISH

Consisting attributes of being economical, speedy and accurate, we play a pivotal role in manufacturing Platinum electrodes of required specifications and narrated dimensions. At Hindustan Platinum, it's all about delivering better options. We engineer Fischer Electrodes and Platinum Electrodes.

Fischer electrodes are commonly used in laboratories for electrochemical analysis. The stems of cathode and anode are supplied in round as well as square wire and can be straight or cranked, with or without rings. The helical anode, made of round wire, is used when no anodic deposition or less than 0.2% lead as lead peroxide is required.

No.

Height overall mm

Height of Cylinder mm

Diameter of Cylinder mm

Approximate Weights grams

Approximate surface area cm²

Similar to the heavy Fischer type, Platinum electrodes have a cathode with a straight stem and no rings over it. These electrodes can be used for both stirred and unstirred solutions. When no anodic deposition is required, we use a helix made of round wire which is substantially cheaper than that of wire gauze anode.

No.

Height overall mm

Height of Cylinder mm

Diameter of Cylinder mm

Approximate Weights grams

Approximate surface area cm²

These cathodes can be employed with round wire helical or paddle type electrode and used for both stirred and unstirred solutions.

No.

Height overall mm

Height of Cylinder mm

Diameter of Cylinder mm

Approximate Weights grams

Approximate surface area cm²

Paddle dimensions mm x mm

Platinum labware allied products

Hindustan Platinum believes in furthering the ambition and continuous innovation. Hence, driven by superior quality, our manufacturing products include spatulas, spoons, combustion boats, filter cones, tipped forceps, triangles, wire gauze, wires, foils, micro-chemical apparatus such as micro dishes and micro boats. Amongst other parameters, we also have a stronghold on creating temperature sensing products, Thermocouple wires, Platinum and Rhodium Wires.

Our standard Combustion Boats are available with or without a handle in the following specifications. Sizes can be customized to suit the client's requirements.

Micro-Combustion Boats can also be manufactured against special orders.

Our standard Platinum Tipped Stainless Steel Tongs are available in the following specifications. Other sizes can also be manufactured as per the clients' specifications.

Our Platinum triangles with twisted ends help avoid contact with other metals while heating. The following specifications are available with us.

No.

Crucible Capacity cc

Length of side mm

Approximate weight in grams

Platinum foils are made to superlative standards of high precision and quality. Foils completely free of burrs and proven indispensable to operation are available in the exact specifications required by our clients.

Micro Chemical Apparatus Allied

In conditions where traditional methods cannot be used, Microchemistry allows a technique for performing chemical experiments on trace quantities. We manufacture Micro chemical apparatus considering the specifications and properties for which it is to be used. Besides our standard specifications given below, the apparatus can be custom made.

No

Capacity cc

Top Diameter mm

Height mm

Approximate weight in Grams

Dish Crucible with Type

Plainrim

Reinforced Lid

No

Capacity cc

Height mm

width mm

Length mm

Approximate weight in grams

With handle

Without handle

Other Micro Chemical Apparatus

Micro Crucibles

Micro Spatulas

Micro Triangles

Spoons

Download Labware Catalogue

Temperature Sensing Products - Wires

We manufacture platinum wires of a very high standard, uniform composition and free from chemical or physical defects.

We have available wire diameter ranges from 0.025 mm to 5.00 mm

Platinum and its alloys are reliable sensing elements in high temperature measurement. We make temperature sensing products that give better process control, consistent product and improved energy conservation. This includes thermocouple wires, resistance thermometers, throwaway tips and alpha wires. We also supply precious metal sheaths, wherever necessary.

Platinum and Rhodium Wires

Platinum and Platinum/Rhodium thermocouple wires are widely used for optimum accuracy and stability for measuring temperatures ranging from 1000°C to 1800°C. These are produced from high purity metals to maintain accurate e.m.f. values within tolerances of international standards.

Material

Pt

Pt 6% Rh

Pt 10% Rh

Pt 13% Rh

Pt 30% Rh

Thermal conductivity at 20 C

cal s/cm
C

0.166

0.085

0.072

0.065

0.055

Generally negative wires are of pure Platinum and positive wires are of Platinum/Rhodium10% or Platinum/Rhodium13% ranging in diameter from 0.20 mm to 1.0 mm as ex-stock basis. These stress relieved wires are manufactured from highly pure virgin metals with only spectrographic traces of other elements.

Specification and Calibration

Platinum and Platinum/Rhodium Wires are made to ISI specification IS: 6683:1973 and as amended thereafter, they meet International Standards and are in accordance with the EMF/Temperature relationship based on the International Temperature Scale of 1990 (ITS 90).

Type

Combination

Working Temperature Range °C

-ve

+ve

Maximum

Continuously

S

Pt

Pt/10%Rh

1600

1300

R

Pt

Pt/13%Rh

1600

1300

B

Pt/6%Rh

Pt/30%Rh

1700

1500

Platinum and Platinum/Rhodium Wires for Throw-Away Tips

Platinum - Platinum/Rhodium throwaway tips of wire diameter below 0.1 mm. are now used for their economy, to measure high temperatures, particularly in Steel Plants. We make high temperature application wires for throw-away tips of wire diameter up to 0.025 mm. Great care is taken to maintain accuracy of the relation between the temperature and e.m.f, within the standard tolerance.

Diameters mm

Tolerance mm

0.025 - 0.05

± 0.001

0.05 to 0.09

± 0.001

0.10 to 0.25

± 0.005

0.30 to 0.40

± 0.005

0.45 to 1.00

± 0.010

1.50 to 2.00

± 0.020

Pure Platinum Wire for RTD

Resistance thermometers, also called resistance temperature detectors (RTDs), are sensors used to measure temperature. Many RTD elements consist of a length of fine wire wrapped around a ceramic or glass core but other constructions are also used. The RTD wire is a pure material, typically made of Platinum, Nickel, or Copper.

Platinum resistance thermometers (PRTs) offer excellent accuracy over a wide temperature range (from -200°C to +850°C). The most common type (PT100) has a resistance of 100 ohms at 0°C and 138.4 ohms at 100°C. There are also PT1000 sensors that have a resistance of 1000 ohms at 0°C.

Platinum and Platinum/Rhodium wires are employed for winding the furnaces for the temperature above 1000°C because of their high melting point and resistance to reaction with oxygen in air. Although these resistors cost more compared to those made of base metals, their longer life and higher resale value make them far more economical for furnace winding. These wires can be reworked into new ones at nominal charges when scrapped.

Properties of Platinum Furnace Winding Wires

Details

Platinum

Platinum / 10% Rhodium Wire

Platinum / 20% Rhodium Wire

Melting Point

1773

1830

1860

Specific Gravity

21.4

20

18.7

Resistance: Ohm/mil ft.

65

115

125

PGM allied products

Hindustan Platinum, being renowned fabricators of Platinum group metal alloy components used by the glass industry, we lend our services to the container glass industry, the float glass industry, the tube industry, the light bulb manufacturers and tableware manufacturers. Also, we offer standard products such as drain tubes, thimbles, bubblers, level probes, orifice liners and rings. Our expertise also lies in custom fabrications for the industry in various alloys.

With the aid of our technology partners, we manufacturer clad as well as unclad stirrers. Also, we are frontrunners in manufacturing both evacuated and non-evacuated paddle stirrers, stirrer bars, homogenizing stirrers and gobbing stirrers. Furthermore, we inch closer to perfection with our state-of-the-art leak detection equipment that takes us closer to zero-defect products, when it comes to evacuated and clad stirrers.

Our Platinum components find application in manufacture of TV Shells & LCDs, Bottles & Tubes, Tableware, and Optical Glass & Glass Fiber. Our Product range includes:

Stirrers

Bowl wells

Thimbles

Drain Tubes

Liners

Laser welded Bushings

Sheaths

Bubblers

Level Probes

Orifice Rings

Hindustan Platinum being a global force, is a pioneer in laser technology in India and supplies bushings to the glass fiber industry. We continuously strive to upgrade our existing technology with world leaders to manufacture bushings, thus enabling us to produce superlative quality bushings that are supreme.

With the perfect combination of human skills and latest technology, we deliver international quality of bushings at a reasonable price. Also, our in-house refinery ensures highest purity materials are churned out.

Attending to make-up metals, our R&D department is engaged in developing reliable technology to recover precious metals that migrate to the refractory during usage.

For the Glass Fibre Industry, we make various Platinum/Rhodium alloy Bushing. These are:

Laser welded Bushings

Glass Flow Bushings

Drain Bushing

Textile Industryspinneret

Since 1973, Hindustan Platinum has played a crucial role in the production of precious metal spinnerets and has served the man-made fibre industry for over a quarter of a century. In the current scenario, Hindustan Platinum remains the country's exclusive maker of spinnerets and also repairs and refabricates old and worn out spinnerets, regardless of the original maker.

The year 2004 was a revolutionary one as Hindustan Platinum acquired technical know-how and imported special purpose machines from Italy to upgrade our process to manufacture precious metal spinnerets.

Our sophisticated process of production of spinnerets has consistently been driven to meet the challenges created by an increasingly innovative industry to manufacture products with outstanding attributes. Hindustan Platinum has a vast knowledge and expertise in spinneret technology. It gives us the flexibility to work on customized designs, based on customers' specific needs. When attending to a precious metal spinnerets, be it a standard design or a specific one, we ensure that the metal or alloy used has the following characteristics:

Extremely resistant to corrosion

Stable enough to continuously resist deformation

Recyclable

Hindustan Platinum manufacturers high precision spinnerets such as :

Precious Metal spinnerets for viscose staple fiber; filament, rayon and tyrecords year

Cluster holder fitted with precious metal spinnerets for viscose staple

Stainless Steel Cup Form & Ring spinnerets for acrylic fiber

Tantalum filter used for viscose staple and rayon filament

Download Spinneret Brochure

Platinum and PGM group metal alloy

We are authorized suppliers of Pt and Pt 950 alloy material in the form of granules, shots, sheet and wires etc for diverse jewellery industries. In addition to supply of fresh metal, we also undertake refining job of filing, setting and polishing dust and conversion the metal into Pt 950 alloy as well.
We are the most trusted partner and supplier to jewellery industry

PGI certified supplier to Platinum Jewellery Industry

Material supply in the form of Rod, Grain, Wire, Sheet etc

Parting Tray for Gold Assaying

Semi finished Platinum rings and chains

The range of product and alloys areas under:

Platinum, Palladium, Ruthenium, Iridium in Powder Form

Pt 950 (Pd) Pt 950 (Pd/Ru), Pt 950 (Cu/Co) Alloy in Granules Form

Pt 950 Sheet, Wire, Tube etc. and allied products

Pt 950 Chains, Pt. 950 Ring

Our quality systems are geared towards creating customer satisfaction and are ISO 9001 certified.

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Engineered Products & Services Manufacturer Company in India | Hindustan Platinum

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Engineered Products: Hindustan Platinum is a manufacturer of premium industrial products that are good in quality. Check out our engineered products and services, which are built to better buyer expectations.

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Hindustan Platinum provides Nitro Technologies Services in India

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Hindustan Platinum provides Nitro Technologies Services in India

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Nitro technology from Hindustan Platinum facilitates the creation of a wide range of goods across sectors. One can understand more about technology by visiting the website.

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Know about Nitro Technology Products & Services here at Hindustan Platinum

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Hindustan Platinum is a manufacturer of catalyst gauzes and customised getter systems. We majorly provide our services to the technical advisory, plant cleaning & more. Know more.

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Hindustan Platinum Provides Electrical Contacts Manufacturing Services

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Hindustan Platinum Provides Electrical Contacts Manufacturing Services

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Hindustan Platinum electrical contacts manufacturer produces electrical connectors in autos, elevators, and other industries. For more information can be found on the website.

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Powering ahead and forging relations through our contacts

Electrical Contacts are the most important components of any switching device. The life of a contact determines the life of the switching device. This depends on application, choice of material and manufacturing process, among many other factors.

There has been a growing demand over the last several years for high performance contacts manufactured while keeping costs and processes under control.

At Hindustan Platinum, we strive to manufacture contacts that will exceed our customer's performance expectations. Since 1961, our team of experts has acquired extensive experience in producing low and medium voltage switchgear contacts and has been helping customers choose the right material for their requirements.

Our comprehensive infrastructure includes an in - house precious metals refinery, state-of-the-art production facility and an experienced team of metallurgists & engineers. We assure our customers of value-added services and offer a complete end to end solution ranging from customised products to technical advisory services.

Our ERP system ensures enhanced control on business processes, such as production planning, manufacturing and thorough tracking and traceability from stores to warehouse through barcodes, leading to improved business performance.

Further, in a strategic move to strengthen our international footprint and to cater to the needs of the North and South American markets, we have acquired ABB's electrical contacts manufacturing plant in Humacao, Puerto Rico.

Switchgear / Control gear

Hindustan Platinum produces electrical contacts mainly for the low voltage and medium voltage industries, ranging from simple shapes to complex geometries. Driven by stringent quality checks, our products are VDA 6.3 compliant (German Automotive Standard). We understand that our customer's safety depends on our reliability, which is why we strive for continuous improvement and constant innovation.

Starting with the purest raw materials, we provide materials of the highest standards. Testament for this is that we supply our semi-finished products to other contact manufacturers around the world.

Brazing alloy selection depends upon application, brazing method, metals to be joined, working temperature etc.

Hindustan Platinum produces high quality silver-based brazing alloys. We supply a wide range of filler materials in the form of foils, rods, strips, wires etc. to Industries such as HVACR, Tooling and Electrical.

The amount of Silver in standard brazing alloys varies from 2% to 55%. We manufacture Cadmium free brazing alloys complying to RoHS requirement. Cadmium bearing alloys are also available, if required.

Silver Brazing Alloys are produced according to International Standards ISO 17672, however we also cater to customized specifications and sizes.

Silver-Graphite contacts are manufactured by powder metallurgy and are normally supplied with vertical graphite particle orientation or with random structure. For some applications, it can also be produced with parallel graphite particle orientation.

Silver-Graphite is normally used in circuit breakers, motor-protective circuit breakers, fault-current circuit breakers and power switches.

Because of the graphite properties, this material is known for having the best anti-welding properties among the contact materials. In addition to that, due to the high silver content, Silver-Graphite contacts have low contact resistance. The disadvantages of this contact material is the low arc erosion resistance, especially during break operations and the low formability.

Our Silver-Graphite contacts are available in the form of contact tips with a brazeable silver side or with brazing alloy layer. The typical properties of this material are listed in the table below:

Alloy

Graphite Content (%)

Conductivity (% IACS)

Density
(g/cm³)

Hardness
HV1

* This table shows typical material properties. The real contact properties will depend on the shape and production route.

If you have different requirements, HP has a team of materials engineers, specialized in the development of contact materials, that will study your necessities.

Silver-Cadmium Oxide (Ag/CdO)

Silver-Cadmium Oxide is probably the best and more flexible contact material ever discovered, because of its balanced properties. This contact material is recognized by:

Good arc-extinguishing properties

Low arc erosion

Low and stable contact resistance during the lifetime of the device

Low temperature rise

Excellent anti-welding properties

However, due to the Cd toxicity, its use is restricted in some areas like the European Union.

Silver-Cadmium Oxide can be produced by two routes, powder metallurgy (PM) and internal oxidation (IO), which bifurcate into several other different process methods. HP masters most of the process methods and the best choice will depend on the interaction between the contact material and the customer device. One of the most successful products from HP is the extremely ductile Ag/CdO 85/15 wire produced by internal oxidation that is used to manufacture bimetal contacts.

Typical applications of Ag/CdO are switches, relays, wiring devices, contactors, electrical showers.

Our Silver-Cadmium Oxide contacts are normally produced in the shape of wires, strips, rivets and contact tips and the typical properties of this material are listed in the table below:

Alloy

CdO Content (%)

Process

Conductivity (% IACS)

Density (g/cm³)

Hardness (HV10)

Tensile strength (MPa)

* This table shows typical material properties. The real contact properties will depend on the shape and production route.

If you have different requirements, HP has a team of materials engineers, specialized in the development of contact materials, that will study your necessities.

Pure Silver (min. 99.9% of Silver) has the highest thermal and electrical conductivities among all metals, is very resistant against oxidation and has excellent formability. However, its low mechanical strength, high erosion rate, high tendency of welding and high tendency of tarnishing in contact with sulphur limits its application.

Typical uses of Pure Silver are push-buttons, relays, appliance and control switches for very low currents.

For improving some properties of the Pure Silver, like mechanical strength and erosion resistance, other elements like Copper and Nickel are added forming Silver Alloys. However, the addition of elements in the pure silver worse the contact resistance, the anti-oxidation properties and the formability of the contact material.

When 0.15% of Nickel is added during the melting process, very fine and dispersed nickel particles are precipitate during the solidification, decreasing the grain size of the Ag grains, producing what is called Fine Grain Silver (Ag/Ni 99.85/0.15). The main advantages of Fine Grain Silver are the improved mechanical properties, if compared with pure silver, without a significant worsening of the best properties of the pure silver, which make Fine Grain Silver a better choice than Pure Silver in most applications.

Since Copper has a much better solubility in Silver than Nickel, adding Copper is a good alternative for increasing the mechanical properties of Pure Silver even more. The addition of Copper also improves the arc erosion resistance and anti-welding properties of the contacts, however the increase of copper content will have negative influence in other characteristics like contact resistance and resistance against oxidation.

Typical uses of Silver Alloys are switches, relays and wire devices up to 20A.

Our Pure Silver and Silver-Alloys contacts are normally produced in the shape of wires, strips, rivets and contact tips and the typical properties of these materials are listed in the table below:

Alloy

Cu or Ni Content (%)

Conductivity (% IACS)

Density (g/cm³)

Hardness (HV10)

Tensile strength (MPa)

* This table shows typical material properties. The real contact properties will depend on the shape and production route.

If you have different requirements, HP has a team of materials engineers, specialized in the development of contact materials, that will study your necessities.

Silver-Nickel is a very popular contact material and is used all around the world. As there is no significant solubility between the two elements, this material is produced by the powder metallurgy (PM) route. For Nickel contents up to 30%, the preferable PM route is extrusion of Ag/Ni into wires and strips and for Nickel content above 30%, the preferable PM route is Press-Sinter-Repress (PSR).

Silver-Nickel contacts have good mechanical strength, good welding resistance, low and almost constant contact resistance throughout the life of contact, high arc resistance, good arc moving and extinguishing properties. In addition to that, one of the major reasons of the popularity of this contact material is the fact that it can be directly welded onto copper carriers from wire, without the necessity of adding brazing alloy, bringing significant cost advantages for automation of welding lines. However, this advantage limits the application of Silver-Nickel materials to currents up to 100A, when not paired with other contact materials as Silver-Graphite.

Typical uses of Silver-Nickel contacts are relays, switches, wiring devices, thermostats, contactors circuit breakers, motor protective circuit breakers.

Our Silver-Nickel contacts are normally produced in the shape of wires, strips, rivets and contact tips and the typical properties of these materials are listed in the table below:

Alloy

Ni Content (%)

Process

Conductivity (% IACS)

Density (g/cm³)

Hardness (HV10)

Tensile strength (MPa)

* This table shows typical material properties. The real contact properties will depend on the shape and production route.

If you have different requirements, HP has a team of materials engineers, specialized in the development of contact materials, that will study your necessities.

Silver-Tin Oxide (Ag/SnO ₂)

Silver-Tin Oxide is a very popular contact material and is largely used for replacing Silver-Cadmium Oxide. In addition to not be a hazardous material, the main properties of Silver-Tin Oxide contacts are:

Good arc-extinguishing properties

Very low arc erosion

Low and stable contact resistance during the lifetime of the device

Low material transfer during DC load

Good temperature rise

Excellent anti-welding properties

Silver-Tin Oxide can be produced by two routes, powder metallurgy (PM) and internal oxidation (IO), which bifurcate into several other different process methods. In both cases, the use of dopants aids the electrical performance and formability of the materials. HP domains most of the process methods and the best choice will depend on the interaction between the contact material and the customer device.

Typical applications of Ag/SnO2 are switches, relays (including automotive relays), contactors.

Our Silver-Tin Oxide contacts are normally produced in the shape of wires, strips, rivets and contact tips and the typical properties of this material are listed in the table below:

Alloy

SnO₂ Content (%)

Process

Conductivity (% IACS)

Density (g/cm³)

Hardness (HV10)

* This table shows typical material properties. The real contact properties will depend on the shape and production route.

If you have different requirements, HP has a team of materials engineers, specialized in the development of contact materials, that will study your necessities.

Silver-Zinc Oxide (Ag/ZnO)

Silver-Zinc Oxide is another contact material used for replacing Silver-Cadmium Oxide in European Union, typically used in lower current switches, relays and contactors. In addition to not be a hazardous material, the main properties of Zinc Oxide contacts are:

Very low arc erosion

Low and stable contact resistance during the lifetime of the device

Excellent anti-welding properties

Our Silver-Zinc Oxide contacts can be produced in the shape of wires, strips, rivets and contact tips. The typical composition produced by HP is Ag/ZnO 91/9.

If you have different requirements, HP has a team of materials engineers, specialized in the development of contact materials, that will study your necessities.

Silver-Refractory Material (Ag/W, Ag/WC, Ag/Mo and Ag/WC/C)

Silver-Refractory Material family is mainly composed by Silver-Tungsten (Ag/W), Silver-Tungsten Carbide (Ag/WC) and Silver-Molybdenum (Ag/Mo) and is a special category of arcing contact materials for use in high fault current applications, like residential circuit breakers, industrial breakers and high current switchgears.

Ag/W materials are largely used in North America as a result of the high current level fault protection required by UL even for residential homes, while in Europe Ag/WC is the most common material of this family, normally paired with Ag/C.

These materials combine the excellent electrical and thermal conductivity of silver with the high arc resistance, high hardness and high thermal resistance of the refractory metals and its carbides, offering a composite material with the following properties:

Low contact welding

Low erosion, under arcing

Very high resistance against arc erosion, even under high currents

Poor arc moving properties

High hardness

Low, but acceptable contact resistance

The table below shows the difference between these contact materials.

These materials, in the shape of contact tips, can be produced by different PM routes and can be highly customized depending on the application of the customer and typical properties of some alloys are listed in the table below:

Alloy

W, Mo or WC Content (%)

Conductivity (% IACS)

Hardness (HV10)

* This table shows typical material properties. The real contact properties will depend on the shape and production route.

For some special applications that require lower temperature rise or lower contact welding, graphite can be added to the Ag/WC, forming Ag/WC/C. The disadvantage is a lower arc resistance.

If you have different requirements, HP has a team of materials engineers, specialized in the development of contact materials, that will study your necessities.

Copper-Tungsten is a contact material used as electrodes or for high power switching in medium and high voltage. The properties of Cu/W materials are similar to the properties of Ag/W. Nonetheless, although the cost of Cu/W is much lower than the cost of Ag/W, it cannot be used as a replacement, because, unlike the silver oxides, the copper oxides are very stable in high temperatures and drastically impact the contact resistance. Therefore, Cu/W are normally used in applications where the contact tip is protected against oxidation.

Copper-Tungsten is supplied by HP in the shape of contact tips and can also be machined into complex shapes. The typical properties are the following:

Alloy

W Content (%)

Conductivity (% IACS)

Hardness (HRB)

* This table shows typical material properties. The real contact properties will depend on the shape and production route.

If you have different requirements, HP has a team of materials engineers, specialized in the development of contact materials, that will study your necessities.

Harder than fine Silver, this contact material has a higher melting point and exhibits a nobler surface. It is largely resistant to sulphur and abrasion and burning. Available in the form of wire, rivets, profiles and contact tips.

Alloy

Pd (%)

Conductivity (% IACS)

Hardness HV10

Tensile strength (MPa)

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Electrical Contacts Manufacturer Company in India | Hindustan Platinum

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Electrical contacts are soft, high-conductivity & are essential components of any switching device. We provide electrical contacts to industries that handle low & medium voltage like Home Appliances, Automobile, Elevator, etc.

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Check Out  Catalyst Manufacturing Company | Hindustan Platinum

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Check Out  Catalyst Manufacturing Company | Hindustan Platinum

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Hindustan Platinum, a catalyst manufacturer company, provides clients with customized solutions. On the website, one can find out more about the operations.

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Know about Precious Metal Catalyst & Chemicals here at Hindustan Platinum

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Hindustan Platinum is a manufacturer of precious metal catalysts & chemicals. We majorly provide our services to Agrochemicals, Flavours & Fragrances and Fine & Bulk Chemical industries & more. Know more.

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Hindustan Platinum Provides Precious Metal Refining Services in India

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Hindustan Platinum Provides Precious Metal Refining Services in India

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The precious metal refining services provided by Hindustan Platinum are exact and accurate, responding to the necessities. More information about the procedure is available on the website.

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We refine precious metals with accuracy and precision. Our analytical methods trace the exact quantity and composition, while our high-yield technologies recover maximum precious metals.

Hindustan Platinum is home to premium precious metal refining facilities that cater to a diverse range of materials bearing traces of precious metals. We refine precious metals products for a wide and diverse range of industries such as oil refineries, petrochemicals, pharmaceuticals, nitric acid plants, glass industry, jewellery industry, man-made fiber industry, mining and others.

With more than six decades of experience, we have fined-tuned to perfection various traditional and innovative high-yield technologies to produce high purity precious metals.

Hindustan Platinum employs various measures to ensure stringent quality controls, which in turn ensure accurate traceability at all levels of the process. The precious metals content in scrap or spent catalysts received from industries are the main feed stock for the refinery. Sampling and assaying are key elements of our recovery processes, where precise metals content is determined for each lot received. Hindustan Platinum prides itself on the accuracy of its analytical abilities. Our laboratories are equipped with world class facilities, where a range of tests are performed on the samples including gravimetric analysis, fire assay, titration and ICP spectrometry. These tests reveal the exact precious metal content as well as the impurity profiles in the sample.

Once we have this analysis in place, the refining process recovers the precious metals through a series of physical and chemical hydrometallurgical processes to obtain precious metals that are over 99.95% pure, meeting international standards. These high purity metals are used for various industrial products. These range from catalysts for pharmaceutical industries to alloys used in the manufacture of engineered products like gauze, bushing, spinneret, stirrer, jewelry alloys, contact materials and others.

With our state-of-the-art facility and our use of continuously evolving technologies, we have an unbeaten track record of delivering perfection and precision.

Industries We serve

Hindustan Platinum provides integrated recovery and refining services on toll refining or outright purchase basis to both large and small scale industries. Our many satisfied customers over the years can vouch for our integrity and reliability.

REFINING SERVICES FOR oil refineries
AND petrochemical INDUSTRIES

Our core objective is to maximize the recovery of precious metals, keeping in mind it's high intrinsic value, we recycle all precious metal bearing scrap. We are completely equipped to recover precious metal contained in industrial scrap as well as catalysts and refine and recycle the same for fabrication into new products as per requirement, or for sale or credit into a metal account.

1. Recovery and Refining of precious metals from Spent catalysts

2. Out-right purchase of Spent catalysts

For both the above options, we have to first determine the precious metal contents for which representative samples from the entire lot need to be drawn for analysis

Sampling can be carried out by various methods depending on equipment available viz

A. Random sampling by Grab method

C. Coning and Quartering method

Since the Spent catalysts contains precious metals and is of high value, it is imperative that accurate sampling be carried out. For this, we have at our facility, installed a mechanical sampling system where based on type of Spent catalysts received, sampling is carried out unmanned and on unbiased basis, with throughput of 20 - 25 drums per hour. Material is sieved and segregated into three streams: Main catalyst, Fines and oversize with samples drawn online.

Depending on the type of material to be reclaimed, hydrometallurgical and/or pyrometallurgical process are followed to achieve the highest possible metal recovery at the lowest possible cost with the shortest turnaround time.

The Hindustan Platinum advantage

Reclamation of precious metals from wide variety of scraps & spent catalysts at economical processing costs

Latest technology for unbiased accurate sampling of all materials

Reliable analytical methods for accurate precious metal determination

Modern technologies yielding maximum return of precious metals

Well-located to service Europe, Middle East as well as Far East Asia

Environmentally friendly processes adhering to Air and Water regulations

Our various certificates stand testament to our core values and commitment to provide contact materials with the highest quality and reliability with repeatability without compromising the environment and safety of our teams.

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Check out the Precious Metal Refining Services in India | Hindustan Platinum

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Hindustan Platinum is a company that refines precious metals with efficiency and accuracy. We refine precious metals products for different industries like such as oil refineries, petrochemicals, pharmaceuticals, nitric acid plants & more. Know more.