ASTM A213 T11 T12 T22 Seamless Boiler Tube
ASTM A213 T22 standard covers seamless ferritic and austenitic steel boiler, superheater and heat exchanger tubes. T22 alloy boiler tube is a kind of 2.25Cr-1Mo low alloy steel. It has high thermal strength, good oxidation resistance, hydrogen corrosion resistance and welding performance. It is widely used in high-temperature equipment such as petrochemical, nuclear power, and power plant boiler systems.
SA213 T22 steel pipe (T22 for short) is a grade in the ASME SA 213/SA 213M standard. It is 2.25Cr-1Mo chromium-molybdenum high-temperature ferritic steel for boilers and superheaters.
Among the Cr-1Mo steel series, its hot strength performance is relatively high. At the same temperature (temperature ≤ 580°C), its creep rupture strength and allowable stress are even higher than 9Cr-1Mo steel, and it has good processing properties.
Therefore, it is widely used in harsh working environments, such as various heating pipes and high-pressure vessels in thermal power and nuclear power, as well as some hydrogen-facing equipment. T22 high-pressure boiler steel pipes are mainly used in superheaters of large-capacity power station boilers such as 300 and 600MW with tube wall temperatures ≤580°C and steam pipes and headers with tube wall temperatures ≤540°C.
ASTM A213 T22 Tubing Equivalent Material
| UNS | ASTM | EN | DIN | JIS | GB |
| K11562 | P22 | 13CrMo44 | 1.7335 | STBA24 | 12Cr2Mo |
Chemical Composition of ASTM A213 T22 Pipe
| Grade | C | Mn | P | S | Si | Cr | Mo |
| Gr T22 | 0.05-0.15 | 0.30-0.60 | ≤0.025 | ≤0.025 | 0.50 | 1.90-2.60 | 0.87-1.13 |
Mechanical properties of ASTM A213 T22 seamless Pipe
| Material | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation(%) | Hardness(HRB) |
| Gr T22 | ≥415 | ≥220 | ≥30 | ≤85 |
Standard Specification For ASTM A213 T22 Tubes
| Specification | ASTM A213 / ASME SA213 |
| Outer Diameter Size | 3/8" NB To 30" NB (Nominal Bore Size) |
| Wall Thickness | Schedule 20 To Schedule XXS (Heavier On Request) Up to 250 mm Thickness |
| Length | Standard length, Double length & In Cut length |
| Pipe Ends | Plain Ends / Beveled Ends / threaded Ends/ Coupling |
| Process | Seamless - Hot Rolled / Cold Drawn |
ASTM A213 T22 Ferritic Alloy-Steel Seamless Boiler Tubes
Packing&Loading:
Normally packed in bundles with strong metal strips;
Bare or with woven bag or pupple film, or put in wooden crate;
If not in bunles, we put pipe in pipe or single pipe,
If pipe length ≤ 5.8m, loaded in 20' container,
If pipe length ≤ 11.8m, loaded in 40' container,
If pipe length > 11.8m, load on board by bulk FILO Terms.
Gnee Packaging and shipping
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