Material Selection Chart
Section B -- Pump Application Data
B-2 Material Selection Chart
This chart is intended as a guide in the selection of economical materials. It
must be kept in mind that corrosion rates may vary widely with tem-perature,
concentration, and the presence of trace elements or abrasive solids. Blank
spaces in the chart indicate a lack of accurate corrosion
data for those specific conditions. In general, the chart is limited to metals
and non-metals regularly furnished by ITT-Goulds.
Note: Maximum temperature
limits are shown where data
is available. Contact a Goulds
representative for temperature
limits of all materials before
final material selection.
Code:
A
Recommended
B
Useful resistance
X
Unsuitable
Steel
Carbon steel, cast iron and ductile iron
Brz
Carbon steel, cast iron and ductile iron
316
Stainless steel
A-20
Carpenter stainless
CD4MCu
CD4MCu stainless steel
Alloy 2205
2205 Alloy 2205 stainless steel
Alloy 2205
Alloy 2205 stainless steel
C-276
Wrought Hastelloy ? C-276 alloy
Ti
Titanium unalloyed
ETFE
Ethylenetetrafluoro-ethylene (Tefzel ? )
FP Fluoropolymers (e.g.,Teflon ? ) including
perfluoroalkoxy (PFA),
polytetrafluoroethylene
(PTFE) and fluorinated
ethylene propylene (FEP)
FRP
Fiber-reinforced plastic (vinylester resin)
EPDM
Ethylenepropylene rubber (Nordel ? )
FKM1
Standard grades; dipolymers of hexafluoropropylene (HFP) and vinylidene
fluoride (VF 2 ) (Viton ? )
FKM2
Specialty grades; terpolymerscomprising at least three of
the following: HFP, VF2 ,
tetrafluorethylene (TFE),
perfluoromethylvinyl ether
(PMVE) or ethylene (E).
Specialty grades may have
significantly improved
chemical compatibility
compared to standard grades
in many harsh chemical
environments (Viton ? ).
FFKM
Copolymer of TFE and
PMVE (Kalrez ? )
PVDF
Polyvinylidene fluoride
(Kynar ? , Solef ? )
1 Compatibility is dependent on
specific freon. Contact elastomer
manufacturer.
