55Si2MnA spring steel
Implementation of standards GB/T1222-1984
Grades 60Si2Mn;
Chemical composition (%):
C0.56 ~ 0.64,
Si1.50 ~ 2.00,
Mn1.00 ~ 1.30,
Cr less than or equal 0.35;
Quenching temperature: 870;
Coolant: Oil;
Tempering temperature: 480;
Yield point: MPA1175;
Tensile strength: 1275;
Elongation: 5;
Contraction on the rate of: 25.
Characteristics and uses (60Si2Mn, 60Si2MnA): the strength and elasticity of steel and 55SIMNB slightly higher than the 55SI2MN, a higher hardenability.
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55Si2MnA spring steel
Public Time:2011年10月18日 | Sort:Spring steel bars | Hits:1142