B.S. S 138A Structural and constructional steels
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B.S. S 138A Chemical Composition
BS S 138: 1967 / Specification for 3 per cent chromium-molybdenum-vanadium steel (vacuum remelted - air hardening) (157 kgf/mm2 (100 tonf/in2): limiting ruling section 30 mm (1⅛ in))
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B.S. S 138A Physical Properties
Temperature
This material has 25 properties — only a subset is shown here.
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B.S. S 138A Heat Treatments
- Harden by cooling in still air from a temperature between 920°C and 970°C. Temper at a suitable temperature between 500°C and 600°C.
B.S. S 138A Mechanical Properties
Temperature
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B.S. S 138A 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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- 5Cross References
- 10Composition
- 6Mechanical 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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