PROPRIETARY S7140/NAAMS Structural and constructional steels
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This material has 18 properties — only a subset is shown here.
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PROPRIETARY S7140/NAAMS Chemical Composition
Index for stamping dies cast materials, NAAMS Global Standard Components - Stamping, 2015
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PROPRIETARY S7140/NAAMS Physical Properties
Temperature
This material has 18 properties — only a subset is shown here.
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PROPRIETARY S7140/NAAMS Heat Treatments
- Castings can be delivered in the annealed or pre-hardened. Pre-hardened castings are typically used for trim steels weighing 20 kg or less.
Annealed:
Heat to 840-880°C and hold for a minimum of one hour plus one hour per 25mm of section thickness using maximum section thickness. Castings shall be furnace cooled to 560°C at a rate not to exceed 45°C per hour, then air cooled at room temperature.
Pre-Hardened:
Pre-Hardened: Heat to 840-880°C and hold 25 minutes at temperature. Quench with a cooling speed of 15°C per minute. Temper tool as soon as temperature reaches 50-70°C. Temper twice at 560-600°C.
PROPRIETARY S7140/NAAMS Mechanical Properties
Temperature
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PROPRIETARY S7140/NAAMS 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
- 6Composition
- 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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