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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ERW Round Steel Tube is produced with precision and strength through electric resistance welding, making it ideal for structural and mechanical use. Available in a variety of dimensions, standard stock lengths, cut-to-length sizes, and custom part orders.
Pipe and Round Tubes
Unit of Measure
1 2 

Item Name

Nominal Pipe Size (in)

Outside Diameter (in)

Inside Diameter (in)

Wall Thickness (in)

Weight Per Linear Foot (lb)

Material

Grade

Finish

Drawing

4 1/2" OD X .375" Wall HR ROUND TUBE (ERW) N/A 4-1/2 N/A 4.500 N/A 3.750 N/A 0.375 N/A 16.53 N/A Carbon Steel N/A A500 A513 N/A Bare Hot Rolled (HR)

5" OD X .250" Wall HR ROUND TUBE (ERW) 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 A500 A513 N/A Bare Hot Rolled (HR)

5" OD X .375" Wall HR ROUND TUBE (ERW) N/A 5 N/A 5.000 N/A 4.250 N/A 0.375 N/A 18.52 N/A Carbon Steel N/A A500 A513 N/A Bare Hot Rolled (HR)

6" OD X .120" Wall HR ROUND TUBE (ERW) N/A 6 N/A 6.000 N/A 5.760 N/A 0.120 N/A 7.54 N/A Carbon Steel N/A A500 A513 N/A Bare Hot Rolled (HR)

6" OD X .188" Wall HR ROUND TUBE (ERW) N/A 6 N/A 6.000 N/A 5.624 N/A 0.188 N/A 11.67 N/A Carbon Steel N/A A500 A513 N/A Bare Hot Rolled (HR)

7" OD X .500" Wall HR ROUND TUBE (ERW) N/A 7 N/A 7.000 N/A 6.000 N/A 0.500 N/A 34.70 N/A Carbon Steel N/A A500 A513 N/A Bare Hot Rolled (HR)

7 1/2" OD X .375" Wall HR ROUND TUBE (ERW) N/A 7-1/2 N/A 7.500 N/A 6.750 N/A 0.375 N/A 28.53 N/A Carbon Steel N/A A500 A513 N/A Bare Hot Rolled (HR)

Unit of Measure
1 2