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AFNOR Z6CNT18-10 Details

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Z6CNT18-10 Application:Non alloy and alloy steel bolting for pressure equipement - Specifications

Category Type Grade Designations
Grades Stainless Steels Z6CNT18-10 France - AFNOR , NF A 35-578 - Iron and steel. Stainless steel for high temperature application
NF A 35-573 - Stainless steels for general purposes. Plates, wide strips and strips
NF A 36-607 - Austenitic stainless steel parts obtained by flat die forging or drop forging for boilers and pressure vessels. Grade and types
NF A 35-559 - Iron and steel. Heat treatable special steels and stainless steels for externally threaded fasteners for use at low temperatures
NF A 35-574 - Iron and steel. Stainless steel for general purposes. Semi- finished products, bars and wire rod
NF A 36-209 - Iron and steel. Austenitic and austenic-ferritic stainless steels plates for boilers and pressure vessels
NF E 29-043 - Non alloy and alloy steel bolting for pressure equipement - Specifications

Chemical composition(wt.%) of Z6CNT18-10 grade: NF A 35-578

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.060
Si - 0.75
Mn - 2.00
P - 0.040
S - 0.015
Cr 17.00 19.00
Mo - -
Ni 9.00 12.00
Ti 5(C+N) 0.70
Non alloy and alloy steel bolting for pressure equipement - Specifications

Mechanical properties of grade Z6CNT18-10 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)
344 (≥) 129 (≥) 11 31 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical properties of grade Z6CNT18-10 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
694 (≥) 833 (≥) 12 34 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 231
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
456 138 791

Z6CNT18-10 - 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
Z6CNT18-10 AFNOR France
Non alloy and alloy steel bolting for pressure equipement - Specifications
Z6CNT18-10B AFNOR France
Iron and steel. Stainless steel for high temperature application
Z6CNT18-10F AFNOR France
General purpose forgings. Stainless steels
TUZ6CNT18-10 AFNOR France
Steel pipes. Seamless pipes for furnaces. Austenitic stainless steels. Dimensions (with normal or reduced tolerances). Technical delivery conditions
TSZ6CNT18-10 AFNOR France
Steel tubes. Tubes welded longitudinally for heat exchangers. Austenitic stainless steels. Dimensions. Technical delivery conditions

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