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(1) Grade: Round steel GB 42CrMo/ SAE 4140/ JIS SCM 440
(2) Chemical composition: %
C | Si | Mn | P | S | Ni | Cr | Cu | Mo |
| 0.42 | 0.27 | 0.65 | 0.015 | 0.014 | 0.018 | 1.10 | 0.017 | 0.23 |
(3) Mechanical property:
| Tensile strength | Yield strength | Akv | Elongation | Reduction of area | Hardness |
| >=1080 MPA | >=930 MPA | >=63J | >=12% | >=45% | <=217 HBS |
(4) Diameter: Φ 20mm to 250mm
(5) Length: 6m or according to client's request
(6) Surface condition: Rough repaired
(7) Delivery Condition: Hot rolled, without heat treatment
(8) Application: Big gear wheel, Mechanical processing
(9) Basic manufacturing equipment as follows:
Landle furnace
Vaccum degass
continuous casting
Quality inspect
GB 42CrMo/ SAE 4140/ JIS SCM 440 round steel