Hastelloy

Hastelloy features a nickel-molybdenum-chromium superalloy with an addition of tungsten designed to have excellent corrosion resistance in a wide range of severe environments. The high nickel and molybdenum contents makes the nickel steel alloy resistant to corrosion in reducing environments while chromium conveys resistance to oxidizing media. Few examples of hastelloy grade as below:

C276

ElementMinMax
Carbon--0.08
Manganese--2
Silicon0.751.5
Chromium1720
Nickel3437.0L
Phosphorous--0.03
Sulfur--0.03
IronBAL

C22

Chemical Composition:
Grade%CCrCoFeMnMo
Hastelloy C22Min--2-12.5
Max0.0122.52.560.514.5
%NiPSiSWV
MinBalance---2.5-
MaxBalance0.020.080.023.50.35

G30

Chemical Composition:
Grade%NiCrMoFeCCoW
UNS N06030MinRest284131.5
Max31.56170.0354
%CuMnSiNbPS
Min10.3
Max2.41.50.81.50.040.02

X

Chemical Composition:
Grade%NiCrMoWFeMn
Hastelloy XMinRest20.580.217-
Max23101221
%CSiSPCo
Min0.05---0.5
Max0.1510.030.042.5

B

Chemical Composition:
Grade%NiCrMoFeCoC
Hastelloy BMinRest-264--
Max0.53060.010.06
%MnSiVPS
Min--2215-
Max0.010.524170.025

B2

Chemical Composition:
Grade%NiCrMoFeCoC
Hastelloy B-2MinRest26
Max130210.02
%MnSiVPS
Min0.2
Max10.10.40.040.03

B3

Chemical Composition:
Grade%NiCrMoFeWCoCMnSiV
B3Min651271------
Max3323330.0130.10.2
%PSCuALTiNbTaZrNi Mo
Min--------94
Max0.030.10.20.50.20.20.020.198

C4

Chemical Composition:
Grade%NiCrMoFeC
Hastelloy c-4Min6514140
Max181730.015
%MnCoSPTi
Min
Max0.0220.030.040.7