Welded Stainless Steel Mechanical Tubing
Overview
1.1 This specification covers welded stainless steel tubing for
mechanical applications where appearance, mechanical properties, or
corrosion resistance is needed.
1.2 This specification covers as-welded or cold-reduced mechanical
tubing in sizes to 16 in. (406.4 mm) outside diameter, inclusive
(for round tubing) and in wall thicknesses 0.020 in. (0.51 mm) and
over.
1.3 Tubes shall be furnished in one of the following shapes as
specified by the purchaser: round, square, rectangular, or special.
1.4 Supplementary requirements of an optional nature are provided and
when desired shall be so stated in the order.
1.5 Values stated in inch-pound units, in accordance with the
specifications, are to be regarded as the standard.
Tube Gauge for ASTM A554 
Round
| O.D./In. | Wall/In. | Wt./Ft. | | .500 | .049 | .236 | | .625 | .035 | .221 | | .750 | .065 | .476 | | .875 | .035 | .314 | | 1.000 | .049 | .498 | | 1.000 | .065 | .649 | | 1.000 | .083 | .813 | | 1.250 | .049 | .629 | | 1.250 | .065 | .823 | | 1.500 | .035 | .548 | | 1.500 | .065 | .996 |
| | O.D./In. | Wall/In. | Wt./Ft. | | 1.625 | .065 | 1.083 | | 1.750 | .035 | .641 | | 1.750 | .120 | 2.090 | | 1.875 | .049 | .956 | | 2.000 | .035 | .735 | | 2.000 | .049 | 1.021 | | 2.000 | .065 | 1.343 | | 2.250 | .049 | 1.152 | | 2.500 | .049 | 1.283 | | 3.000 | .065 | 2.030 | | 4.000 | .065 | 2.730 |
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Tube Gauge for ASTM A554 
Square
| O.D./In. | Wall/In. | Wt./Ft. | | .750 x .750 | .065 | .605 | | .750 x .750 | .120 | 1.028 | | 1.000 x 1.000 | .049 | .634 | | 1.000 x 1.000 | .065 | .827 | | 1.000 x 1.000 | .083 | 1.035 | | 1.000 x 1.000 | .120 | 1.436 | | 1.250 x 1.250 | .065 | 1.047 | | 1.250 x 1.250 | .083 | 1.317 | | 1.250 x 1.250 | .120 | 1.844 | | 1.500 x 1.500 | .065 | 1.268 | | 1.500 x 1.500 | .083 | 1.599 | | 1.500 x 1.500 | .120 | 2.252 | | 1.500 x 1.500 | .180 | 3.230 | | 1.750 x 1.750 | .120 | 2.660 | | 2.000 x 2.000 | .065 | 1.710 | | 2.000 x 2.000 | .083 | 2.164 | | 2.000 x 2.000 | .120 | 3.050 | | 2.000 x 2.000 | .180 | 4.136 | | 2.000 x 2.000 | .250 | 5.410 |
| | O.D./In. | Wall/In. | Wt./Ft. | | 2.500 x 2.500 | .083 | 2.730 | | 2.500 x 2.500 | .120 | 3.900 | | 2.500 x 2.500 | .180 | 5.352 | | 3.000 x 3.000 | .083 | 3.290 | | 3.000 x 3.000 | .109 | 4.250 | | 3.000 x 3.000 | .120 | 4.750 | | 3.000 x 3.000 | .180 | 6.578 | | 3.000 x 3.000 | .250 | 8.810 | | 4.000 x 4.000 | .120 | 6.460 | | 4.000 x 4.000 | .180 | 9.351 | | 4.000 x 4.000 | .250 | 12.210 | | 5.000 x 5.000 | .250 | 16.350 | | 6.000 x 6.000 | .250 | 19.020 | | 6.000 x 6.000 | .375 | 27.120 | | 6.000 x 6.000 | .500 | 38.123 | | 8.000 x 8.000 | .250 | 26.528 | | 8.000 x 8.000 | .375 | 39.291 | | 8.000 x 8.000 | .500 | 51.721 |
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Tube Gauge for ASTM A554 
Rectangular
| O.D./In. | Wall/In. | Wt./Ft. | | .750 x 1.500 | .065 | .937 | | 1.000 x 1.500 | .083 | 1.317 | | 1.000 x 2.000 | .065 | 1.270 | | 1.000 x 2.000 | .120 | 2.252 | | 1.000 x 3.000 | .065 | 1.710 | | 1.500 x 2.500 | .065 | 1.710 | | 1.500 x 3.000 | .120 | 3.480 | | 2.000 x 3.000 | .120 | 3.900 | | 2.000 x 3.000 | .180 | 5.352 |
| | O.D./In. | Wall/In. | Wt./Ft. | | 2.000 x 4.000 | .120 | 4.750 | | 2.000 x 4.000 | .180 | 6.578 | | 2.000 x 4.000 | .250 | 8.810 | | 2.000 x 5.000 | .180 | 8.060 | | 2.000 x 6.000 | .180 | 9.420 | | 2.000 x 6.000 | .250 | 12.210 | | 3.000 x 4.000 | .120 | 5.610 | | 4.000 x 6.000 | .180 | 11.900 | | 4.000 x 6.000 | .250 | 15.620 | | 4.000 x 6.000 | .375 | 23.994 | | 4.000 x 6.000 | .500 | 31.324 |
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