Graded Height Tolerance
Graded Height Tolerance = (((# Strands/2)+3.5)/1000) x Graded Factor x Temper Factor
| Graded Factor is for Strand Sizes |
≤
|
0.080 x 0.300” (2.03 x 7.62mm) = 1.0 |
| |
≤
|
0.120 x 0.300” (3.05 x 7.62mm) = 1.5 |
| |
≤
|
0.100 x 0.492“ (2.54 x 12.0mm) = 2.0 |
| |
≤
|
0.120 x 0.492“ (3.05 x 12.0mm) = 2.67 |
| Temper Factor is |
≥ 9W & ≤ 20,000PSI (140N/mm²) = 1.0 |
| |
< 9W & > 20,000PSI (140N/mm²) = 1.2 |