Hot roll tolerances

Alloy steel, rounds and squares

Specified size

Permissible variation from specified size

Over Under
To 5/16, inclusive .005 .005
Over 5/16 to 7/16, incl. .006 .006
Over 7/16 to 5/8, incl. .007 .007
Over 5/8 to 7/8, incl. .008 .008
Over 7/8 to 1, incl. .009 .009
Over 1 to 1 1/8, incl. .010 .010
Over 1 1/8 to 1 1/4, incl. .011 .011
Over 1 1/4 to 1 3/8, incl. .012 .012
Over 1 3/8 to 1 1/2, incl. .014 .014
Over 1 1/2 to 2, incl. 1/64 1/64
Over 2 to 2 1/2, incl. 1/32 0
Over 2 1/2 to 3 1/2, incl. 3/64 0
Over 3 1/2 to 4 1/2, incl. 1/16 0
Over 4 1/2 to 5 1/2, incl. 5/64 0
Over 5 1/2 to 6 1/2, incl. 1/8 0
Over 6 1/2 to 8 1/4, incl. 5/32 0
Over 8 1/4 to 9 1/2, incl. 3/16 0

 

Carbon steel, rounds and squares

Specified size

Permissible variation from specified size

Over Under
To 5/16, inclusive .005 .005
Over 5/16 to 7/16, incl. .006 .006
Over 7/16 to 5/8, incl. .007 .007
Over 5/8 to 7/8, incl. .008 .008
Over 7/8 to 1, incl. .009 .009
Over 1 to 1 1/8, incl. .010 .010
Over 1 1/8 to 1 1/4, incl. .011 .011
Over 1 1/4 to 1 3/8, incl. .012 .012
Over 1 3/8 to 1 1/2, incl. .014 .014
Over 1 1/2 to 2, incl. 1/64 1/64
Over 2 to 2 1/2, incl. 1/32 0
Over 2 1/2 to 3 1/2, incl. 3/64 0
Over 3 1/2 to 4 1/2, incl. 1/16 0
Over 4 1/2 to 5 1/2, incl. 5/64 0
Over 5 1/2 to 6 1/2, incl. 1/8 0
Over 6 1/2 to 8 1/4, incl. 5/32 0
Over 8 1/4 to 9 1/2, incl. 3/16 0
Over 9 1/2 to 10, incl. 1/4 0

Per ASTM A29

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