| Quantity: | |
|---|---|
CHEMICAL COMPOSITION
C: 0.15 – 0.21%
Mn: 0.50 – 0.90%
Si: 0.40%
Cr: 1.50 – 1.80%
Ni: 1.40 – 1.70%
Mo: 0.25 – 0.35%
MECHANICAL PROPERTIES
Tield strength: ≥590MPa
Tensile strength: ≥780MPa
Elongation: ≥11%
HEAT TREATMENT
Soft Annealing: 650-700°C, cool slowly in furnace After annealing, it achieves max hardness of 229
Normalizing: 850-880°C, air
Hardening: Carburising: 880-980°C
Core Hardening: 830-870°C, water
Case Hardening: 780-820°C, water
Tempering:Temperature: 150-200°C
FORGING
18CrNiMo7-6 exhibits good plasticity during forging, which allows it to be forged into complex shapes and components. Forging can improve the density of the material and the uniformity of the microstructure. When forging 18CrNiMo7-6, it is necessary to control the forging temperature and deformation rate to optimize the microstructure and mechanical properties. For example, by controlling the dynamic recrystallization during forging, grain growth can be avoided, thereby maintaining the high strength and toughness of the material.
CHEMICAL COMPOSITION
C: 0.15 – 0.21%
Mn: 0.50 – 0.90%
Si: 0.40%
Cr: 1.50 – 1.80%
Ni: 1.40 – 1.70%
Mo: 0.25 – 0.35%
MECHANICAL PROPERTIES
Tield strength: ≥590MPa
Tensile strength: ≥780MPa
Elongation: ≥11%
HEAT TREATMENT
Soft Annealing: 650-700°C, cool slowly in furnace After annealing, it achieves max hardness of 229
Normalizing: 850-880°C, air
Hardening: Carburising: 880-980°C
Core Hardening: 830-870°C, water
Case Hardening: 780-820°C, water
Tempering:Temperature: 150-200°C
FORGING
18CrNiMo7-6 exhibits good plasticity during forging, which allows it to be forged into complex shapes and components. Forging can improve the density of the material and the uniformity of the microstructure. When forging 18CrNiMo7-6, it is necessary to control the forging temperature and deformation rate to optimize the microstructure and mechanical properties. For example, by controlling the dynamic recrystallization during forging, grain growth can be avoided, thereby maintaining the high strength and toughness of the material.
