Alloy Steel T22 Square Tube In India

By Author: chhajed alloys
Total Articles: 34
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As the temperature of ASTM A213 T22 Tube increases there is a drop in the hoop strength of it. This makes the requirement tougher to the manufacturers by forcing them to increase the thickness required to withstand the internal pressure in the tubes. However, beyond a certain range the thickness of the tubes cannot be increased and this makes it obligatory to reform the element of A213 T22 Tubing to accept the increase in temperature. Manufacturer uses materials beginning from carbon steel, to low alloy steel, to high alloy steel, and then to stainless steel to fulfill the demands of the increase in SA213 T22 Tubing as the steam picks up temperature in super heaters. The location where such material transformation demanded is fixed by the manufacturer is based on the margin between the allowable temperature for the SA213 T22 material and the calculated metal temperature at the A213 Gr T22 seamless tube length.
Specification Schedule of Alloy Steel T22 Tubes
Specifications ASTM A/ASME SA 213, A691
Dimensions ASTM, ASME, and API
Size 1/2″ OD up to 5″ OD, customs diameter also available
Outer Diameter 6.2500mm; ...
... WT:1-200mm
Schedule SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type Seamless
Form Round Pipes, Custom Pipes, Square Pipes, Rectangular Pipe, "U" Shape, Hydraulic Pipes
Length Single Random, Double Random & Cut Length.
End Plain End, Beveled End, Treaded
Chemical Properties of Alloy Steel T22 Tubes
Grade C≤ Mn P≤ S≤ Si≤ Mo
T22 0.05~0.15 0.30~0.60 0.025 0.025 0.50~1.0 0.80~1.13
Mechanical Properties of Alloy Steel T22 Tubes
Tensile Strength, MPa Yield Strength, MPa Elongation
415 min 205 min 30 min
Equivalent Standard of Alloy Steel T22 Tubes
Grade UNS Steel Number Trade Name
T22 K21590 1.7380 2¼-1Mo