Alloy 83 SRM (SRM 830)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
СрМ 83 |
| Designation GOST Latin |
CpM 83 |
| Transliteration |
SrM 83 |
| The chemical elements |
AgCu 83 |
| Name |
The value |
| Designation GOST Cyrillic |
СрМ 830 |
| Designation GOST Latin |
CpM 830 |
| Transliteration |
SrM 830 |
| The 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 metals, 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 |
The 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, кг/м3 |
| 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. |
