ASTM A209 T1 Alloy Steel Boiler Pipe
What is SA209 T1A seamless pipe?
SA209 T1A tubing is a carbon molybdenum alloy steel Seamless Tubing used in boilers, boiler flues, super heaters.
A209 alloy pipe is an American standard alloy steel pipe. It not only has high oxidation resistance and high temperature steam corrosion resistance, but also has good impact toughness, high and stable long-lasting plasticity and thermal strength properties.
When the service temperature is lower than 620°C, the allowable stress of A209 alloy boiler tube is higher than that of austenitic stainless steel.
A209 seamless boiler tubes are mainly used for super boiler tubes, high-temperature superheaters, reheater steel tubes, high-temperature headers and steam pipelines, and can also be used as nuclear power heat exchangers and petroleum cracking unit furnace tubes.
Chemical Composition Of ASTM A209 Grade T1 pipe
| Element | Composition, % |
| Grade T1 | |
| Carbon | 0.10–0.20 |
| Manganese | 0.30–0.80 |
| Phosphorus, max | 0.025 |
| Sulfur, max | 0.025 |
| Silicon | 0.10–0.50 |
| Molybdenum | 0.44–0.65 |
Tolerances of Length
| Method of Manufacture |
Specified Outside Diameter, in.[mm] |
Cut Length, in. [mm] | |
| Over | Under | ||
| Seamless, hot-finished | All sizes | 3 ⁄ 16 [5] | 0 [0] |
| Seamless, cold-finished | Under 2 [50.8] | 1 ⁄ 8 [3] | 0 [0] |
| 2 [50.8] or over | 3 ⁄ 16 [5] | 0 [0] | |
| 2 [50.8] or over | 3 ⁄ 16 [5] | 0 [0] | |
High pressure heat resistant alloy pipe
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