SHANGHAI UNITE STEEL
One-stop Brand Service Provider For Globle Machinery And Petrochemical Enterprise And Special Steel Distributor.
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4130 / 30CrMo / SCM430 Cold Rolled Steel Bar Dia 2-100 Mm Smooth / Bright Surface
Related specification:
| GB | AISI | JIS |
| 30CrMo | 4130 | SCM430 |
Chemical composition:
| Grade | C | Mn | Si | Cr | Mo | S | P |
| SAE4130 | 0.28-0.33 | 0.40-0.60 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 | ≤0.040 | ≤0.030 |
Size range:
Dia: 2-100mm
Length Random Length, Fixed Length, etc.
What is the Tolerance of our Round bar?
| Tolerance | H7 | H8 | H9 | H10 | H11 | F7 | F8 |
| OD mm | |||||||
| 6-10 | 0-0.015 | 0-0.022 | 0-0.036 | 0-0.058 | 0-0.09 | -0.013 | -0.013 |
| -0.028 | -0.035 | ||||||
| 10-18 | 0-0.018 | 0-0.027 | 0-0.043 | 0-0.058 | 0-0.09 | -0.016 | -0.016 |
| -0.034 | -0.043 | ||||||
| 18-30 | 0-0.021 | 0-0.033 | 0-0.052 | 0-0.084 | 0-0.13 | -0.02 | -0.02 |
| -0.041 | -0.053 | ||||||
| 30-50 | 0-0.025 | 0-0.039 | 0-0.062 | 0-0.1 | 0-0.16 | -0.025 | -0.025 |
| -0.05 | -0.064 | ||||||
| 50-80 | 0-0.030 | 0-0.046 | 0-0.074 | 0-0.12 | 0-0.19 | -0.03 | -0.03 |
| -0.06 | -0.076 | ||||||
| 80-120 | 0-0.035 | 0-0.054 | 0-0.087 | 0-0.14 | 0-0.22 | -0.036 | -0.036 |
| -0.071 | -0.9 |
Packing: Plastic reel shaft, and bound, iron wire frame, the paper barrel etc
Please feel free to contact us again if you have any further questions. We look forward to receiving an order from you.