Alloy Clsrm 75-15 (Clsrm 750-150)

Designation

Name The value
Designation GOST Cyrillic ЗлСрМ 75-15
Designation GOST Latin ZlCpM 75-15
Transliteration ZlSrM 75-15
By chemical elements AuAgCu 75-15
Name The value
Designation GOST Cyrillic ЗлСрМ 750-150
Designation GOST Latin ZlCpM 750-150
Transliteration ZlSrM 750-150
By chemical elements AuAgCu 750-150

Description

Alloy Clsrm 75−15 used: for the production of jewelry for personal adornment (rings, rings, earrings, lockets, brooches, bracelets, clips, tie pins, cufflinks; gifts; commemorative medals; jewelry with emeralds.

Note

The gold-silver-copper alloy 750-th sample. One of the best combination of decorative and technological properties among jewelry alloy 750-th sample of the alloy Clsrm 750−150 (greenish-yellow).

Standards

Name Code Standards
Sheets and strips В53 GOST 24552-81
Classification, nomenclature and General rules В50 GOST 6563-75
Non-ferrous metals, including rare, and their alloys В51 GOST 6835-80, GOST 30649-99, GOST Р 51152-98, TU 117-1-804-95, TU 1995-804-05785324-2005

Chemical composition

Standard P Fe Cu Sb Pb Bi O Ag Au
GOST 6835-80 ≤0.005 ≤0.15 9.5-10.5 ≤0.005 ≤0.005 ≤0.005 - 14.5-15.5 74.5-75.5
GOST 30649-99 - ≤0.15 Rest ≤0.005 ≤0.005 ≤0.005 ≤0.007 14.5-15.5 75-75.5
Au is the base.
According to GOST 6835-80 the amount of normalized impurities is ≤ 0.170%.
According to GOST 30649-99 the chemical composition is given for the jewelry alloy YuZlSrM 75-15 (YuZlSrM 750-150). The sum of the normalized impurities is ≤ 0.170%.

Physical characteristics

Temperature r, kg/m3
20 15530

A description of the physical symbols

Name Description
r Density

Technological properties

Name The value
Machinability For machining, including diamond processing, it is preferable to use negativnoe or hardened state.
Pressure treatment To all kinds of cold treatment.
Features of heat treatment Low-temperature annealing leads to a significant increase of hardness, while reducing ductility. This can be used to improve the wear resistance of products.
Casting When the casting alloy must be melted under vacuum and poured under a protective atmosphere.
Soldering Alloy well soldered and recommended for the manufacture of products coated with enamel.