Bronze Bra9zh3l (Brazh9-4L)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
БрА9Ж3Л |
| Designation GOST Latin |
BpA9Zh3L |
| Transliteration |
BrA9G3L |
| The chemical elements |
BaAl9Fe3 |
| Name |
The value |
| Designation GOST Cyrillic |
БрАЖ9-4Л |
| Designation GOST Latin |
BpAZh9-4L |
| Transliteration |
BrAG9-4L |
| The chemical elements |
BaAlFe9-4 |
Description
Bronze Bra9zh3l used: for the manufacture of anti-friction casting parts; valve parts; casting parts mining and metallurgical machinery; casting parts, metallurgical engineering (simple shaped castings, valves (except steam), gears, gear wheels, boxes and plates, valves, bearings, bushings, pump bodies, pressure rings, rods, nuts, seals and other bearing parts used at pressures up to 200 kgf/cm2, paired with steel cemented worm); casting parts for shipbuilding, ship engineering and instrumentation.
Note
Aluminum bronze. Recommended as a substitute for tin bronzes. Anti-corrosion, heat-resistant (up to 265 °C) bronze, resistant to atmosphere, fresh and sea water.
The coefficient of friction of bronze of 0.18 without lubrication with grease of 0.004. The maximum allowable speed — 10 m/s Maximum load rating: static — 300 kgf/cm2, the dynamic — 600 kgf/cm2 s.
Standards
| Name |
Code |
Standards |
| Castings with special properties (cast iron and steel) |
В83 |
KSt 81-033:2009 |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 493-79, OST 4.021.009-92, OST 4.021.011-92, STP М314-95 |
| Castings from non-ferrous metals and alloys |
В84 |
OST 1 90046-72, OST 24.916.01-71, OST 5Р.9209-82 |
Chemical composition
| Standard |
P |
Mn |
Si |
Ni |
Fe |
Cu |
As |
Al |
Zn |
Sn |
Sb |
Pb |
| KSt 81-033:2009 |
≤0.1 |
≤0.5 |
≤0.2 |
≤1 |
2-4 |
The rest |
- |
8-10.5 |
≤1 |
≤0.2 |
≤0.05 |
≤0.1 |
| OST 5Р.9209-82 |
≤0.1 |
≤0.5 |
≤0.2 |
≤1 |
2-4 |
The rest |
≤0.05 |
8-10.5 |
≤1 |
≤0.2 |
≤0.05 |
≤0.1 |
| OST 24.916.01-71 |
≤0.1 |
≤0.5 |
≤0.2 |
≤1 |
2-4 |
The rest |
≤0.05 |
8-10 |
≤1 |
≤0.2 |
≤0.05 |
≤0.1 |
Cu is the basis.
According to GOST 493-79, OST 24.916.01-71, OST 5P.9209-82 and STP M314-95, the total content of impurities is ≤ 2.70%. Impurities, which are not regulated, are included in the total amount of impurities.
According to OST 24.916.01-71 lead content is allowed up to 0.30% when used for shaped casting, with the total amount of impurities allowed to be ≤ 1.00%.
Mechanical characteristics
| sT|s0,2, MPa |
σB, MPa |
d5, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
| Castings are supplied without heat treatment |
| ≥196 |
≥392 |
≥10 |
≥196 |
≥100 |
| ≥196 |
≥490 |
≥12 |
≥196 |
≥100 |
| - |
≥392 |
≥10 |
- |
≥100 |
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 |
r, кг/м3 |
| 20 |
7500 |
A description of the physical symbols
| Name |
Description |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
