SMB Engine Valves- INDIA

Material Chemical Composition

Material
EN-52
21-4N
C 0.40 TO 0.50% 0.475 TO 0.575%
Si 3.00 TO 3.50% 0.25% MAX
Cr 7.50 TO 9.50% 20.00 TO 22.00%
Ni 0.50% MAX 3.25 TO 4.50%
Mn 0.30 TO 0.60% 8.00 TO 10.00%
S 0.03% MAX 0.04 TO 0.09%
P 0.04% MAX 0.03% MAX