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Alloy Steel Chart

MATERIAL CHEMISTRY APPLICATION
AISI/ASTM EN DIN JIS C Si Mn P S Cr W Mo Ni V  
4340
EN 24
  
 
 
   
 
0.40
  
0.25
 
0.65
  
0.04
 
0.04
  
1.10
 		  
0.37
1.50
 
Used in construction of aircrafts and heavy vehicle for crankshaft, gearshaft, camshaft, propellershaft etc
1045
EN43B
  
CK45
 		  
0.45
  
0.25
 
0.8
  
0.06
 
0.06
  
 
 		  
 
 
  
General engineering, mold base

MATERIAL HEAT TREATMENT DETAILS
AISI/ASTM EN DIN JIS Annealing
(Slow Cooling)		 Quenchent
(Hot Bath)		 Quenching Tempering
(Air Cooling)		 Annealed
(hb)-max		 Quenched & (hrc) Tempered
4340
EN 24
  
 
 
   
 
650-700
OIL
830-850
670-530
220
48
1045
EN43B
  
CK45
 		  
660-700
OIL/WATER
830-860
670-530
190
38

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Graphite India –Powmex steel division Ltd.




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