Z8NC33-21 Stainless Steels to NF A 35-578

Z8NC33-21 - 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 Z8NC33-21 grade: to NF A 35-578

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.05 0.10
Si - 0.75
Mn - 2.00
P - 0.035
S - 0.015
Cr 19.00 23.00
Mo 30.00 35.00
Ni - -
Al 0.15 0.60
Ti 0.15 0.60

Z8NC33-21 - Detail

Iron and steel. Stainless steel for high temperature application

Mechanical properties of grade Z8NC33-21 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)
483 (≥) 369 (≥) 22 22 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical properties of grade Z8NC33-21 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
815 (≥) 661 (≥) 31 13 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 343
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
365 893 285

Equivalent Grade

Equivalent Products

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