Guangzhou Sub-Group Auto Parts Co.,Ltd.
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Red Green Brown NBR FKM Silicone JIS AS568 Rubber O Rings
Factory certification Silicone Rubber O Rings Seals Manufacturer Molded Food Grade
O Rings are one of our main products.We have FKM O Ring, Silicone O Ring, NBR O Ring, Neoprene O Ring, HNBR O Ring, NR O Ring, EPDM O Ring, FFKM O Ring, FVMQ O Ring, etc. We have complete range of specifications of standard o rings wit AS568, JIS, DIN, GB etc, also we can produce non standard o ring accoring to your requirement.
Viton O ring.
Common Name : Fluoro Elastomers
Chemical Definition :Fluorinated Hydrocarbon
Low Temperature Usage (°F:+10° to -10°
High Temperature Usage (°F) :400° to 600° (depending
on time and service condition)
Aging Weather- Sunlight:Excellent
Adhesion To Metals:Good
Advantage:
1. Heat resistance up to 600°F
2. Resistance to wide range of oils and solvents; specially
all aliphatic, aromatic and halogenated hydrocarbons,
acids, animal and vegetable oils.
Usage:
Automobile,motorcycle,diesel engine,and fuel system
Silicone O ring.
Low Temperature Usage (°F:-60° to -150°
High Temperature Usage (°F) :450°
Aging Weather- Sunlight:Excellent
Adhesion To Metals:Good
Advantage:
1. after modulating formula, the tensile strength up to1500 psi, and tear resistance up to 88 LBS.
2. Good elasticity and good compression deformation.
3. good resistance to neutral solvent.
4. excellent heat resistance.
5. With excellent cold resistance.
6. with excellent resistance to erosion of ozone and oxides .
Appliance:electric kettle,electric iron,Microwave oven,etc
NBR O ring.
Common Name:Buna N, Nitrile, NBR
Chemical Definition:Butadiene Acrylonitrile
General Characteristics:Waterproof,oilproof
Adhesion To Metals:Good to Excellent
Usual Hardness range:50-90 shore A
Advantage:
1. Has good solvent, oil, water and hydraulic fluid
resistance.
2. Good compression set, abrasion resistance and
tensile strength.
solvents such as acetone, and MEK, ozone,chlorinated hydrocarbons and nitro hydrocarbons.
Usage: fuel tank, grease-box, hydraulic, gasoline, water, silicone oil, etc
Neoprene O ring
ASTM D-2000 classification:BC, BE
Military(Mil-Std417) :SC
Chemical Definition:Polychloroprene
Low Temperature Usage (°F) :+10°to -50°
High Temperature Usage (°F):to 225°
Aging Weather- Sunlight:Good
Adhesion To Metals:Good to Excellent
Usual Hardness range:50-90 shore A
Features of different material rubber o ring
| Viton O ring | Silicone O ring | NBR O ring | HNBR O ring | EPDM O ring | NR O ring | Peoprene O ring | |
| Abbreviation | FKM | silicone | NBR | HNBR | EPDM | NR | Neoprene |
| Durometer(shoreA) | 60-90 | 30-90 | 20-95 | 50-90 | 30-90 | 20-90 | 20-95 |
| Tensile(P.S.I) | 500-2000 | 200-1500 | 200-3000 | 2600 | 500-2500 | 500-3500 | 500-3000 |
| Elongation(Max.%) | 300 | 700 | 600 | 530 | 600 | 700 | 600 |
| Compression set | good | Good | Good | Excellent | Good | Excellent | Good |
| Resilience-Rebound | Fair | Good | Good | Excellent | Good | Excellent | Excellent |
| Abrasion Resistance | Good | Fair to poor | Excellent | Excellent | Good | Excellent | Excellent |
| Tear Resistance | Good | poor | Good | Excellent | Fair | Excellent | Good |
| Solvent Resistant | Excellent | poor | Good to excellent | Good | Poor | Poor | Fair |
| Oil Resistant | Excellent | Fair to poor | Good to excellent | Excellent | Poor | Poor | Fair |
Choose the suitable material according to the material chart
| IIR | ECO | EPDM | FKM | NR | NBR | HNBR | FFKM | PU | MVQ | |
| ABRASION RESISTANCE | F-G | G | G-E | G | G | G-E | G-E | P | E | P |
| CHEMICAL RESISTANCE | G | G | E | E | G | F-G | E | E | F | G-E |
| COMPRESSION SET PROPERTIES | F | P-F | G | G-E | G | G-E | G-E | G | F | G-E |
| ELECTRICAL PROPERTIES | E | F | G | F | E | F-G | E | E | F-G | E |
| FLAME RESISTANCE | P | F-G | P | E | P | P | P | E | P | F-G |
| HEAT RESISTANCE | G | F-G | E | E | P | G-E | E | E | F | E |
| LOW TEMPERATURE PROPERTIES | G | G-E | G-E | P-F | E | G-E | G-E | P-F | G | E |
| OIL RESISTANCE | P | E | P | E | P | E | E | E | G | P-G |
| OZONE/WEATHERING RESISTANCE | E | E | E | E | P-F | P-F | E | E | E | E |
| PERMEABILITY TO GASES | E | G-E | G | G | P | G | G | G | G | P |
| PHYSICAL STRENGTH PROPERTIES | F | G | G-E | G-E | G | G-E | G-E | F-G | E | P-F |
| WATER RESISTANCE | E | E | E | G | G | F-G | E | G-E | F-G | F |
| Key: | E = Excellent | G = Good | F = Fair | P = Poor |