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Property | Requirement | Test method | Typical data |
Longitudinal shrinkage | ≤5% | ASTM D 2671 | ≤3% |
Tensile strength | ≥13.8 MPa | ASTM D 2671 | ≥19 MPa |
Elongation at break | ≥150% | ASTM D 2671 | ≥ 250% |
Tensile strength after ageing (232℃,168hrs) | ≥9.7 MPa | ASTM D 2671 | ≥14 MPa |
Elongation after ageing (200℃,168hrs) | ≥100% | ASTM D 2671 | ≥ 250% |
Heat shock(260℃,4hrs) | No crack | ASTM D 2671 | No crack |
Low-temperature flexibility(-65℃,4hrs) | No crack | ASTM D 2671 | No crack |
Dielectric voltage withstand | 2500V,60sec, no breakdown | ASTM D 2671 | pass |
Volume resistivity | 1015Ω·cm min. | ASTM D 876 | ≥1016Ω·cm |
Corrosion | No corrosion | ASTM D 2671 | No corrosion |
Flammability | VW-1 | UL224 | pass |
Dielectric constant | 2.1 | ||
Friction coefficient | 0.2-0.3 |
As Supplied Inside Diameter(mm) | After Recovery | ||
Inside Diameter (mm) | Wall Thickness (mm) | ||
1.0±0.15 | 0.75 | 0.2-0.3 | |
1.6±0.2 | 1.2 | 0.2-0.3 | |
2.4±0.2 | 1.6 | 0.2-0.3 | |
3.2±0.2 | 2.5 | 0.2-0.3 | |
4.8±0.2 | 3.5 | 0.2-0.3 | |
5.72±0.2 | 4.5 | 0.25-0.3 | |
9.4±0.2 | 7.2 | 0.25-0.3 | |
10.0±0.2 | 8.5 | 0.3-0.4 | |
12.7±0.2 | 9.5 | 0.3-0.4 | |
16.0±0.2 | 12.3 | 0.3-0.4 | |
18.0±0.2 | 13.8 | 0.3-0.4 | |
19.0±0.2 | 14.6 | 0.3-0.4 | |
20.0±0.2 | 15.4 | 0.3-0.4 | |
22.0±0.2 | 17 | 0.3-0.4 | |
25.0±0.3 | 19.3 | 0.4-0.5 | |
28.0±0.3 | 21.6 | 0.4-0.5 | |
30.0±0.3 | 23.1 | 0.4-0.5 | |





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