Nedschroef Corporation stocks quenched and tempered Round Bar in 12 foot lengths and a wide range of diameters, meeting the requirements of the ASTM A193, A320, and A453 standards. Various grades of Round Bar are on the shelf for applications requiring high strength, good low-temperature impact resistance, or high strength in a corrosive environment. Typical end-uses for this Round Bar include bolting material in pressure vessels, valves, flanges, and fittings for high temperature service.

ASTM A193 Round Bar Grade B7
This Chrome-Moly carbon steel alloy has a minimum tensile strength of 125,000 psi and is the workhouse material for manufacturers of high temperature stud bolts.

ASTM A193 Round Bar Grade B16
This oil quenched Chrome-Moly-Vanadium carbon steel alloy has a minimum tensile strength of 125,000 psi and exhibits properties of high fatigue and wear strength. This Round Bar grade has good mechanical properties in elevated temperature environments.

ASTM A320 Round Bar Grade L7
This Round Bar grade has all the performance characteristics of ASTM A193 Round Bar Grade B7 with the additional property of enhanced low temperature impact strength.

ASTM A453 Grade 660B Nominal Round Bar 
Alloy Steel round Bar in pitch and full size diameters plus Grade 660B nominal bar for high performance commercial and specialty fasteners.