SHANGHAI UNITE STEEL
One-stop Brand Service Provider For Globle Machinery And Petrochemical Enterprise And Special Steel Distributor.
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4140,42CrMo4,42CrMo,SCM440 cold drawn square bar, cold finished bar
Product Advantages:
1. high strength
2. good toughness
3. good Hardenability
Chemical composition:
| Standard | Grade |
C |
Cr |
Mo |
Si |
Mn | P | S | Ni | Cu |
| ≤ | ||||||||||
| ASTM | 4140 | 0.38-0.43 | 0.80-1.10 | 0.15-0.25 | 0.15-0.35 | 0.75-1.00 | 0.035 | 0.040 | / | / |
| ENISO | 42CrMo4/1.7225 | 0.38-0.45 | 0.90-1.20 | 0.15-0.30 | ≤0.40 | 0.60-0.90 | 0.035 | 0.035 | / | / |
Size range:
3*3mm to 120*120mm
Length Random Length, Fixed Length, etc.
Surface: Smooth and polished
What is the Tolerance of our Round bar?
| Tolerance | H7 | H8 | H9 | H10 | H11 | F7 | F8 |
| 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.
