GB/T 3077 42CrMo4 alloy steel
GB/T 3077 42CrMo4 alloy steel
GB/T 3077 42CrMo4 alloy steel Hardness: <=217HBW Thermal processing Temperature1050-850 Heat Treatment: Annealed: 680-720°C Normalized: 840-880°C Quenched: 820-850°Cfor water, 830-860°C for oil Tempered: 540-680°C 42CrMo4 alloy steel Chemical composition %:
GB/T 3077 42CrMo4 alloy steel
Hardness: <=217HBW
Thermal processing Temperature1050-850
Heat Treatment: Annealed: 680-720°C
Normalized: 840-880°C
Quenched: 820-850°Cfor water, 830-860°C for oil
Tempered: 540-680°C
42CrMo4 alloy steel Chemical composition %:
C |
Si |
Mn |
P |
S |
Cr |
Mo |
0.38- 0.45 |
max 0.4 |
0.6 - 0.9 |
max 0.025 |
max 0.035 |
0.9 - 1.2 |
0.15 - 0.3 |
GB/T 3077 42CrMo4 Mechanical properties:
Yield |
Tensile |
Impact |
Elongation |
252 (≥) |
877 (≥) |
24 |
14 |
GB/T 3077 42CrMo4 Applications:
To manufacture high strength and conditioning section part that request more than 35CrMo, such as locomotive traction gear, supercharger gear. Connecting rod and spring clip, can also be used for oil drill pipe joints below 2000m deep.
Client demands
Customer's requirement configuration.
1. demandCustom design
Field inspection design and design plan.
2. designProcessing & transportation
Initial customized processing and transportation.
3. ProcessingOn-site installation
On-site guidance for construction and installation.
4. installation
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