X3CrNiMo18-16-4 Stainless Steels to ISO 9328-5

X3CrNiMo18-16-4 - Specification & Application

  • ISO 9328-5 - Steel plates and strips for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled

Steel plates and strips for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled

Chemical composition(wt.%) of X3CrNiMo18-16-4 grade: to ISO 9328-5

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.030
Cr 17.50 19.50
Mo 3.00 4.00
Ni 14.00 17.00

X3CrNiMo18-16-4 - Detail

Steel plates and strips for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled

Mechanical properties of grade X3CrNiMo18-16-4 ISO 9328-5

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)
868 (≥) 927 (≥) 32 24 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical properties of grade X3CrNiMo18-16-4 ISO 9328-5

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
691 (≥) 322 (≥) 11 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 241
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
254 152 291

Equivalent Grade

Equivalent Products

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