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 |
