B.S. S 157 Structural and constructional steels
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B.S. S 157 Chemical Composition
BS S 157: 1976 / Specification. 3% nickel-chromium-molybdenum case-hardening steel billets, bars, forgings and parts (1180-1380 MPa)
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B.S. S 157 Physical Properties
Temperature
This material has 116 properties — only a subset is shown here.
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B.S. S 157 Heat Treatments
- Softening: t >= 630°C; The final heat treatment (FHT) shall consist of: Carburizing or blank carburizing: 880-930°C; Hardening (cooling in oil): 825°C; Tempering (cooling in air): 190°C
B.S. S 157 Mechanical Properties
Temperature
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B.S. S 157 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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- 56Cross References
- 8Composition
- 5Mechanical Properties
- 3Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
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