Bronze Bro8c4 (БрОЦ8-4)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
БрО8Ц4 |
| Designation GOST Latin |
BpO8Ts4 |
| Transliteration |
BrO8Ts4 |
| The chemical elements |
BaSn8Zn4 |
| Name |
The value |
| Designation GOST Cyrillic |
БрОЦ8-4 |
| Designation GOST Latin |
BpOTs8-4 |
| Transliteration |
BrOTs8-4 |
| The chemical elements |
BaSnZn8-4 |
Description
Bronze Bro8c4 used: for the manufacture of castings parts fittings, shaped parts of pipelines; pumps operating in sea water; casting parts for shipbuilding, ship engineering and instrumentation.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 613-79 |
| Castings from non-ferrous metals and alloys |
В84 |
OST 5Р.9209-82 |
Chemical composition
| Standard |
S |
P |
Si |
Ni |
Fe |
Cu |
As |
Al |
Zn |
Sn |
Sb |
Pb |
Mg |
| GOST 613-79 |
≤0.05 |
≤0.05 |
≤0.02 |
≤2 |
≤0.3 |
The rest |
≤0.15 |
≤0.02 |
4-6 |
7-9 |
≤0.3 |
≤0.5 |
≤0.02 |
Cu is the basis.
According to GOST 613-79 and OST 5P.9209-82, the total content of impurities should be ≤ 1.00%. Impurities not regulated by the standard are included in the total amount of impurities. The sum of impurities of silicon and aluminum should not exceed 0.020%. In bronze, not intended for casting parts operating under hydraulic pressure, the manufacturer's agreement with the consumer allows the mass fraction of aluminum to 0.050% and silicon - up to 0.050%. The mass fraction of nickel due to copper and the amount of impurities is not included. The mass fraction of lead, as agreed by the manufacturer with the consumer, is allowed up to 1.50%, in which case the total amount of impurities is not included. In bronze intended for welded structures, the mass fraction of lead should be no more than 0.050%.
Mechanical characteristics
| sT|s0,2, MPa |
σB, MPa |
d5, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
| Castings are supplied without heat treatment. The permanent mold in the ground, centrifugal, investment casting, shell moulded |
| ≥78.4 |
≥196 |
≥10 |
≥196 |
≥75 |
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 |
