Material of HB Hardness and R m Strength [MPa] |
Type of Torsion Load |
Values of Allowable Stresses τ At [MPa] |
145< HB< 250 |
constant |
40 |
500< Rm< 850 |
repeating |
28 |
- |
alternating |
20 |
250< HB< 350 |
constant |
56 |
850< Rm< 1200 |
repeating |
40 |
- |
alternating |
28 |
HB> 350 |
constant |
80 |
Rm> 1200 |
repeating |
56 |
- |
alternating |
40 |