1. Scope
1.1 This specification covers several grades, designated T1, T1a, T1b, T2, T11, T12 and T22, of minimum-wall-thickness, electric-resistance-welded, carbon-molybdenum and chromium-molybdenum alloy-steel, boiler and superheater tubes.
1.2 The tubing sizes and thicknesses usually furnished to this specification are 1/2 to 5 in. [12.7 to 127 mm] in outside diameter and 0.035 to 0.320 in. [0.9 to 8.1 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.
1.3 Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4 mm] in thickness.
1.4 An optional supplementary requirement is provided and, when desired, shall be so stated in the order.
1.5 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the "M" designation of this specification is specified in the order.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes
E213 Practice for Ultrasonic Testing of Metal Pipe and Tubing
E273 Practice for Ultrasonic Examination of the Weld Zone of Welded Pipe and Tubing
Keywords
boiler tube; resistance welded steel tube; steel tube, alloy; superheater tube; welded steel tube; Boiler/superheater tubes--specifications; Carbon-molybdenum alloy steel--specifications; Carbon steel tube--specifications; Chromium alloy steel--specifications; Chromium-molybdenum steel--specifications; Class codes (for metals/alloys); Electric-resistance-welded (ERW) steel tube--specifications; Ferritic steel tube--specifications; Resistance-welded steel tube; Superheater tubes--specifications; Welded steel tube--specifications;
ICS Code
DOI: 10.1520/A0250_A0250M-95
ASTM International is a member of CrossRef.
Citing ASTM Standards
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