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Specialist in ASME SA213 T11 Alloy Steel Seamless Tube

ASME SA213 T11 Alloy Steel Seamless Tube

Typically the ASTM A213 Gr T11 Tube Material is a ferritic steel grade whose basic composition contains chromium as well as molybdenum in its alloy. The addition of these elements in the SA213 T11 Seamless Alloy Tube is what makes them resilient to heat and hence they can be used in high temperature environments. Further, the creep strength of the alloy is also higher on account of the additions of these two elements in the A213 T11 Material.

ASME SA213 T11 Alloy Steel Seamless Tube

Producing a seamless type of T11 Boiler Tube with this alloy could be done either by hot finishing or by cold finishing. Apart from being subjected to either a nondestructive electric test or a hydrostatic test, these ASTM A213 T11 Tubes are to be subjected to many other tests such as Tension test, flattening test, hardness test, and flaring test as well. Due to their good performance with regards to their heat resisting behaviour in addition to good creep strength, is why the SA213 T11 Tubes is used in applications involving steel boiler, superheater, along with being used in heat exchanger tubes.

Specification of ASME SA213 T11 Tube

Size (Seamless) 6.35mm o.d to 101.60mm o.d
Standards ASTM A213, ASME SA213
Equivalent Standards EN 10216-2, ASTM A335, GOST 550-75
Outer Dimensions 6-2500mm; WT:1-200mm
Wall Thickness Schedule 3mm to 15mm.
Length max 1~12m
Type Seamless
Specialized in Large Diameter Size
Schedule STD, SCH40, SCH80
Form Round, Rectangular, Hydraulic, Square, Etc.
Length Double Random & Cut Length, Single Random.
Tubing End Beveled End, Plain End, Treaded.

Value Added Info

ASME SA213 T11 is a Seamless ferritic low alloy steel boiler tube which is used in super heater elements, and heat exchangers. ASTM A213 T11 is available in hot finished & cold drawn forms and has a maximum hardness of 85 HRB.

Outside Diameter and Tolerance of SA213 T22 Tube

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

Chemical Structure of T11 Alloy Steel Seamless Tube


Mechanical Behaviour of ASTM A213 T22 Tube

Grade Tensile Strength, MPa Yield Strength, MPa Elongation, % Hardness, HB
T11 415 min 205 min 30 min 179 max

Equivalent material of T22 Boiler Tube

Trade Name 



Heater Tubes

1 1/4 Chrome 



A213 / SA213

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