These grades are austenitic ductile iron grades that provide good hardness, dampening, and some corrosion resistance. They provide reasonable strength and dimensional stability at higher temperatures.
|Representative Alloys||D-2, D-5B|
|Applications||Where a combination of toughness, corrosion resistance and wear/erosion resistance is needed; with certain alloy additons, these alloys also do well in higher temperature applications|
|Limitations||Very difficult to weld|
|Typical Uses||Slurry pumping applications, Cylinder liners, pistons, bearings, glands|
|Machinability||Fair to good|
|Weldability||Very difficult to weld and requires customer consent to weld|
|Corrosion Resistance||Good in mild acids/alkalies, sea water but fair less than stainless steels|