Item

XB450

XB400

XB350

XB300

XB200

XB150

Tensile strength MPa≥

19.0

15.0

12.0

9.0

6.0

5.0

Aging Coefficient ≥

0.9

Burning Loss %≤

28

30

30

Density   g/cm³

1.6 2.0

Compressibility %

12 ± 5

Rebound degree

45

40

35

Pliability

    No Crack

Stress-relaxation≤

50

Steam Airtightness

with the temperature of 440-450 and the pressure of 11-12MPa,Keep for 30 min without puncture

with the temperature of 390-400 and the pressure of
8-9 MPa,Keep for 30 min without puncture

with the temperature of 340-350 and the pressure of
7-8 Mpa,Keep for 30 min without puncture

with the temperature of 290-300 and the pressure of
4-5 MPa,Keep for 30 min without puncture

with the temperature of 200-220 and the pressure of
2-3 Mpa,Keep for 30 min without puncture

with the temperature of 140-150 and the pressure of
1.5-2 MPa,Keep for 30 min without puncture