ASTM A 213 Grade T21 Structural and constructional steels
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ASTM A 213 Grade T21 Chemical Composition
A213/A213M: 2025 / Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
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ASTM A 213 Grade T21 Physical Properties
Temperature
This material has 88 properties — only a subset is shown here.
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ASTM A 213 Grade T21 Heat Treatments
- Full or isothermal anneal, or normalize and temper.
Subcritical annealing or Tempering temperature, min. 675°C (1250°F).
ASTM A 213 Grade T21 Mechanical Properties
Temperature
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ASTM A 213 Grade T21 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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- 23Cross References
- 7Composition
- 18Mechanical Properties
- 3Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- 10Creep
- -Joints
- -Coatings
- 21Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 5Total Suppliers