Z21CDNbV11 Stainless Steels to NF A 35-578

Z21CDNbV11 - Specification & Application

  • NF A 35-578 - Iron and steel. Stainless steel for high temperature application

Iron and steel. Stainless steel for high temperature application

Chemical composition(wt.%) of Z21CDNbV11 grade: to NF A 35-578

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.16 0.25
Si 0.10 0.50
Mn 0.30 0.80
P - 0.030
S - 0.015
Cr 10.00 12.00
Mo - 1.00
Ni 0.50 1.00
Nb 0.25 0.55
V 0.10 0.30
N 0.05 0.10

Z21CDNbV11 - Detail

Iron and steel. Stainless steel for high temperature application

Mechanical properties of grade Z21CDNbV11 NF A 35-578

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)
251 (≥) 572 (≥) 32 42 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical properties of grade Z21CDNbV11 NF A 35-578

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
774 (≥) 527 (≥) 43 11 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 143
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
826 585 728

Equivalent Grade

Equivalent Products

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