TUBING & PIPE

E.R.W. (ELECTRIC RESISTANCE WELD)
COLD DRAWN SEAMLESS (CDS)
D.O.M. (DRAWN-OVER-MANDREL)
HOT FINISHED SEAMLESS (HFS)
ERW - Electric Resistance Weld
CDS - Cold Drawn Seamless
DOM - Drawn Over Mandrel
HFS - Hot Finished Seamless
20' - ERW
x - Stock Size
17' - 24' Random Lengths DOM/CDS
12' - 24' - HFS
Outside
Wall Inside
Dimension (OD) Thickness Diameter Weight
& Gage (inches) Dec-In. (ID) (lbs./ft.) ERW CDS DOM HFS
7 OD
1/2 0.500 6.000 34.7100 - - X -
5/8 0.625 5.750 42.5500 - - X -
3/4 0.750 5.500 50.0600 - X - -
7/8 0.875 5.250 57.2300 - - - -
1 1.000 5.000 64.0800 - X - -
1-1/4 1.250 4.500 76.9000 - - - X
1-1/2 1.500 4.000 88.1100 - - - X
2 2.000 3.000 106.8000 - - - X
7-1/4 OD
3/16 0.188 6.874 14.1790 - - - -
1/4 0.250 6.750 18.6900 - - X -
3/8 0.375 6.500 27.5300 - - X -
1/2 0.500 6.250 36.0500 - - - -
5/8 0.625 6.000 44.2200 - - - -
3/4 0.750 5.750 52.0700 - - - -
7/8 0.875 5.500 59.5700 - - - -
1 1.000 5.250 66.7500 - - - -
7-1/2 OD
1/4 0.250 7.000 19.3600 - - X -
3/8 0.375 6.750 28.5400 - - X -
1/2 0.500 6.500 37.3800 - - X -
5/8 0.625 6.250 45.8900 - - X -
3/4 0.750 6.000 54.0700 - - - X
1 1.000 5.500 69.4200 - - - -
1-1/8 1.125 5.250 57.2300 - - - -
1-1/4 1.250 5.000 83.4400 - - - -
1-1/2 1.500 4.500 96.1200 - - - X
2 2.000 3.500 117.5000 - - - -
7-5/8 OD
1/2 0.500 6.625 38.0500 - - - -
7/8 0.875 5.875 63.0800 - - - -
1 1.000 5.625 70.7600 - - - -
7-3/4 OD
1/4 0.250 7.250 20.0300 - - X -
3/8 0.375 7.000 29.5400 - - X -
1/2 0.500 6.750 38.7200 - - X -
5/8 0.625 6.500 47.5600 - - X -
3/4 0.750 6.250 56.0600 - - - -
7/8 0.875 6.000 64.2500 - - - -
1 1.000 5.750 72.0900 - - - -
Drawn over Mandrel (DOM) tubing is defined by 3 different dimensions:
• Inside Diameter (ID) • Outside Diameter (OD) • Wall Thickness
When ordering, only 2 of the 3 tolerances must be defined. Alro Steel purchases
DOM tubing, for general inventory, to the outside diameter and inside diameter.
7-34
If you do not see a size listed, please contact your Alro representative.
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