NBR 5140 Structural and constructional steels
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NBR 5140 Chemical Composition
NBR NM 87: 1996 / Carbon steel and steel alloy for general engineering purposes - Designation and chemical composition
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NBR 5140 Physical Properties
Temperature
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NBR 5140 Heat Treatments
- Heat treatment procedure above critical temperature Ac1: 1. Uniformal heating to not more than 50 °C above the Ac1; 2. Cooling in protecting atmosphere to temperature not less then 50 °C below the Ac1.
- Austenitizing at 840 ± 10°C;
Core hardenability shall be achieved by direct quenching in oil. Core shall be heated to 55 ± 15°C, with time equivalent to 2 min/mm of diameter at the austenitizing temperature. The length of the specimen shall be at least 3 times its diameter
NBR 5140 Mechanical Properties
Temperature
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NBR 5140 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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- 161Cross References
- 27Composition
- 18Mechanical Properties
- 3Physical Properties
- 2Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 114Total Suppliers