High Speed Steel
Cold Work Tool Steel
Hot Work Tool Steel
Plastic Moulding Steel

 

    
Plastic Moulding steel (AISI P-20)
 
Equivalent Grades.
American
German
Japanese
China
Poland
(W.Nr.)
(DIN)
AISI P-20
1.2738
40CrMnNiMo8-6-4
-
-
-



 

Chemical Composition (AISI P-20)
 
 
C
Si
Mn
P
S
Cr
Mo
V
W
Ni
AISI P-20
0.35-0.45
0.20-0.40
1.30-1.60
-
-
1.80-2.10
0.15-0.25
-
-
 0.90-1.20
 
  AISI P-20
 
 
Steel properties
Good machinability, suitable for chemical etching, better hardenability than THYROPLAST® 2311. Used for all thicknesses Good polishability. Guaranted through hardness: 290 HB or 100 kg/mm2 minimum.
 
Applications
Plastic moulds of all thicknesses with deep engraving and high through hardness.
 

Tempering curve :-