Potassium Nitrate
17-4 PH (Stainless)A - Excellent
3% NI / IronB - Good
ABS PlasticB - Good
Acetal (Delrin ®)A - Excellent
Alloy 20A - Excellent
AluminumB - Good
Aluminum BronzeB - Good
BrassB - Good
BronzeA - Excellent
Buna N (Nitrile)A³ - Excellent
Carbon GraphiteA - Excellent
Carbon SteelB - Good
Carpenter 20B - Good
Cast IronA - Excellent
Ceramic AI203B - Good
Ceramic MagnetN/A
ChemRaz® (FFKM)A - Excellent
CopperA - Excellent
CPVCA - Excellent
Ductile IronB - Good
EpoxyA - Excellent
Ethylene Propylene (EPDM)A³ - Excellent
Flourocarbon (FKM) Viton®A³ - Excellent
GraphiteD - Poor
Gray IronB - Good
Hastelloy CA - Excellent
Hytrel® (TPE)B - Good
Kalrez® (Perfluoroelastomer)A - Excellent
Kel-F® (PCTFE)N/A
Kynar® (PVDF)A³ - Excellent
LDPEA - Excellent
MonelA - Excellent
Natural RubberA - Excellent
NeopreneA³ - Excellent
NI Plated DuctileN/A
NORYL® (PPO)A¹ - Excellent
NylonA¹ - Excellent
Polycarbonate (PC)C¹ - Fair
Polyetherether Ketone (PEEK)A³ - Excellent
Polypropylene (PP)A - Excellent
Polysulfone (PSU)A - Excellent
Polyurethane (PUR)A - Excellent
PPS (Ryton®)A - Excellent
PTFE (Teflon®)A - Excellent
PVCA³ - Excellent
SiliconeA - Excellent
Silicone BronzeA - Excellent
Stainless Steel - 304B - Good
Stainless Steel - 316A - Excellent
Stainless Steel - 400A - Excellent
Stellite®A - Excellent
TitaniumA - Excellent
Tygon®A - Excellent