ASTM B392:
Dimensional Tolerances for Nb and Nb Alloys
Rolled, Swagged or Drawn Rod and Wire |
| Diameter in. (mm) |
Tolerance, plus and minus in. (mm) |
| 0.010 to 0.020 excl (0.25 to 0.51) |
0.0003 (0.0076) |
| 0.020 to 0.030 excl (0.51 to 0.76) |
0.00075 (0.019) |
| 0.030 to 0.060 excl (0.76 to 1.52) |
0.001 (0.025) |
| 0.060 to 0.090 excl (1.52 to 2.29) |
0.0015 (0.038) |
| 0.090 to 0.125 excl (2.29 to 3.18) |
0.002 (0.051) |
| 0.125 to 0.187 excl (3.18 to 4.75) |
0.003 (0.076) |
| 0.187 to 0.375 excl ( 4.75 to 9.53) |
0.004 (0.102) |
| 0.375 to 0.500 excl (9.53 to 12.7) |
0.005 (0.127) |
| 0.500 to 0.625 excl (12.7 to 15.9) |
0.007 (0.178) |
| 0.625 to 0.750 excl (15.9 to 19.1) |
0.008 (0.203) |
| 0.750 to 1.000 excl (19.1 to 25.4) |
0.010 (0.254) |
| 1.000 to 1.500 excl (25.4 to 38.1) |
0.015 (0.381) |
| 1.500 to 2.000 excl (38.1 to 50.8) |
0.020 (0.508) |
| 2.000 to 2.500 excl (50.8 to 63.5) |
0.030 (0.762) |
