115W8 Tool Die Steels

115W8 - Specification & Application

Alloyed W steel

Chemical composition(wt.%) of 115W8 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.10 1.20
Si 0.15 0.30
Mn 0.20 0.40
P - 0.035
S - 0.035
Cr 0.15 0.25
Mo - -
V - -
W 1.80 2.10

115W8 - Detail

Alloyed W steel

Mechanical properties of grade 115W8

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)
343 (≥) 758 (≥) 41 31 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical properties of grade 115W8

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
117 (≥) 252 (≥) 34 23 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 121
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
318 282 421

Equivalent Grade

Equivalent Products

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