Stellite 251 Tool Die Steels

Stellite 251 - Specification & Application

Stellite alloy

Chemical composition(wt.%) of Stellite 251 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.30
Si - -
Mn - -
Cr - 28.00
Ni - -
Mo - -
Co remaining -
W - -
Fe - 18.00
Nb - 2.00

Stellite 251 - Detail

Stellite alloy

Mechanical properties of grade Stellite 251

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)
167 (≥) 716 (≥) 43 44 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical properties of grade Stellite 251

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
558 (≥) 551 (≥) 22 14 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 414
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
565 436 337

Equivalent Grade

Equivalent Products

We can customize the production of Stellite 251 grade, contact us for the best solution.
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