| ASTM D1418 DESIGNATION | ALSO KNOWN AS | ASTM D2000 TYPE/CLASS | TEMP RANGE(F) | HARDNESS RANGE (SHORE D) |
|---|---|---|---|---|
| NR | POLYISOPRENE- NATURAL RUBBER | AA | -20° TO +220° | 40-90 |
| BR | POLYBUTADIENE | AA | -20° TO +220° | 50-90 |
| SBR | STYRENE BUTADIENE | AA. BA | -60° TO +250° | 50-90 |
| IIR | ISOBUTYLENE ISOPRENE -BUTYL | AA,BA,CA | -70° TO +300° | 50-90 |
| EPDM, EPR | ETHYLENE PROPYLENE DIENE-NEOPRENE | AA,BA,CA,DA | -60° TO +300° | 50-90 |
| CR | CHLOROPRENE-NEOPRENE | BC.BE | -70° TO +250° | 40-95 |
| NBR | ACRYLONITRILE BUTADIENE | BF,BG,BK | -70° TO +250° | 50-95 |
| HNBR | HYDROGENATED NITRILE-HIGHLY SATURATED NITRILE | DH | -70° TO +300° | 50-95 |
| XNBR | CARBOXYLATED NITRILE | BF,BG,BK | -50° TO +250° | 50-95 |
| ECO | EPICHLOROHYDRIN-HYDRIN | CH,DK,DJ | -60° TO +275° | 50-95 |
| VMQ | POLYDIMETHYLSILOXANE-SILICONE | FC,FE,GE | -170° TO +550° | 50-95 |
| FKM | FLUOROCARBON-VITON, FLUOREL | HK | -40° TO +446° | 50-95 |
| KNITTED WIRE MESH | STAMPINGS OR CASTINGS | MACHINED |
|---|---|---|
| STAINLESS STEEL | BRONZE | STAINLESS STEEL |
| INCONEL | MONEL | INCONEL |
| ELGILOY | ALUMINUM | ALUMINUM |
| MONEL | FABRIC | TEFLON |
| BRONZE | STEEL | PLASTIC |
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