UNI 40 NiCrMo 2 Structural and constructional steels
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UNI 40 NiCrMo 2 Chemical Composition
UNI 7874: 1979 / Forged unalloyed or special-alloyed, quenched and tempered or normalized steel flat products
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UNI 40 NiCrMo 2 Physical Properties
Temperature
This material has 181 properties — only a subset is shown here.
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UNI 40 NiCrMo 2 Heat Treatments
- Forging: 850-1050°C; Queching: 830-850°C (duration of permanence at hardening must be sufficient so that the transformation of steel structure is complete in whole mass of arc rod the duration should not be less than 1/2 hr.), oil (temperature must be between 15-60°C); Tempering: 550-650°C, at least 1 hour. Jominy test piece hard: 850 +/-5°C (piece must always be normalized before the test). Soft annealing: 640-680°C; Normalizing 850-880°C.
- Normalizing: 850-870°C, air cooled; Hardening: 840-860°C, oil cooled; Tempering: 550-650°C, air cooled.
UNI 40 NiCrMo 2 Mechanical Properties
Temperature
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UNI 40 NiCrMo 2 International Equivalent Materials
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- 87Cross References
- 25Composition
- 47Mechanical Properties
- 3Physical Properties
- 5Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
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- -Tribology
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- -Irradiation
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