Alloy 83 SRM (SRM 830)

Designation

Name	The value
Designation GOST Cyrillic	СрМ 83
Designation GOST Latin	CpM 83
Transliteration	SrM 83
By chemical elements	AgCu 83

Name	The value
Designation GOST Cyrillic	СрМ 830
Designation GOST Latin	CpM 830
Transliteration	SrM 830
By chemical elements	AgCu 830

Description

Alloy SRM 83 is used: for the manufacture of tableware (spoons, forks, knives, coasters, dishes, blades, shovels, cups, glasses, sugar bowls, tea strainer); ritual and ceremonial items (wedding rings, crosses); jewellery for personal adornment (rings, rings, medallions, pendants, brooches, chains, bracelets, pins, cufflinks); cigarette cases and cigarette holders; commemorative medals and badges.

Note

Alloy silver-copper. With the increase of copper content in the alloy increases its hardness, but alloy becomes yellowish. The oxygen in the alloy increases the hardness and fragility.

Standards

Name	Code	Standards
Non-ferrous metals, including rare, and their alloys	В51	GOST 30649-99, GOST Р 51152-98

Chemical composition

Standard	Fe	Cu	Sb	Pb	Bi	O	Ag
GOST 30649-99	≤0.13	Rest	≤0.002	≤0.005	≤0.002	≤0.01	83-83.5

According to GOST 30649-99, the chemical composition is given for the jewelry alloy YUSRM 83 (YUSPR 830). The sum of the normalized impurities is ≤ 0.150%.

Physical characteristics

Temperature	r, kg/m³
20	10190

A description of the physical symbols

Name	Description
r	Density

Technological properties

Name	The value
Pressure treatment	The alloy is suitable for all types of cold treatment.
Casting	The alloy is suitable for all kinds of casting.