MATERIAL | silicone |
APPERANCE | red,blue,Mill finish,customized Product shape can be customized according to customer requirements |
TEMPERANTURE | -40℃ to 250℃ |
STRUCTURE | fabric reinforce,winding,Reinforced 3 to 5 polyester layer |
PRESSURE OF WORK | 0.6Mpa |
INTENALDIAMETER | φ6mm-φ500mm |
STANDARD | GB、JIS、ASTM |
PRODUCTPERFORMANCE | High working pressure and Strong resistance to high temperature,good flexibility, low temperature-leakage resistant,aging,cracking resistant and Ozone FKM resistant |
APPLICATION | Widely used in machinery industr y,automotive industry and other areas of water pipeline.Have the better flexibility,major used in pipeline of high end engine,pipe line of water tank and other pipeline of fluid. |
Inspect project | unit | Inspection standard | inspectionresults | ||
Hardness(shoreA) | internal rubber layer | HA | 70±5 | 70 | |
external rubber layer | HA | 70±5 | 70 | ||
Tensilestrenth | internal rubber layer | MPA | ≥7.0 | 8.1 | |
external rubber layer | MPA | ≥8.0 | 8.2 | ||
Elongationatbreak | internal rubber layer | % | ≥250 | 410 | |
external rubber layer | % | ≥300 | 410 | ||
Brittletemperature (-40℃) | internal rubber layer | / | no cracks | no cracks | |
external rubber layer | / | no cracks | no cracks | ||
Hot-aging test(internal rubber layer 200℃*72h) | change of hardness | HA | +15 lower | +3 | |
Variation of tensile strength | % | ±25 | -6 | ||
Variation of elongation at break | % | +10 -30 | -5 | ||
Hot-aging test(internal rubber layer 200℃*72h) | change of hardness | HA | +15 lower | +3 | |
Variation of tensile strength | % | ±25 | -5 | ||
Variation of elongation at break | % | +10 -30 | -5 | ||
Ozonetest(volumefraction50*10m³,40℃*72h) | / | no cracks | no cracks | ||
bond strength | KN/m | ≥1.2 | 1.4 | ||
burst pressure | MPA | ≥0.6 | 1.8 | ||
Change rate of external diameter(testpressurebelow0.1MPA) | % | ≤15 | 8 |