AF Oil Steel 250 Non Asbestos Jointing Gasket Sheets

Properties

Testing Method

Unit

Specification

Density

ASTM F 1315

G/cm3

1.7-2.9

Compressibility

ASTM F 36J

%

7-17

Recovery

ASTM F 36 J

%

≥40

Tensile Strength (Across Grain)

ASTM F 152

N/mm2

≥10.5

Creep Relaxation (0.80mm)

ASTM F 38 B

%

≤30

Stress Relaxation

DIN 52913

a. 16 hours, 175°C

50 Mpa

Mpa

≥22

b. 16 hours, 300°C

50 Mpa

Mpa

Gas Solubility (0.80 mm)

ASTM F 37 B

M/hour

≥ 1.0

Cold/Hot Compression (0.80 mm)

a. Thickness decrease at 23°C

%

b. Thickness decrease at 300°C

ASTM OIL NO 3 (5 HRS, 150°C)

Thickness Increase

%

≥15

Weight Increase

%

≥15

10. Fuel B (5 hrs, 23°C)

Thickness Increase

%

≥15

Weight Increase

%

≥15

11. Water (5 hrs, 100°C)

Thickness Increase

%

≥10

Weight Increase

%

≥10

12. Thickness Increase

65% H2S04 Acid (48 hrs, 23°C)

%

96% H2S04 Acid (48 hrs, 23°C)

%

40% HNO3 Acid (48 hrs, 23°C)

%

ASTM Line call out

ASTM 104 F712121E23A985M5

Max. Operating Conditions

Max. Peak Temperature

ºC

300

Max. Operating Temperature

ºC

250

Max. Operating Pressure

Bar

100