Main Engine Component Materials

No	ENGINE COMPONENT	MATERIAL
1	Exhaust valve Exhaust valve seat Exhaust valve cage	Nimonic Mo-Steel with stellite coating Pearlite Cast Iron
2	Cylinder head cover	Lamellar Cast Iron
3	Piston crown Skirt Rod Ring	Cast Steel Cast Iron Forged Steel Vermicular Cast Iron
4	Liner	Spheroidal Cast Iron
5	Tie rod	Mild steel
6	Entabulature	Cast Iron
7	Stuffing Box Rings	Bronze
8	Crosshead Bearing	Tin-Al white metal thin shell bearing
9	Connecting Rod	Mild or medium steel
10	Crank pin bearing	White metal bearing
11	Crank shaft web	0.2 to 0.4 % Carbon mild steel
12	Main bearing	Thin shell white metal bearing
13	Saddle	Cast Steel
14	Bed plate	Cast Iron or Forged Steel
15	A-Frame	Forged steel

Reference

1. Marine Diesel Engines by Deven Aranha