ASTM A213 T92
ASTM A213 T92 - seamless steel tube
SA213T9 is a Seamless ferritic low alloy steel boiler tube used in super heater elements, and heat exchangers.
Download PDFThese tubes are known for their high strength, corrosion resistance, and excellent performance in high-temperature environments.
T9 and P9 steel pipe are included in ASTM or ASME suited for boiler superheater, reheater pipe, header and steam pipe under 600℃ in high pressure, ultra-high pressure and subcritical power station, nuclear power heat exchanger and oil cracking unit furnace pipe.
Both of them contain 9-Chromium-1 Molybdenum alloy, which offers very good corrosion resistance and oxidation resistance with good high-temperature strength. Grade T9 specified in ASTM A213 which does Ferrite and Austenitic boiler superheater and heat exchanger seamless steel tube.
| UNS | ASTM | EN | DIN | JIS | GB |
|---|---|---|---|---|---|
| K50400 | P9 | 12Cr9Mo | X12CrMo91 | STBA26 | / |
| Grade | C | Mn | P | S | Si | Cr | Mo |
|---|---|---|---|---|---|---|---|
| T9 | ≤0.15 | 0.30-0.60 | ≤0.025 | ≤0.025 | 0.25-1.00 | 8.00-10.0 | 0.9-1.1 |
| Material | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation(%) | Hardness(HRB) |
|---|---|---|---|---|
| T9 | ≥415 | ≥205 | ≥30 | ≤85 |
These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements. ASTM A213 T9 tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified. Grade TP347HFG shall be cold finished. Heat treatment shall be done separately and in addition to heating for hot forming. The ferritic alloy and ferritic stainless steels shall be reheated. On the other hand, austenitic stainless steel tubes shall be furnished in the heat-treated condition. Alternatively, immediately after hot forming, while the temperature of the tubes is not less than the minimum solution temperature, tubes may be individually quenched in water or rapidly cooled by other means. Tension test, hardness test, flattening test, and flaring test shall be done to each tube. Also, each tube shall be subjected to the nondestructive electric test or hydrostatic test.
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| Condition | Typical Application |
|---|---|
| High Temperature | Boilers, superheaters, steam headers |
| Low Temperature | Cryogenic processing systems |
| High Pressure | Power & process piping |
| Corrosive Media | Chemical & petrochemical plants |
| Creep Service | Thermal power stations |
| Product | Specification |
|---|---|
| Seamless Pipes | ASTM A335 P1 / P5 / P9 / P11 / P22 / P91 |
| Butt Weld Fittings | ASTM A234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91 |
| Forged Fittings & Flanges | ASTM A182 F1 / F5 / F9 / F11 / F22 / F91 |
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