Bronze Bra7mc15zh3n2c2 (Neva-70)

Designation

Name The value
Designation GOST Cyrillic БрА7Мц15Ж3Н2Ц2
Designation GOST Latin BpA7Mts15Zh3H2Ts2
Transliteration BrA7Mts15G3N2Ts2
By chemical elements BaAl7Mn15Fe3Ni2Zn2
Name The value
Designation GOST Cyrillic Нева-70
Designation GOST Latin Heba-70
Transliteration Neva-70
By 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, and their alloys В51 GOST 493-79
Castings, 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 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 properties

sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2
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%
σU Limit short-term strength
d5 Elongation after rupture
KCU Toughness