Alloy Zlsbl 75-8-9 (Zlsbl 750-80-90)

Designation

Name The value
Designation GOST Cyrillic ЗлСрПлМ 75-8-9
Designation GOST Latin ZlCpPlM 75-8-9
Transliteration ZlSrPlM 75-8-9
By chemical elements AuAgPtCu 75-8-9
Name The value
Designation GOST Cyrillic ЗлСрПлМ 750-80-90
Designation GOST Latin ZlCpPlM 750-80-90
Transliteration ZlSrPlM 750-80-90
By chemical elements AuAgPtCu 750-80-90

Description

Alloy Zlsbl 75−8-9 used: for jewelry making, typically with diamonds, emeralds and other precious stones.

Note

The gold-silver-platinum alloy 750-th sample. Platinum gold color in the white color more intense palladium. Yellow is lost when the alloy contains more than 8% of platinum. Color tint alloy belongs to the group of white gold.

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 Au Pt
GOST 30649-99 ≤0.15 Rest ≤0.005 ≤0.005 ≤0.005 ≤0.007 7.5-8.5 75-75.5 8.5-9.5
Au is the base.
According to GOST 30649-99, the chemical composition is given for the jewelry alloy YuZlSrPdM 75-8-9 (YuZlSrPlM 750-80-90). The sum of the normalized impurities is ≤ 0.170%.

Physical characteristics

Temperature r, kg/m3
20 16780

A description of the physical symbols

Name Description
r Density

Technological properties

Name The value
Pressure treatment Suitable for rolling, drawing.
Casting Suitable for all types of casting. Platinum raises the melting point of the alloy.