Steel susceptible to tools and inserts for corrosive plastics and polymers, mould and pressure tools, die casting for the alloys of light non-ferrous metals.
CHEMICAL COMPOSITION:
C
Si
Mn
P
S
Cr
Mo
W
V
Co
Ni
0,36-0,42
Max 1,00
Max 1,00
Max 0,030
Max 0,030
12,50-14,50
-
-
-
-
-
MECHANICAL PROPERTIES:
Hardness after
Tempering ºC
Symbol
Value
Soft annealing
–
HB
≤241
Toughening
HB
300
Quenching with 1010 ºC in oil
–
HRC
54
Quenching with 1010 ºC in oil and tempering
(cooling during quenching can also be performed either in the air or gradually in the salt bath at 500–550 ºC and then cooled in the air)
180
HRC
≥52
200
HRC
53
250
HRC
52.5
450
HRC
54
500
HRC
52.5
550
HRC
49.5
600
HRC
46
PHYSICAL PROPERTIES:
Property
Unit
Value
Density, ρ
g*cm-3
7.60
Thermal expansion, α20-100ºC)
K-1
10.6*10-6
Thermal conductivity, λ20ºC)
W*m-1*K-1
29
Technological treatment processes:
Technological treatment processes
Possible application
Temperature, °C
Hot forming
Forging
+
1100-800
Rolling
+
1100-800
Treatment
Heat treatment
Quenching
+
1000-1050
Tempering
+
150-300
400-600
Precipitation strengthening
Supersaturation
–
–
Ageing
–
–
Annealing
Soft annealing
+
750-800
Stress relieving
+
600-700
Thermochemical treatment
Nitriding
+
470-520
Other
–
–
INTERNATIONAL STEEL GRADES:
ISO
CEN
Russia
X40Cr14
ISO 4957:2004
X40Cr14
ISO 4957:2004
–
–
US
Japan
China
–
–
–
–
–
–
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