Chemical Composition:
C :≤0.030
Si: ≤1.00
Mn:≤2.00
S : ≤0.030
P : ≤0.045
Cr:16.00~18.00
Ni:10.00~14.00
Mo:2.00~3.00
Physical Preoperties:
Strength of extension σb (MPa):≥480
Yield Strength σ0.2 (MPa):≥177
Elognation δ5 (%):≥40
Reduction area ψ (%):≥60
Hardness :≤187HB;≤90HRB;≤200HV
Dentisy:7.98g/cm3;
Specific Heat Ratio(20℃):0.502J/(g*K)
Heat conductivity(W/(m*K))
|
||
100℃
|
300℃
|
500℃
|
15.1
|
18.4
|
20.9
|
Heat treatment:
Solid solution :1010~1150℃ Rapid cooling