ASTM-A250 2009

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A250/A250M-05(2009) Standard Specification for Electric-Resistance-Welded Ferritic Alloy-Steel Boiler and Superheater Tubes

Published By	Publication Date	Number of Pages
ASTM	2009	4

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Categories: 23.040.10 - Iron and steel pipes, ASTM

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Description

ASTM A250/A250M-05-Reapproved2009

Historical Standard: Standard Specification for Electric-Resistance-Welded Ferritic Alloy-Steel Boiler and Superheater Tubes

ASTM A250/A250M

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 ½ 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 for non-destructive examination for certain ASME applications.

1.5 The values stated in either SI units or inch-pound units are to be reaagrded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.5.1 Within the text, the SI units are shown in brackets.

1.5.2 The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

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

ICS Number Code 23.040.10 (Iron and steel pipes)

DOI: 10.1520/A0250_A0250M-05R09

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Ordering Information General Requirements Materials and Manufacture
2	Chemical Composition Mechanical Requirements Sampling TABLE 1 TABLE 2
3	Forming Operations Product Marking Keywords TABLE 3 TABLE 4 TABLE 5

Additional information

Standard Title	A250/A250M-05(2009) Standard Specification for Electric-Resistance-Welded Ferritic Alloy-Steel Boiler and Superheater Tubes
Published Code	ASTM
Publication Date	2009
Pages Count	4
ICS Codes	23.040.10 - Iron and steel pipes