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
Dimension (OD)
& Gage (inches)
Wall
Thickness
Dec-In.
Inside
Diameter
(ID)
Weight
(lbs./ft.) ERW CDS DOM HFS
8-3/4 OD
7/8 0.875 7.000 73.6000 - - - -
1 1.000 6.750 82.7700 - - - -
1-1/4 1.250 6.250 100.1300 - - - -
1-1/2 1.500 5.750 116.1100 - - - -
9 OD
1/4 0.250 8.500 23.3600 - - X -
3/8 0.375 8.250 34.5400 - - X -
1/2 0.500 8.000 45.3900 - - X -
3/4 0.750 7.500 66.0800 - - - -
7/8 0.875 7.250 75.9200 - - - -
1 1.000 7.000 85.4400 - - - X
1-1/4 1.250 6.500 103.5000 - - - -
1-1/2 1.500 6.000 120.5000 - - - X
2 2.000 5.000 149.7000 - - - X
2-1/2 2.500 4.000 173.5500 - - - -
3 3.000 3.000 192.2400 - - - -
9-1/4 OD
1/2 0.500 8.250 46.7300 - - - -
3/4 0.750 7.750 68.0900 - - - -
1 1.000 7.250 88.1100 - - - -
1-1/2 1.500 6.250 124.2000 - - - -
9-1/2 OD
1/4 0.250 9.000 24.6980 - - X -
3/8 0.375 8.750 36.5500 - - - -
1/2 0.500 8.500 48.0600 - - X -
1 1.000 7.500 90.7800 - - - -
1-1/8 1.125 7.250 100.8000 - - - -
1-1/4 1.250 7.000 110.1000 - - - -
1-1/2 1.500 6.500 128.2000 - - - -
2 2.000 5.500 160.2000 - - - -
2-1/2 2.500 4.500 186.9000 - - - -
9-3/4 OD
1/4 0.250 9.250 25.3700 - - - -
3/8 0.375 9.000 37.5500 - - - -
3/4 0.750 8.250 72.0900 - - - -
1 1.000 7.750 93.4500 - - - -
1-1/2 1.500 6.750 132.2000 - - - -
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.
If you do not see a size listed, please contact your Alro representative.
7-36
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