1.1 This specification covers electric-resistance-welded carbon and alloy steel tubing for use as mechanical tubing.
1.2 This specification covers mechanical tubing made from hot- or cold-rolled steel.
1.3 This specification covers round, square, rectangular, and special shape tubing.
| Type | Size Range (Round Tubing) |
| Electric-Resistance-Welded Tubing from Hot-Rolled Steel | outside diameter from ½ to 15 in. (19.0 to 381.0 mm) |
| wall from 0.065 to 0.650 in. (1.65 to 16.50 mm) | |
| Electric-Resistance-Welded Tubing from Cold-Rolled Steel | outside diameter from 3/8to 12 in. (9.92 to 304.8 mm) |
| wall from 0.022 to 0.134 in. (0.71 to 3.40 mm) |
1.4 Optional supplementary requirements 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 standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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