DIN 1.8988 Structural and constructional steels
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DIN 1.8988 Chemical Composition
EN 10137-2: 1995 / Plates and wide flats made of high yield strength structural steels in the quenched and tempered or precipitation hardened conditions - Part 2: Delivery conditions for quenched and tempered steels
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DIN 1.8988 Physical Properties
Temperature
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DIN 1.8988 Heat Treatments
- If, due to regulations or for constructional reasons, stress relief annealing is necessary, it should be carried out at 530-580°C. If, in special cases, a higher temperature is to be used, the temperature must be 30°C lower than the actual tempering temperature, with a holding time of no more than 60 minutes.
- Normalizing or hardening: heat at 880°C to 940°C, after reaching the temperature in the entire cross section, cool in water or oil.
Tempering: heat at 600°C to 730°C, hold for at least 30 minutes, cool in air.
Stress relief annealing: heat at 530°C to 580°C, hold at least 15 minutes for thickness 15 mm and under; 30 minutes at least for thickness 15 - 30 mm; 60 minutes at least for thickness 30 - 50 mm, and cool in air.
DIN 1.8988 Mechanical Properties
Temperature
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DIN 1.8988 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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- 1267Cross References
- 64Composition
- 94Mechanical Properties
- 70Physical Properties
- 2Heat Treatment
- -Metallography
- -Machinability
- 10Stress-Strain
- 1Formability
- -Fatigue
- -Fracture
- -Creep
- 44Joints
- -Coatings
- 32Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
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