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AFNOR Z8NC33-21 Details

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Z8NC33-21 Application:Iron and steel. Stainless steel for high temperature application

Category Type Grade Designations
Grades Stainless Steels Z8NC33-21 France - AFNOR , NF A 35-578 - Iron and steel. Stainless steel for high temperature application

Chemical composition(wt.%) of Z8NC33-21 grade: 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
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)
594 (≥) 689 (≥) 41 22 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

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
844 (≥) 157 (≥) 32 24 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 131
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
635 866 915

Z8NC33-21 - Form of Supply

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
Z8NC33-21 AFNOR France
Iron and steel. Stainless steel for high temperature application

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