Grades of cover | Tensile strength/Mpa | Elongation at break% | Abrasion/mm³ |
L | 15 | 350 | 200 |
D | 18 | 400 | 100 |
H | 24 | 450 | 120 |
H1 | 25 | 450 | 90 |
H2 | 28 | 450 | 90 |
H3 | 30 | 450 | 90 |
H4 | 35 | 450 | 90 |
item | between the fabric plies | between cover and belt cord | |
cover thickness between0.8-1.5mm | cover thickness>1.5mm | ||
Average of sample N/mm | 8.0 | 5.0 | 6.0 |
Minium of sample N/mm | 7.0 | 4.5 | 5.5 |