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Nickel Technical Data
Rod and Bar
Tolerance on Diameter or Distance between Parallel Faces |
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Hot Finished Bar and Rod |
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Ordered diameter or distance between
parallel faces (inches) |
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Size |
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Tolerances
(inches) (1)(4) |
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| Plus |
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Minus |
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| Rod and Bar, Hot Finished |
1.000 and Under |
0.016 |
0.016 |
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| 1.001 - 2.000 |
0.031 |
0.016 |
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| 2.001 - 4.000 |
0.047 |
0.031 |
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| Over 4.000 |
0.125 |
0.063 |
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Round Rod, Hot Finished and Rough
Turned or Round Ground |
1.000 and Over |
0.031 |
0.010 |
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| Round Rod, Hot Finished, Semi-Smooth, Machined |
3.501 and Over |
0.031 |
0.000 |
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| Round Rod, Hot Finished, Smooth Finish, Machined |
3.501 and Over |
0.000 |
0.005 (2) |
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| Forging Stock (rounds) |
.999 and Under |
0.005 |
0.010 (3) |
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| 1.000 and Over |
0.031 |
0.010 (3) |
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| Forging Quality Bolt Stock (rounds only) |
1/4, 5/16 |
0.0000 |
0.0062 |
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| 3/8, 7/16, 1/2 |
0.0000 |
0.0066 |
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| 9/16, 5/8, 11/16, 3/4, 13,16, 7/8 |
0.0000 |
0.0082 |
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| 15/16, 1.0 |
0.0000 |
0.0098 |
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1-1/16 to 1-1/2 in 1/16
inch increments |
0.0000 |
0.0112 |
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(1) Tolerances apply to diameter of rounds, to distance between parallel
surfaces for hexagons and squares, and separately to width and thickness
of rectangles.
(3) Spot grinding may be permitted to remove minor surface defects.
The depth of grinding shall not exceed 3 percent of the diameter. |
(2) Permissible variations available as plus 0.005 inch, minus 0; or
plus 0.0025 inch, minus 0.0025 inch.
(4) Areas on the ends of the bar and rod (for approximately 1 inch)
that are under the permissible variations in diameter are permitted provided
the desired finished surface can be obtained within the machining allowance. |
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Cold Drawn Rod and Bar |
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| Ordered diameter or distance between parallel
faces (inches) |
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Tolerances (inches) |
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| Plus |
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Minus |
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| Rounds |
|
.4999 and Under |
0 |
0.003 |
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| .5000 - .9375 |
0 |
0.002 (1) |
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| .9376 - 1.9375 |
0 |
0.003 (1) |
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| 1.9376 - 2.500 |
0 |
0.004 (1) |
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| 2.501 - 3.000 |
0 |
0.005 (1) |
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| 3.001 - 3.500 |
0 |
0.006 (1) |
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| 3.501 - 4.000 |
0 |
0.007 (1) |
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| Hexagons |
2.000 and Under |
0 |
0.009 |
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| (1) For cold drawn, age hardened, bright finish shafting, an additional
minus tolerance of 0.002 inch will be permitted. |
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