| 摘要 |
A steel for a crawler-type suspension component used as a material constituting, e.g., a link (9), the steel comprising: 0.39-0.45 mass% of carbon, 0.2-1.0 mass% of silicon, 0.10-0.90 mass% of manganese, 0.002-0.005 mass% of sulfur, 0.1-3.0 mass% of nickel, 0.70-1.50 mass% of chromium, and 0.10-0.60 mass% of molybdenum, the remainder being iron and unavoidable impurities. |
