ASME SA209 T1 pipe is a high-pressure boiler pipe produced in accordance with ASME standards.
T1 pipes are mainly used for high-temperature pressure-bearing components such as boilers, superheaters, reheaters, economizers, headers, and steam pipes. The steel pipe has good high-temperature performance, corrosion resistance and high strength. It can maintain stable mechanical properties and oxidation resistance at high temperatures and is suitable for high-temperature and high-pressure working environments.
Chemical Composition (%):
| Grade | C | Si | Mn | P | S | Mo | Cr |
| T1 | 0.10-0.20 | 0.10-0.50 | 0.30-0.80 | ≤0.025 | ≤0.025 | 0.44-0.65 | / |
| T1a | 0.15-0.25 | 0.10-0.50 | 0.30-0.80 | ≤0.025 | ≤0.025 | 0.44-0.65 | / |
| T1b | 0.14max | 0.10-0.50 | 0.30-0.80 | ≤0.025 | ≤0.025 | 0.44-0.65 | / |
All Mechanical Properties
Tensile Requirements and Hardness:
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Mechanical Properties |
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| Grade | Tensile | Yield | Elongation | Hardness |
| Strength (Mpa) | Strength (Mpa) | (%) | (HRB) | |
| T1 | ≥380 | ≥205 | ≥30 | ≤80 |
| T1a | ≥365 | ≥195 | ≥30 | ≤81 |
| T1b | ≥415 | ≥220 | ≥30 | ≤77 |
Flattening Test – One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.
Flaring Test – One flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot.
