Skip to main content

Stainless Seamless Mechanical Tubing

The most comprehensive hollow bar inventory available within the United States

Dover Tubular Alloys offers both Cold Drawn and Hot Extruded Seamless Mechanical Tubing / Hollow Bar. 

Our company inventories material produced by the leading Domestic, DFARS, AML, and Import mills throughout the world. We maintain and extensive assortment of Outer Diameter (OD), Inner Diameter (ID), and Wall combinations to ensure that you can offer a stock size closest to your customer’s finished dimensions. The breadth and depth of our hollow bar inventory will help you generate significant cost-savings by reducing machining costs, scrap loss, and time. 

Product Range

OD Range: 1/2″ to 18″

Wall Range: 0.188″ to 2.000″

Product Grades

304/L (UNS S30400/S30403)

316/L (UNS S31600/S31603)

Specifications & Compliance

ASTM A269 / ASTM A511 / ASTM A479 (Chem & Mech Only)

ASME SA479 (Chem & Mech Only) 

NACE MR0103/MR0175 / PED / RoHS / ISO / EN10204 3.1

Same-day and next day cutting available for all hollow bar sizes — reducing time and cost for your customers