26NiCrMoV14-5 Tool Die Steels to SEW 555

26NiCrMoV14-5 - Specification & Application

  • SEW 555 - Steels for larger forgings for components in turbine and generator installations

Steels for larger forgings for components in turbine and generator installations

Chemical composition(wt.%) of 26NiCrMoV14-5 grade: to SEW 555

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.28
Si - 0.25
Mn - 0.40
P - 0.010
S - 0.010
Cr 1.40 1.80
Ni 3.40 3.80
Mo 0.30 0.45
V - 0.15
Al - 0.025

26NiCrMoV14-5 - Detail

Steels for larger forgings for components in turbine and generator installations

Mechanical properties of grade 26NiCrMoV14-5 SEW 555

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)
921 (≥) 636 (≥) 43 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical properties of grade 26NiCrMoV14-5 SEW 555

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
459 (≥) 689 (≥) 41 43 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 333
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
296 515 961

Equivalent Products

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