Stainless Steel Rounds

National Specialty Alloys, Inc. carries Stainless Steel Rounds in austenitic and martensitic Stainless Steels in lengths from 12'-28' in alloy grades ranging from 303, 304/304L, 309, 310, 316, 316/316L, 317/317L, 400, 410, 410 H.T., 416, 416 H.T., 15-5 PH, 17-4 PH, 17-4-PH H.T., XM-19, XM-19HS as well as Duplex and Super Duplex grades. Request a quote online today »

Round Bar Tolerances

Specified Size	Over	Under	Out-of-Round/Square
Over 5/16 to 7/16 incl.	0.006	0.006	0.009
Over 7/16 to 5/8 incl.	0.007	0.007	0.010
Over 5/8 to 7/8 incl.	0.008	0.008	0.012

Over 7/8 to 1 incl.	0.009	0.009	0.013
Over 1 to 1-1/8 incl.	0.010	0.010	0.015
Over 1-1/8 to 1-1/4 incl.	0.011	0.011	0.016

Over 1-1/4 to 1-3/8 incl.	0.012	0.012	0.018
Over 1-3/8 to 1-1/2 incl.	0.014	0.014	0.021
Over 1-1/2 to 2 incl.	1/64	1/64	0.023

Over 2 to 2-1/2 incl.	1/32	0	0.023
Over 2-1/2 to 3-1/2 incl.	3/64	0	0.035
Over 3-1/2 to 4-1/2 incl.	1/16	0	0.046

Over 4-1/2 to 5-1/2 incl.	5/64	0	0.058
Over 5-1/2 to 6-1/2 incl.	1/8	0	0.070
Over 6-1/2 to 8 incl.	5/32	0	0.085

Straightness Tolerances
Hot Finished: 1/8 inch in any 5 feet, but may not exceed 1/8 x (no. of feet in length)/5
Cold Finished: 1/16 inch in any 5 feet, but may not exceed 1/16 x (no. of feet in length)/5

Custom tolerances unique to your application upon request

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Super Duplex 2507 UNS-S32750 ASTM A-479 round bar.

Custom tolerances unique to your application available

Round Bar

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