UNS C83400 grade is copper casting alloy that relates to European red brasses. It contains 905 of copper (Cu) and 10% of zinc (Zn). This alloy relates to category Red Brass. It has attractive red-pink tint and differs with high workability. It can be perfectly brazed by braze solder. This alloy badly undergoes modification of heat treatment. It has stress-relieving temperature of +260°C (500°F). Density of material constitutes 8,77 g / cm3 (0,317 pound / in³).
Percentage composition according to EN12165
|87−90.5||6.1−7.2||6.1−7.2||6.1−7.2||≤ 0,1||≤ 0,01||≤ 0,005||≤ 0,002|
Total corrosion resistance of brass in condition of high atmosphere moisture equals average resistance of all elements contained in alloy.
Physical characteristics of red brass alloys:
1) Rockwell hardness is 50;
2) Tensile strength rupture limit of material is 241 MPa (35 000 pounds per square inch);
3) Yield limit of material is 69 MPa (10000 pounds per square inch);
4) Ultimate elongation at break is 30%;
5) Poisson’s ratio is 0,34;
6) Module of material elasticity is 117 HPa (16969 KSI);
There are recommended two methods of welding: autogenous welding, gas arc welding under protection. Arc carbon welding is not recommended for this alloy. There is acceptable joint of details by brazing (with braze solders). Validation of alloy process ability is 60.
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