1.2250, 45WCrV7, 45WCrV8 Tool Die Steels

1.2250, 45WCrV7, 45WCrV8 - Specification & Application

Knife Steel

Chemical composition(wt.%) of 1.2250, 45WCrV7, 45WCrV8 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.45 0.55
Cr 1.25 1.75
Mo - 0.40
W 1.00 3.00
V 0.15 0.30
Mn 0.20 0.40
Si 0.25 0.45
P - 0.03
S - 0.03

1.2250, 45WCrV7, 45WCrV8 - Detail

Mechanical properties of grade 1.2250, 45WCrV7, 45WCrV8

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
153 (≥) 517 (≥) 32 43 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical properties of grade 1.2250, 45WCrV7, 45WCrV8

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
649 (≥) 112 (≥) 32 33 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 433
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
282 825 485
We can customize the production of 1.2250, 45WCrV7, 45WCrV8 grade, contact us for the best solution.
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