Central Steel Supply Company, Marlborough, MA.
Central Steel Supply Company
85 Ames Street
Marlborough, MA 01752
Phone: 800-345-3232 | 508-573-5300
Email: sales@centralsteelsupply.com
Website: www.centralsteelsupply.com
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DOM (Drawn-Over-Mandrel) Round Steel Tube offers high strength, tight tolerances, and a smooth interior finish—ideal for demanding mechanical and structural applications. Available in a variety of dimensions, standard stock lengths, cut-to-length dimensions, and custom part orders.
Pipe and Round Tubes
Unit of Measure
1 2 3 4 5 

Item Name

Nominal Pipe Size (in)

Outside Diameter (in)

Inside Diameter (in)

Wall Thickness (in)

Weight Per Linear Foot (lb)

Material

Grade

Finish

Drawing

3" OD X .120" Wall DOM ROUND TUBE N/A 3 N/A 3 N/A 2.760 N/A 0.120 N/A 3.71 N/A Carbon Steel N/A A513 N/A Bare

3" OD X .188" Wall DOM ROUND TUBE N/A 3 N/A 3 N/A 2.624 N/A 0.188 N/A 5.65 N/A Carbon Steel N/A A513 N/A Bare

3" OD X .250" Wall DOM ROUND TUBE N/A 3 N/A 3 N/A 2.500 N/A 0.250 N/A 7.34 N/A Carbon Steel N/A A513 N/A Bare

3" OD X .375" Wall DOM ROUND TUBE N/A 3 N/A 3 N/A 2.250 N/A 0.375 N/A 10.51 N/A Carbon Steel N/A A513 N/A Bare

3" OD X .438" Wall DOM ROUND TUBE N/A 3 N/A 3 N/A 2.124 N/A 0.438 N/A 12 N/A Carbon Steel N/A A513 N/A Bare

3" OD X .500" Wall DOM ROUND TUBE N/A 3 N/A 3 N/A 2.000 N/A 0.500 N/A 13.38 N/A Carbon Steel N/A A513 N/A Bare

3 1/8" OD X .375" Wall DOM ROUND TUBE N/A 3-1/8 N/A 3.125 N/A 2.375 N/A 0.375 N/A 11.03 N/A Carbon Steel N/A A513 N/A Bare

3 1/4" OD X .120" Wall DOM ROUND TUBE N/A 3-1/4 N/A 3.250 N/A 3.010 N/A 0.120 N/A 4.00 N/A Carbon Steel N/A A513 N/A Bare

3 1/4" OD X .250" Wall DOM ROUND TUBE N/A 3-1/4 N/A 3.250 N/A 2.750 N/A 0.250 N/A 8 N/A Carbon Steel N/A A513 N/A Bare

3 1/2" OD X .095" Wall DOM ROUND TUBE N/A 3-1/2 N/A 3 1/2 N/A 3.310 N/A 0.095 N/A 3.45 N/A Carbon Steel N/A A513 N/A Bare

3 1/2" OD X .250" Wall DOM ROUND TUBE N/A 3-1/2 N/A 3 1/2 N/A 3.000 N/A 0.250 N/A 8.67 N/A Carbon Steel N/A A513 N/A Bare

3 1/2" OD X .375" Wall DOM ROUND TUBE N/A 3-1/2 N/A 3 1/2 N/A 2.750 N/A 0.375 N/A 12.50 N/A Carbon Steel N/A A513 N/A Bare

3 1/2" OD X .500" Wall DOM ROUND TUBE N/A 3-1/2 N/A 3 1/2 N/A 2.500 N/A 0.500 N/A 16.00 N/A Carbon Steel N/A A513 N/A Bare

3 1/2" OD X .500" Wall DOM ROUND TUBE N/A 3-1/2 N/A 3 1/2 N/A 2.000 N/A 0.750 N/A 21.88 N/A Carbon Steel N/A A513 N/A Bare

4" OD X .250" Wall DOM ROUND TUBE N/A 4 N/A 4 N/A 3.500 N/A 0.250 N/A 10.00 N/A Carbon Steel N/A A513 N/A Bare

4" OD X .3125" Wall DOM ROUND TUBE N/A 4 N/A 4 N/A 3.375 N/A 0.3125 N/A 12.32 N/A Carbon Steel N/A A513 N/A Bare

4" OD X .500" Wall DOM ROUND TUBE N/A 4 N/A 4 N/A 3.000 N/A 0.500 N/A 18.60 N/A Carbon Steel N/A A513 N/A Bare

4" OD X .750" Wall DOM ROUND TUBE N/A 4 N/A 4 N/A 2.500 N/A 0.750 N/A 26.00 N/A Carbon Steel N/A A513 N/A Bare

4 1/4" OD X .375" Wall DOM ROUND TUBE N/A 4-1/4 N/A 4.250 N/A 3.500 N/A 0.375 N/A 15.52 N/A Carbon Steel N/A A513 N/A Bare

4 1/2" OD X .250" Wall DOM ROUND TUBE N/A 4-1/2 N/A 4.500 N/A 4.000 N/A 0.250 N/A 11.34 N/A Carbon Steel N/A A513 N/A Bare

5" OD X .120" Wall DOM ROUND TUBE N/A 5 N/A 5.000 N/A 4.760 N/A 0.120 N/A 6.52 N/A Carbon Steel N/A A513 N/A Bare

5" OD X .250" Wall DOM ROUND TUBE N/A 5 N/A 5.000 N/A 4.500 N/A 0.250 N/A 12.68 N/A Carbon Steel N/A A513 N/A Bare

5" OD X .375 Wall DOM ROUND TUBE N/A 5 N/A 5.000 N/A 4.250 N/A 0.375 N/A 18.50 N/A Carbon Steel N/A A513 N/A Bare

5" OD X .500" Wall DOM ROUND TUBE N/A 5 N/A 5.000 N/A 4.000 N/A 0.500 N/A 24.05 N/A Carbon Steel N/A A513 N/A Bare

5 1/2" OD X .188" Wall DOM ROUND TUBE N/A 5-1/2 N/A 5.500 N/A 5.124 N/A 0.188 N/A 10.65 N/A Carbon Steel N/A A513 N/A Bare

Unit of Measure
1 2 3 4 5