| Quantity: | |
|---|---|
CHEMICAL COMPOSITION
C: 1.4-1.6
Si: ≤0.40
Mn: ≤0.60
P: ≤0.030
S: ≤0.030
Cr: 11.0-13.0
Mo: 0.80-1.20
Ni: ≤0.50
V: 0.20-0.50
Cu: ≤0.25
MECHANICAL PROPERTIES
Tensile strength (kgf/mm²): 128
Yield strength (kgf/mm²): 103
Elongation (%): 15.6
Cross section reduction rate (%): 38
Impact value (J/cm2): 2
Hardness (Hb) : 41
PHYSICAL PROPERTIES
Poisson’s ratio: 0.27-0.30
Elastic modulus: 190-210 GPa
Density: 7.7 x 1000 kg/m³
Melting point: 1421°C (2590°F)
HEAT TREATMENT
Annealing: 830~880℃ Furnace Cooling
Hardening: 1000~1050℃ Air Cooling
Tempering: 150~200℃ Air Cooling or 530~550℃ Furnace Cooling
Ac: 815~875℃
Ar: 765~705℃
Ms: 200℃
FORGING
The forging heating temperature range is narrow. The initial forging temperature is recommended to be 1050-1080℃, and the final forging temperature is controlled at 830-860℃. Avoid exceeding 1000℃ to prevent coarse grains.
CHEMICAL COMPOSITION
C: 1.4-1.6
Si: ≤0.40
Mn: ≤0.60
P: ≤0.030
S: ≤0.030
Cr: 11.0-13.0
Mo: 0.80-1.20
Ni: ≤0.50
V: 0.20-0.50
Cu: ≤0.25
MECHANICAL PROPERTIES
Tensile strength (kgf/mm²): 128
Yield strength (kgf/mm²): 103
Elongation (%): 15.6
Cross section reduction rate (%): 38
Impact value (J/cm2): 2
Hardness (Hb) : 41
PHYSICAL PROPERTIES
Poisson’s ratio: 0.27-0.30
Elastic modulus: 190-210 GPa
Density: 7.7 x 1000 kg/m³
Melting point: 1421°C (2590°F)
HEAT TREATMENT
Annealing: 830~880℃ Furnace Cooling
Hardening: 1000~1050℃ Air Cooling
Tempering: 150~200℃ Air Cooling or 530~550℃ Furnace Cooling
Ac: 815~875℃
Ar: 765~705℃
Ms: 200℃
FORGING
The forging heating temperature range is narrow. The initial forging temperature is recommended to be 1050-1080℃, and the final forging temperature is controlled at 830-860℃. Avoid exceeding 1000℃ to prevent coarse grains.
