Description:
Aplication
locomotive industry | ship making industry |
oil industry | machining industry |
chemical engineering industry | electric power industry |
automobile industry | coal feeder industry |
aviation industry | space flight industry |
national defense construction |
|
Chemical composition (%)
Grade | C | Si | Mn | Cr | Mo |
42CrMo | 0.38~0.45 | 0.17~0.37 | 0.50~0.80 | 0.90~1.20 | 0.15~0.25 |
20CrMo | 0.17~0.24 | 0.17~0.37 | 0.40~0.70 | 0.80~1.10 | 0.15~0.25 |
Processing
Electric arc furnace melting→refining furnace→vacuum treatment furnace→
→cast ingot→steel ingot anneal→ heating → high-speed forging, refining
forging→annel,retarded cooling,air cooling→quenching and tempering
treatment→finishing operation→test→finished products
Pictures
Packaging of Round Rod:
Company Picture: