DIN 1.6772 Structural and constructional steels
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DIN 1.6772 Chemical Composition
WB 337: 2022 / Heat resistant steel 20 NiCrMo 14 5 I and 20 NiCrMo 14 5 II for nuts and bolts, material 1.6772
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DIN 1.6772 Physical Properties
Temperature
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DIN 1.6772 Heat Treatments
- Quenched and tempered (I) - Hardened: 830 to 900°C, tempering in water or oil; Tempering: 520 to 600°C; Stress relieved: 430 to 470°C. Quenched and tempered (II) - Hardened: 830 to 900°C, tempering in water or oil; Tempering: 500 to 580°C; Stress relieved: 430 to 470°C.
- Quenched and tempered (I) - Hardened: 840 to 900°C, tempering in water or oil; Tempering: 520 to 600°C; Stress relieved: 430 to 470°C. Quenched and tempered (II) - Hardened: 800 to 900°C, tempering in water or oil; Tempering: 500 to 580°C; Stress relieved: 430 to 470°C.
DIN 1.6772 Mechanical Properties
Temperature
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DIN 1.6772 International Equivalent Materials
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Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.
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- 2Cross References
- 18Composition
- 48Mechanical Properties
- 88Physical Properties
- 2Heat Treatment
- -Metallography
- -Machinability
- 5Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- 1Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
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