Grades | Stainless Steels | Z6CNT18.12B

AFNOR Z6CNT18.12B

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Z6CNT18.12B Application:Steel tubes. Seamless austenitic steel tubes for use at high temperatures. Dimensions (with normal tolerances). Technical conditions of delivery

Chemical composition(mass fraction)(wt.%) of the Z6CNT18.12B
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

Mechanical properties of grade Z6CNT18.12B

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
349 (≥) 611 (≥) 12 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical properties of grade Z6CNT18.12B

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
766 (≥) 121 (≥) 23 14 23 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
639 372 627 - - -

Z6CNT18.12B Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED