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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

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