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Tolerances – Stock Removal

Stock Removal on Formed Parts Should Be
Comparable with the Amounts Shown In These Tables
Hot Rolled Size, in. (mm) Minimum Stock Removal
from the Surface,* In. (mm)
To 1/2 incl. (12.70) 0.030 (0.76)
Over 1/2 to ¾ incl. (12.70 to 19.05) 0.045 (1.14)
Over ¾ to 1 incl. (19.05 to 25.40) 0.060 (1.52)
Over 1 to 1-1/2 incl. (25.40 to 38.10) 0.075 (1.90)
Over 1-1/2 to 2 incl. (38.10 to 50.80) 0.090 (2.29)
Over 2 to 2-1/2 incl. (50.80 to 63.50) 0.125 (3.18)
Over 2-1/2 to 3-1/2 incl. (63.50 to 88.90) 0.156 (3.96)
Over 3-1/2 to 4-1/2 incl. (88.90 to 114.3) 0.187 (4.75)
Over 4-1/2 to 6 incl. (114.3 to 152.4) 0.250 (6.35)
Over 6 to 7-1/2 incl. (152.4 to 190.5) 0.312 (7.92)
Over 7-1/2 to 9 incl. (190.5 to 228.6) 0.375 (9.52)
Over 9 to 10 incl. (228.6 to 254.0) 0.437 (11.10)

*For example, the minimum reduction in diameter ofrounds is twice the minimum stock removal from the surface.

Nonresulfurized steels of this quality are ordinarily furnished with the phosphorus content up to 0.030 per cent and the sulfur content up to 0.035 per cent by cast orheat analysis.

Reference: AISI Steel Products Manual, Alloy, Carbon andHSLA Steels. March, 1986.