Ni-Resist cast iron materials conforming to DIN 1694 and ASTM A 439

ASTM designation Code Material number Properties and information on application
Type D-2
A 439
GGG-NiCr 202
DIN 1694
0.7660 Corrosion- and heat-resistant up to 760 °C; good sliding properties, high thermal expansion; non-magnetic; used for pumps, valves, automotive exhaust system parts, sleeves, turbochargers, non-magnetic components
Type D-2 C
A 439
GGG-Ni 22
DIN 1694
0.7670 Resistant to temperatures as low as -100 °C; increased elongation; used for castings subjected to elevated corrosion demands, pumps, valves, etc.
Type D-2 M
A 571 Class 2
GGG-NiMn 234
DIN 1694
0.7673 Particularly high elongation, resistant to temperatures as low as -196 °C, DVM = 21 J; non-magnetic; castings for low-temperature engineering applications
Type D-3
A 439
GGG-NiCr 303
DIN 1694
0.7676 Improved thermal shock resistance at approx. 3% Cr; for castings subjected to elevated corrosion demands, pumps, valves, turbocharger casings, exhaust pipes
GGG-NiCrNb 202
DIN 1694
0.7659 As 0.7660, with improved welding properties
Type D-2 B
A 439
GGG-NiCr 203
DIN 1694
0.7661 Elevated heat and wear resistance, as 0.7660
Type D-5
A 439
GGG-Ni 35
DIN 1694
0.7683 Low thermal expansion, thermal shock resistant; for dimensionally stable parts, metering machine compressors, glass moulds
Type D-5 B
A
GGG-NiCr 353
DIN 1694
0.7685 As above, but with increased resistance to elevated temperatures; used for gas turbine casings
Type D-5 S
A 439
GGG-NiSiCr 35 5 2
DIN 1694
0.7688 As above, but with enhanced elongation properties; used for exhaust piping in high-power engine construction
Type D-3 A
A 439
GGG-NiCr 301
DIN 1694
0.7677 Improved thermal shock resistance; approx. 3% Cr; for castings exposed to elevated corrosion; used for pumps, valves, turbocharger casings, exhaust pipes
Type D-4
A 439
GGG-NiSiCr 3055
DIN 1694
0.7680 Good resistance to corrosion, heat and wear; average thermal expansion; low elongation; used in industrial furnace construction, exhaust pipes, turbocharger casings
Type D-5 S + Mo GGG-NiSiCr 3552
+ Mo
As 0.7688, but with a higher resistance to elevated temperatures as a result of Mo addition