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Z3CAT18 Application:Heat-Resistant Steel
Category Type Steel grade Standard Country
Grades Special Alloy Z3CAT18 AFNOR France

Chemical composition % of the ladle analysis of grade Z3CAT18

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%) Al(%) Ti(%)
Max 0.03 Max 0.75 Max 0.75 Max 0.035 Max 0.015 17.0-18.0 Max 0.50 1.70-2.10 0.2+4(C+N) Max 0.75
Z3CAT18
Mechanical properties of grade Z3CAT18
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)
419 (≥) 269 (≥) 31 43 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 344
Physical properties of grade Z3CAT18
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
994 (≥) 261 (≥) 33 11 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 133
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
371 953 554
Z3CAT18 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
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
Z3CAT18 AFNOR France
Iron and steel. Stainless steel for high temperature application

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