KARASTO: TABLE OF MATERIAL RESISTANCES


Non-ferrous metals
Thermoplastics
Elastomers
Shore hardness grades. According to DIN 53505 A

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Non-ferrous metals
CW614N - Brass (Cu Zn39 Pb3)
CW617N - Brass (Cu Zn40 Pb2)
LM - Aluminium (ALMg Sil)
   
Thermoplastics
ABS - Acrylonitrile butadiene styrene
HD-PE - High pressure polyethylene
ND-PE - Low pressure polyethylene
PA - Polyamide
PE - Polyethylene
POM - Polyoxymethylene
PP - Polypropylene
PSU - Polysulphone
PIFE - Polytetrafluoroethylene (Teflon)
PVC - Polyvinyl chloride
SAN - Styrene acrylonitirile
THERMOFLEX - Thermoplastic polyester
   
Elastomers
CR - Polychloroprene (Neoprene)
EPDM - Ethylene-propylene-terpolymer
EWP 210 - Rubber-bound plastic fibres (surface graphitized on one or both sides)
FPM - Vinylidene fluoride hexaflouropropylene lcopolymer (Viton)
NBR - Butadiene/acrylonitrile copolymer (Perbutane)
NR - Natural rubber (food product resistant)
PU - Polyurethane (Vulkollan)
SBR - Styrene butadiene rubber
   
Shore hardness grades. According to DIN 53505 A
28° up to 38° - very soft
40° up to 50° - soft
52° up to 66° - moderately soft
68° up to 78° - moderately hard
80° up to 90° - hard
92° up to 100° - very hard