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The ASTM A213/A213M standards, which outline the specifications for seamless boiler, superheater, and heat-exchanger tubes made of ferritic and austenitic alloy steel, are generally followed in the production of T12 tubes. High temperatures are applied to the alloy steel throughout the manufacturing process, and then the tubes are formed by rolling or extrusion. After that, in order to make sure the tubes fulfill the necessary standards, they undergo a variety of tests, such as non-destructive testing, mechanical property assessments, and dimensional inspections. The steel has been alloyed with 1% molybdenum and 2.25% chromium to increase its resistance to thermal fatigue and to increase its strength at high temperatures. T22 is a recommended material in industries where equipment is subjected to high temperatures and harsh conditions because of the composition of this alloy. It is sufficiently ductile and shows good tensile strength and hardness.
T22 tubes are manufactured using various methods including hot rolling and cold drawing, with the final product being used in applications like superheaters, reheaters, and other critical high-temperature components. The manufacturing process typically involves stringent quality control to ensure that the material meets the required specifications for high-pressure and high-temperature service.
T22 tubes' resilience to high-temperature steam settings without suffering appreciable degradation is one of their main features. Because of this, they are the best option for petrochemical and power production applications where durability and dependability are crucial. T22 is very easily welded, making it a useful material for intricate pipe systems.
Tube Specification : ASTM A213 / ASME SA213
Size : 1/2" NB To 36" NB
Outside Diameter (OD) : 19.05mm – 114.3mm
Wall Thickness : 2.0mm – 14 mm
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type : Seamless / EFW / Cold Drawn / Annealed & Pickled / Hot Finished / Extruded / Structural
Form : Round Tubes
Length : Single Random, Double Random & Cut Length
End : Plain End, Beveled End, Threaded
End Protection : Plastic Caps
Finish : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Origin : Indian Origin, European Origin, Japanese Origin
Testing and Documents : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
Packing : Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests
A Wide Range of ASTM A213 T22 Alloy Steel Tubes at Best Price.
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GRADE | UNS | TRADE NAME |
T22 | K21590 | 2 1/4 Chrome |
C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % |
0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 max | 0.50 max | 1.90-2.60 | 0.87-1.13 |
Tensile Strength, MPa | Yield Strength, MPa | Elongation, % | Hardness, HB |
415 min | 205 min | 30 min | 163 max |
Outside Diameter | OD Tolerance | WT Tolerance | Ovality Tolerance | Cut Length Tolerance |
OD≤ 12, 7 mm | ± 0, 13 mm | ± 15 % | – | + 3, 18 mm, – 0 mm |
12, 7 mm < OD ≤ 38, 1 mm | ± 0, 13 mm | ± 10 % | max, 1, 65 mm | + 3, 18 mm, – 0 mm |
38, 1 mm < OD ≤ 88, 9 mm | ± 0, 25 mm | ± 10 % | max, 2, 41 mm | + 4, 76 mm, – 0 mm |
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