NY250

Density g/cm3

1.8±0.2

Crosswise tensile strengt Mpa≥

11

Property after steeping in IRM903 oil, 149℃，5h

Crosswise tensile strength

Mpa≥

7

Weight increment rate  %≤

30

Appearance change

No

Property after steeping in fuel oil B, 21℃-30℃，5h

Appearance rate  %

0-20

Limpness after immersion oil

No

Compression rate  %

7-17

Springback rate %≥

45

Creep relaxation rate %≤

45

Limpness at normal temperature

Curved for 180° at a pole with a diameter for 12 times thick of sample nominal, the sample cannot be damaged with flaws etc.

Corrosion against metal

No

Oil tightness

Medium pressure Mpa

10

Sealing requirements

Keeping 30min, no leakag

Leakage rate of nitrogen mL/h·mm≤

300

The highest usage temperature ℃

250

The maximum usage pressure Mpa

2.5

Suitable medium

Oii

Remarks: asbestos rubber sheet with a thickness over 3mm, no test on tensile strength.