Z6CNT18.12B Stainless Steels to NF A 49-214

Z6CNT18.12B - Specification & Application

  • NF A 49-214 - Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery

Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery

Chemical composition(wt.%) of Z6CNT18.12B grade: to NF A 49-214

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.04 0.08
Si - 1.00
Mn - 2.00
P - 0.040
S - 0.030
Cr 17.00 19.00
Ni 11.00 13.00
Mo - -
B 0.0015 0.0060
Ti 4×C 0.60

Z6CNT18.12B - Detail

Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery

Mechanical properties of grade Z6CNT18.12B NF A 49-214

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)
588 (≥) 383 (≥) 32 32 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical properties of grade Z6CNT18.12B NF A 49-214

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
954 (≥) 348 (≥) 41 24 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 334
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
222 321 686

Equivalent Products

We can customize the production of Z6CNT18.12B grade, contact us for the best solution.
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