round steel bar 42crmo4
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Quality/Safety Certification: 0.00
1.AISI 4140,JIS SCM440 ,DIN 1.7225
2.Certification:ISO 9001:2000
3.Quality assurance&Steady supply
4.Manufacturer&best price
1.AISI 4140,JIS SCM440 alloy constructional steel
2.Mechanical Properties
sample size / mm | Heat Treatment System | Mechanical Properties | |||||||
Quenching | Tempering | Yield Strength σs/MPa | Tensile strength σb/MPa |
| Reduction in Area φ/% | Impact Strength (J) | |||
Temperature/°C | Refrigerant | Temperature/°C | Refrigerant | Not less than | |||||
25 | 850 | Water/Air cooling | 560 | Water/Air cooling | 980 | 1130 | 12 | 45 | 63 |
