DIN 55 Si 7 Structural and constructional steels
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DIN 55 Si 7 Chemical Composition
DIN 17221: 1955 / Hot rolled steels for springs suitable for quenching and tempering - Technical delivery conditions
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DIN 55 Si 7 Physical Properties
Temperature
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DIN 55 Si 7 Heat Treatments
- Hot forming to forging at 1050-850°C; Hot forming to springs at 900-830°C;
Annealing at 640-680°C;
Normalizing at 830-860°C;
Hardening and tempering: hardening in oil at 830-860°C and tempering at 470-540°C - Soft annealing: 650-690°C; Hardening (quenching in oil): 830-860°C; Tempering: 300-500°C
DIN 55 Si 7 Mechanical Properties
Temperature
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DIN 55 Si 7 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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- 113Cross References
- 10Composition
- 12Mechanical Properties
- 3Physical Properties
- 9Heat Treatment
- 9Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- 1Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 103Total Suppliers