Materials used for construction of compressor.

Reciprocating Compressor

Crankcase and body – Cast Iron

Crankshaft – Spheroidal graphite cast iron or stainless steel

Connecting rod – Forged Steel

Piston – Aluminium Alloy or Cast / Ductile Iron

Piston Rings – Cast Iron

Screw Compressor

Casing – Cast or Ductile Iron

Screw  – Steel or Stainless Steel or Nickel Alloy