| Standard: | DIN, JIS, AISI, ASTM, GB |
|---|---|
| Technics: | Hot Rolled |
| Application: | Tool Steel Bar |
| Surface: | Black |
| Alloy: | Alloy |
| Special Use: | Mold Steel |
| Samples: |
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| Customization: |
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| GB | AISI | DIN | JIS | BS |
| 40CrNiMo | SAE4340 | 1.6511 | SNCM439 | EN24 |
| Grades | C | Si | Mn | P | S | Cr | Mo | Ni | |
| AISI 4340 | 0.38-0.43 | 0.15-0.35 | 0.6-0.8 | ≤0.035 | ≤0.040 | 0.70~0.90 | 0.20~0.30 | 1.65~2.00 | |
| GB 40CrNiMo | 0.37~0.44 | 0.17~0.37 | 0.50~0.80 | ≤0.025 | ≤0.025 | 0.60~0.90 | 0.15~0.25 | 1.25~1.65 | |
| 40NiCrMo7 | 0.37-0.44 | 0.15-0.4 | 0.5-0.8 | ≤0.035 | ≤0.035 | 0.60~0.90 | 0.2-0.3 | 1.6-1.9 | |
| W.Nr. 1.6511 | 0.35~0.45 | ≤0.40 | 0.60~0.80 | ≤0.035 | ≤0.040 | 0.90~1.20 | 0.15~0.30 | 1.40~1.70 | |
| Quenching | Tempering | ||||
| Heating Temperature/ºC | Cooling | Hardness/HRC | Heating Temperature/ºC | Cooling | Hardness/HRC |
| 820-840 | Oil | ≥53 | 450-650 | Air | 25-40 |
| Tensile strength (psi) | 105,000 - 115,000 |
| Yield strength (psi) | 75,000 - 85,000 |
| Elongation in 2" (%) | 20 - 30 |
| Reduction of area (%) | 35 - 45 |
| Brinell Hardness (BHN) | 210 - 240 |
| Plate | Thickness | 20-120mm |
| Width | 2200mm | |
| Length | 4000-10000mm | |
| round bar | Diameter | 20-500mm |
| Length | 3000-6000mm |
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