What is the casting material used for equipment such as pumps, turbines, compressors, valves and pipe fittings, etc?

Asked by mafael81 5 years, 3 months ago | 1 Answers

1 Answer

mobassey 5 years, 3 months ago
For ductile iron reciprocating compressors and pumps, all castings should be ferritizing anneal and have a microstructure containing a minimum of 90 percent of the Graphite as Type I and Type II Graphite as defined in ASTM A 395/A 395M. Alloy 400 castings for use in hydrofluoric acid service should be grade M-35-1 as defined in ASTM A 494/A 494M except that (Si + 5 x C) should be less than 2.5 percent.