GB 55 Structural and constructional steels
Data updates
This material has 826 properties — only a subset is shown here.
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GB 55 Chemical Composition
GB/T 699: 2015 / Quality carbon structure steels
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GB 55 Physical Properties
Temperature
This material has 826 properties — only a subset is shown here.
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GB 55 Heat Treatments
- Normalizing at 820°C
- Recommended heat treatment: Normalized at 820 ± 30°C for not less than 30 min per 25 mm, air cooled, tempered at 600 ± 50°C for not less than 1 h per 25 mm.
GB 55 Mechanical Properties
Temperature
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GB 55 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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- 393Cross References
- 50Composition
- 90Mechanical Properties
- 4Physical Properties
- 2Heat Treatment
- 29Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- 3Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 255Total Suppliers