SHANGHAI UNITE STEEL
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41Cr4/5140/ SCr440/40Cr Cold Finished Bar , Alloy Steel Bar 2-100 Mm Diameter
Related specification:
European: 41Cr4
USA: ASTM A29 , ASTM A510 , ASTM A519
SAE J404
SAE: 5140
Japan: JIS S SCr440
Chemical composition(%):
| Grade | C | Si | Mn | P | S | Cr |
| 5140 | 0.38-0.43 | 0.15-0.35 | 0.70-0.90 | 0.030 max | 0.040 max | 0.70-0.90 |
| 41Cr4 | 0.38-0.45 | 0.40 max | 0.60-0.90 | 0.025 max | 0.035 max | 0.90-1.20 |
| 40Cr | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | 0.035 max | 0.035 max | 0.80-1.10 |
| Heat Treatment | Mechanical Properties | Hardness | ||||||
| Normalizing | Quenching | Tempering | Tensile Strength (Mpa) |
Yield Point (Mpa) |
Elongation (%) |
Reduction of area (%) |
Impact Absorbing Energy (J) |
Before Heat Treatment (HB) |
| Celsius Degree | MIN | MAX | ||||||
| / | 850 | 520 | 980 | 785 | 9 | 45 | 47 | 207 |
Size range:
Dia: 2-100mm
Length Random Length, Fixed Length, etc.
Certificate of Quality: issued in English, in addition the normal terms, production process, the mechanical property yield strength, tensile strength, elongation and hardness, forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality.
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.