Bronze Bra7mc15zh3n2c2 (Neva-70)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
БрА7Мц15Ж3Н2Ц2 |
| Designation GOST Latin |
BpA7Mts15Zh3H2Ts2 |
| Transliteration |
BrA7Mts15G3N2Ts2 |
| The chemical elements |
BaAl7Mn15Fe3Ni2Zn2 |
| Name |
The value |
| Designation GOST Cyrillic |
Нева-70 |
| Designation GOST Latin |
Heba-70 |
| Transliteration |
Neva-70 |
| The chemical elements |
Niева-70 |
Description
Bronze Bra7mc15zh3n2c2 used: for the manufacture of anti-friction casting parts; casting parts for shipbuilding, ship engineering and instrumentation.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 493-79 |
| Castings from non-ferrous metals and alloys |
В84 |
OST 5Р.9209-82 |
Chemical composition
| Standard |
C |
P |
Mn |
Si |
Ni |
Fe |
Cu |
As |
Al |
Zn |
Sn |
Sb |
Pb |
| OST 5Р.9209-82 |
≤0.05 |
≤0.02 |
14-15.5 |
≤0.1 |
1.5-2.5 |
2.5-3.5 |
The rest |
≤0.05 |
6.6-7.5 |
1.5-2.5 |
≤0.1 |
≤0.05 |
≤0.05 |
Cu is the basis.
According to GOST 493-79 and OST 5P.9209-82, the total content of impurities is ≤ 0.50%. Impurities, which are not regulated, are included in the total amount of impurities.
Mechanical characteristics
| sT|s0,2, MPa |
σB, MPa |
d5, % |
kJ/m2, кДж/м2 |
| Castings are supplied without heat treatment |
| ≥274.4 |
≥607 |
≥18 |
≥392 |
Description mechanical marks
| Name |
Description |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| kJ/m2 |
Toughness |
