ASME ASTM Standard
Boiler Tube
Standard
ASTM A213
Application
It is used for boiler and superheater min wall thickness seamless ferrite and austenitic steel tube and heat exchanger austenitic steel tube.
Main Steel Tube Grades
A213 T11, A213T12, A213 T22 etc.
Other grades can also be provided after consulting with customers.
Chemical Composition
| Standard | Grade | Chemical Composition % | |||||
| C | Si | Mn | P, S | Cr | Mo | ||
| ASTM A213 | T11 | 0.05-0.15 | 0.50-1.00 | 0.30-0.60 | ≤0.025 | 1.00-1.50 | 0.44-0.65 |
| T12 | 0.05-0.15 | ≤0.50 | 0.30-0.61 | ≤0.025 | 0.80-1.25 | 0.44-0.65 | |
| T22 | 0.05-0.15 | ≤0.50 | 0.30-0.60 | ≤0.025 | 1.90-2.60 | 0.87-1.13 | |
| T91 | 0.08-0.12 | 0.20-0.50 | 0.30-0.60 | ≤0.020 | 8.00-9.50 | 0.85-1.05 | |
Mechanical Properties
| Standard | Grade | Mechanical Properties | ||
| Tensile Strength MPa | Yield Strength MPa | Elongation % | ||
| ASTM A213 | T11 | ≥415 | ≥170 | ≥30 |
| T12 | ≥415 | ≥205 | ≥30 | |
| T22 | ≥415 | ≥205 | ≥30 | |
| T91 | ≥585 | ≥415 | ≥20 | |
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