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AFNOR 1.4310 Details

1.4310 Application:Steel wire for mechanical springs - Part 3: Stainless spring steel wire

Category Type Grade Microstructure Designations
Grades Stainless Steels 1.4310 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 10151 - Stainless steel strip for springs - Technical delivery conditions
NF EN 10263-5 - Steel rod, bars and steel wire for cold heading and cold extrusion - Part 5: Technical delivery conditions for stainless steels
NF EN 10264-4 (2002) - Steel wire and wire products - Steel wire for ropes - Part 4: Stainless steel wire
NF EN 10270-3 - Steel wire for mechanical springs - Part 3: Stainless spring steel wire

Chemical composition(wt.%) of 1.4310 grade: NF EN 10088-1

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.05 0.15
Si - 2.00
Mn - 2.00
P - 0.045
S - 0.015
Cr 16.00 19.00
Mo - 0.08
Ni 6.00 9.50
N - 0.11
Steel wire for mechanical springs - Part 3: Stainless spring steel wire

Mechanical properties of grade 1.4310 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)
722 (≥) 353 (≥) 34 34 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical properties of grade 1.4310 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
534 (≥) 215 (≥) 23 31 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 333
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
265 282 894

1.4310 - 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
X10CrNi18-8 AWS Germany
Stainless steels - Part 1: List of stainless steels
1.4310 AWS Germany
Stainless steels - Part 1: List of stainless steels
X10CrNi18-8 B.S. UK
Steel wire for mechanical springs - Part 3: Stainless spring steel wire
1.4310 B.S. UK
Steel wire for mechanical springs - Part 3: Stainless spring steel wire
X10CrNi18-8 AFNOR France
Steel wire for mechanical springs - Part 3: Stainless spring steel wire
1.4310 AFNOR France
Steel wire for mechanical springs - Part 3: Stainless spring steel wire
X10CrNi18-8 ISO International
Stainless steels - Chemical composition
X10CrNi18-8, 1.4310, 301, 301S21, Z12CN17-07 EN European
Steel wire for mechanical springs - Part 3: Stainless spring steel wire

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