Item
|
Index
|
|||
H
|
D
|
L
|
||
Tensile strength/ Mpa ≥
|
24.0
|
18.0
|
15.0
|
|
Breaking elongation/ % ≥
|
450
|
400
|
350
|
|
Aging test (70℃, 7d)
|
Change rate of tensile strength/ %
|
±25
|
±25
|
±25
|
Change rate of breaking elongation/ %
|
±25
|
±25
|
±25
|
|
Abrasion loss/ mm3 ≤
|
120
|
100
|
200
|
|
Cold resistant coefficient at elongation ≥
|
C1 (-45℃)
|
0.3
|
||
C2 (-50℃)
|
0.2
|
|||
Note: C1-working temperature: -45℃~+50℃.C2-working temperature: -60℃~+50℃.
|