| 摘要 |
A rail vehicle wheel tire or solid wheel consists of a special rolling contact bearing steel of specified composition. A rail vehicle tire or solid wheel consists of a rolling contact bearing steel of composition (by wt.) 0.30-0.70% carbon, 0.30-1.50% silicon, 0.20-1.00% manganese, less than 0.025% phosphorus, less than 0.025% sulfur, less than 0.5% chromium, less than 0.30% copper, 0.2-1.00% molybdenum, less than 0.5% nickel and less than 0.3% vanadium.
|
