C | Si | Mn | P | S | Cr | Mo | Ni | V |
0.50-0.60 | 0.15-0.35 | 0.50-0.80 | ≤0.025 | ≤0.025 | 0.60-0.80 | 0.25-0.35 | 1.5-1.80 | 0.07-0.12 |
熱膨脹系數 【10-6m/(m x K)】 |
20-100°C | 20-200°C | 20-300°C | 20-400°C | 20-500°C | 20-600°C | 20-700°C |
11.8 | 12.7 | 13.3 | 14.0 | 14.3 | |||
20°C | 350°C | 700°C | |||||
37.5 | 36.0 | 32.5 |
段造 | 軟性退火 | 淬 硬 | 回 火 |
1100-850°C | 650-700°C | 830-870°C | 300-600°C |