Group of Companies Precious Metals of Urals Group of Companies Precious Metals of Urals
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Semifinished items

We provide a wide range of semi-finished products (flat rolling, wire, soldering materials, tubes made from platinum group metals, gold, silver and its alloys), which can be applied in the variety of industries from jewelry to electrical engineering.

Tubes

Diameter ranges from 50 to 6 mm, wall thickness is from 3 to 0,2 mm, length is from 1 to 2 m
Application of welded blanks allows production of tubes with the diameter up to 250mm, and applying welded capillary blanks lets wall thickness up to 0,05 mm and more.

Wire

We provide wire of various diameters made of Pt, Au, Ag and alloys thereof
Field of application-electronics, electrical engineering, jewelry manufacturing.
The wire is available made from semicircular, radial, quadratic or rectangular blanks of precious metals with the diameter from 0,008 mm. Terms of Delivery — on bundle or spool.
Upon customers' request the wire can be specially heat treated.
We can also provide bimetallic wire with profile section, wire made of «fibrous» material having high homogeneity and thermo stability. GOST 7222—75 and GOST 18389—73

Solders

Our technicians will assist in choosing the right composition of the solder with applicable fusion temperature and mechanical properties. We guarantee in time delivery and compliance with high quality standards.

The composition of soldering materials and their application are presented in below table.

DescriptionAuAgPdOther componentst° of solderingField of application
Solder Au 58558,5–59,09,0–17,0Cu, Cd, Zn, In765–883Jewelry
Solder Au 585 .58,5–59,010,5–18,0Cu, Cd., Cz710–740Jewelry
Solder Au 585 58,5–59,010,5–18,0Cu, Cd., Cz810–840Jewelry
Solder Au 585 58,5–59,018,0–25,5Pd, Cu, Ni, Zn800–1100Jewelry
Solder Au 7506,0–13,06,0–13,00–10,0Cu, Cd., Cz740–1000Jewelry
Solder Au 75074,5–75,5Ag, Cu, Zn, B850–890Engineered materials
Solder AuAgCdCu 74,5–75,52,5–3,5Cd725–745Dentistry
Solder Ag 321,0–72,0Sn, Cd, P, Cu, Ni, Zn180–800Engineered materials, Dentistry
Solder AgCuZn 3736,0–38,0Mn, Ni, Mg, Zn, Cd710–740Stomatology

The solders based on platinum and palladium are applied for soldering of jewelry items and specific products.

The solders have been fabricated in the form of free-flowing scaly material of the following dimensions:

  • 0.1—0.01 mm thickness;
  • 2.0 — 10.0 mm width;
  • length — not less than 20 mm.

The chemical content of solders corresponds to the requirements of the Table 1.

Table 1
The Chemical Content of Solders Based on Platinum and Palladium

Alloy markThe mass share of components, % *
PlatinumPalladiumCopperSilicon**
PtCuSi 95–295.0–95.51.5–2.5 The rest
PtPdSi 95–295.0–95.51.5–2.5The rest
PtPdCuSi 85–1285.0–85.511.5–12.5The rest
PdCuSi 9090.0–90.56.5–7.5The rest
PdCuSi 9595.0–95.51.5–2.5The rest

* Impurity level hasn't not been determined, and it is regulated by charged materials.
** The mass share of silicon is defined as a balance between 100 % and the sum of determined components.

Properties of the solders are listed in the Table 2.

Table 2
Properties of the Solders Based on Platinum and Palladium

Solder BrandCalculated Density, g/sm3Melting Temperature (Interval), оС
PtCuSi 95–216.84950–1050
PtPdSi 95–216.98960–1100
PtPdCuSi 85–1210.34800–1100
PdCuSi 9010.49810–1150
PdCuSi 9510.66820–1200

Rolling

We provide an extended range of flat rolling according to the table below:

DescriptionSize of semi-finished products (mm.)
ThicknessWidthLength
Strips0.10–10.0050.0–250.0 200.0–500.0
Foil0.004–0.09Up to 200.0Up to 500.0
Flat tape0.005–0.800.15–3.00From 500

 
(с) Group of Companies Precious Metals of Urals Author Tsarikov
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