Z17CNS20-12 Stainless Steels to NF A 35-573

Z17CNS20-12 - Specification & Application

  • NF A 35-573 - Stainless steels for general purposes. Plates, wide strips and strips
  • NF A 35-578 - Iron and steel. Stainless steel for high temperature application
  • NF A 36-209 - Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels

Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels

Chemical composition(wt.%) of Z17CNS20-12 grade: to NF A 35-573

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.17
Si 1.50 2.50
Mn - 2.00
P - 0.040
S - 0.015
Cr 19.00 21.50
Mo - -
Ni 11.00 13.00

Z17CNS20-12 - Detail

Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels

Mechanical properties of grade Z17CNS20-12 NF A 35-573

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)
376 (≥) 614 (≥) 44 12 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical properties of grade Z17CNS20-12 NF A 35-573

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
358 (≥) 872 (≥) 23 14 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 122
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
981 754 645

Equivalent Grade

Equivalent Products

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