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1.1 This specification covers several grades of carbon and alloy steel seamless mechanical tubing. The grades are listed in . When welding is used for joining the weldable mechanical tube grades, the welding procedure shall be suitable for the grade, the condition of the components, and the intended service.
1.2 This specification covers both seamless hot-finished mechanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3/4 in. (323.8 mm) outside diameter for round tubes with wall thicknesses as required.
1.3 The tubes shall be furnished in the following shapes, as specified by the purchaser: round, square, rectangular, and special sections.
1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.
1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A1040 Guide for Specifying Harmonized Standard Grade Compositions for Wrought Carbon, Low-Alloy, and Alloy Steels
E59 Practice for Sampling Steel and Iron for Determination of Chemical Composition Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.
Military StandardsMIL-STD-163 Steel Mill Products Preparation for Shipment and Storage
Federal StandardFed.Std.No.123 Marking for Shipment (Civil Agencies)
ICS Number Code 23.040.10 (Iron and steel pipes); 23.040.40 (Metal fittings)
UNSPSC Code 40182300(Seamless steel tubes)