Twist tolerance
Twist tolerance for square, hexagonal and flat bars EN13601
| Specified width, mm | Maximum permissible twist v, mm | ||
|---|---|---|---|
| over | up to and including | in any 1 m length | over total length L (in m) |
| 10a | 18 | 1 | 1,0 × L |
| 18 | 30 | 1.5 | 1,5 × L |
| 30 | 50 | 2 | 2,0 × L |
| 50 | 80 | 3 | 3,0 × L |
| 80 | 120 | 4.5 | 4,5 × L |
| 120 | 200 | 6 | 6,0 × L |
| a - Including 10. | |||
Bar twist v is measured as shown in the drawing
where:
1 - Reference plane
a - Thickness
b - Width
v - Twist