Designation
| Name |
The value |
| Designation GOST Cyrillic |
ЗлНЦМ 75-7,5-2,5 |
| Designation GOST Latin |
ZlHTsM 75-7,5-2,5 |
| Transliteration |
ZlNTsM 75-75-25 |
| By chemical elements |
AuNiZnCu 75-7,5-2,5 |
| Name |
The value |
| Designation GOST Cyrillic |
ЗлНЦМ 750-75-25 |
| Designation GOST Latin |
ZlHTsM 750-75-25 |
| Transliteration |
ZlNTsM 750-75-25 |
| By chemical elements |
AuNiZnCu 750-75-25 |
Description
Alloy Tlnzm 75−7,5−2,5 is used: for the manufacture of jewellery, typically with diamonds, emeralds and other precious stones.
Note
Gold-Nickel-zinc alloy 750-th sample. Nickel changes the color of the alloy is pale yellow. 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 |
Ni |
Fe |
Cu |
Zn |
Sb |
Pb |
Bi |
O |
Au |
| GOST 30649-99 |
7-8 |
≤0.15 |
Rest |
2.1-2.9 |
≤0.005 |
≤0.005 |
≤0.005 |
≤0.007 |
75-75.5 |
Au is the base.
According to GOST 30649-99 the chemical composition is given for the jewelry alloy YuZlNTSM 75-7,5-2,5 (YuZlNTSM 750-75-25). The sum of the normalized impurities is ≤ 0.170%.
Physical characteristics
| Temperature |
r, kg/m3 |
| 20 |
14810 |
A description of the physical symbols
| Name |
Description |
| r |
Density |
Technological properties
| Name |
The value |
| Pressure treatment |
Suitable for rolling, drawing. Preserving the malleability of the metal, Nickel gives it the hardness. |
| Casting |
Suitable for all kinds of casting, including investment casting. Nickel improves the casting properties of the alloy. |
