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AFNOR X4CrNi18-12 Details

X4CrNi18-12 Application:Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

Category Type Grade Microstructure Designations
Grades Stainless Steels X4CrNi18-12 Austenite France - AFNOR , NF EN 10088-1 - Stainless steels - Part 1: List of stainless steels
NF EN 10088-2 - Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
NF EN 10088-3 - Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
NF EN 10088-5 - Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes
NF EN 10264-4 (2002) - Steel wire and wire products - Steel wire for ropes - Part 4: Stainless steel wire
NF EN 10269 - Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

Chemical composition(wt.%) of X4CrNi18-12 grade: NF EN 10088-1

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.060
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.015
Cr 17.00 19.00
Mo - -
Ni 11.00 13.00
N - 0.11
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

Mechanical properties of grade X4CrNi18-12 NF EN 10088-1

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)
621 (≥) 346 (≥) 43 12 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical properties of grade X4CrNi18-12 NF EN 10088-1

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
739 (≥) 851 (≥) 41 43 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 143
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
936 959 168

X4CrNi18-12 - 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
X4CrNi18-12 AWS Germany
Stainless steels - Technical delivery conditions for drawn wire
1.4303 AWS Germany
Stainless steels - Technical delivery conditions for drawn wire
X4CrNi18-12 B.S. UK
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
1.4303 B.S. UK
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
X4CrNi18-12 AFNOR France
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
1.4303 AFNOR France
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

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