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Bronze Bra9mc2l (Bramc9-2L)

Designation

Name The value
Designation GOST Cyrillic БрА9Мц2Л
Designation GOST Latin BpA9Mts2L
Transliteration BrA9Mts2L
The chemical elements BaAl9Mn2
Name The value
Designation GOST Cyrillic БрАМц9-2Л
Designation GOST Latin BpAMts9-2L
Transliteration BrAMts9-2L
The chemical elements BaAlMn9-2

Description

Bronze Bra9mc2l used: for the manufacture of anti-friction casting parts; parts of valves employed in fresh water, liquid fuel, and a couple at temperatures up to +250 °C; details of pipeline valves and actuators to it; 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 of cast iron (gray and malleable cast iron) В81 OST 24.207.01-90
Castings from non-ferrous metals and alloys В84 OST 5Р.9209-82

Chemical composition

Standard P Mn Si Ni Fe Cu As Al Zn Sn Sb Pb
OST 5Р.9209-82 ≤0.1 1.5-2.5 ≤0.2 ≤1 ≤1 The rest ≤0.05 8-9.5 ≤1.5 ≤0.2 ≤0.05 ≤0.1
Cu is the basis.
According to GOST 493-79 and OST 5P.9209-82, the total content of impurities is ≤ 2.80%. Impurities, which are not regulated, are included in the total amount of impurities.
According to OST 5P.9209-82 in castings intended for parts operating under sea water washing conditions, the upper limit of aluminum content should not exceed 9.20%.

Mechanical characteristics

sT|s0,2, MPa σB, MPa d5, % kJ/m2, кДж/м2 Brinell hardness number, MPa
Casting as supplied. Die casting, sand casting, shell mold, centrifugal, investment casting, pressure. Without heat treatment
≥137.2 ≥392 ≥20 ≥686 ≥80

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

Physical characteristics

Temperature Е, ГПа r, кг/м3 l, Вт/(м · °С) R, НОм · м
20 903 7600 712 110

A description of the physical symbols

Name Description
r Density
l Coefficient of thermal conductivity
R UD. the resistivity

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