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Mild Steel Electric Welded Rectangular/Square Tube

AED’s Mild Steel Square and Rectangle Tube products are also produced by the “electric-resistance welding” (ERW) process in the round condition, and then formed into a square or rectangular shape. These tubes may occasionally be referred to as Grade 1008-1010. They have excellent weldability and meet ASTM A513, Type 1 and Type 2.

A500 Carbon Structural Steel Tube is the name referred to larger and heavier sizes of square and rectangular steel tube. The tube is also welded in the round condition, and then cold formed into a square or rectangular shape. Grade B is the most common grade available, but in many cases inventory may meet Grade C physicals. Excellent weldability and good machinability are typical for ERW, and they meet ASTM A500.

Typical Mechanical Properties – Electric-Welded and Structural Square & Rectangular Steel Tube:

EW Grade A Structural Grade B Grade C
Tensile Strength (psi) 55,000 45,000 58,000 62,000
Yield Point (psi) 40,000 39,000 46,000 50,000
Elongation (% in 2″) 20 25 23 21
Rockwell Hardness RB60 n/a n/a n/a

Note: “Typical Mechanical Properties” listed in this catalog have been compiled from a variety of sources. Information is deemed reliable, but not guaranteed. Data is provided for information only, NOT FOR DESIGN PURPOSES.

AElectric Welded Rectangular/Square Tube DiagramED stocks ERW steel rectangle and square tubes generally in 20 to 24 foot random lengths in a variety of sizes. Cut pieces available; and other sizes available on request in full lengths.

O.D. IN. WALL THICKNESS WEIGHT/FOOT (LBS)
.375 x .375 .065 .2740
.500 x .500 .065 .3845
.500 x 1.00 .065 .6055
.500 x .1.50 .065 .8060
.750 x .750 .065 .6055
.750 x .750 .083 .7530
1.00 x 1.00 .035 .4593
1.00 x 1.00 .049 .6337
1.00 x 1.00 .065 .8265
1.00 x 1.00 .083 1.035
1.00 x 1.00 .120 1.436
1.00 x 1.50 .065 1.048
1.00 x 1.50 .120 1.844
1.00 x 2.00 .065 1.269
1.00 x 2.00 .083 1.600
1.00 x 2.00 .120 2.252
1.00 x 3.00 .065 1.711
1.00 x 3.00 .120 3.068
1.25 x 1.25 .065 1.047
1.25 x 1.25 .095 1.492
1.25 x 1.25 .120 1.844
1.50 x 1.50 .065 1.268
1.50 x 1.50 .083 1.599
1.50 x 1.50 .095 1.815
1.75 x 1.75 .065 1.490
1.75 x 1.75 .083 1.882
2.00 x 2.00 .065 1.710
2.00 x 2.00 .083 2.164
2.00 x 2.00 .120 3.068
2.00 x 2.00 .187 4.320
2.00 x 2.00 .250 5.410
2.00 x 3.00 .083 2.728
2.00 x 3.00 .120 3.884
2.00 x 4.00 .120 4.700
2.00 x 4.00 .188 6.870
3.00 x 4.00 .125 5.516
4.00 x 4.00 .250 12.210