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ISO X85CrMoV18-2 Details

Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines

ISO X85CrMoV18-2 Standard Download

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X85CrMoV18-2 Application:Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines
Category Type Grade Microstructure Designations
Grades Stainless Steels X85CrMoV18-2 Martensite International - ISO , ISO 683-15 (1992) - Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤) Similar Remarks
C 0.80 0.90
Si - 1.00
Mn - 1.50
P - 0.040
S - 0.030
Cr 16.50 18.50
Mo 2.00 2.50
Ni - -
V 0.30 0.60
Mechanical properties of grade X85CrMoV18-2
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)
229 (≥) 398 (≥) 21 14 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 141
Physical properties of grade X85CrMoV18-2
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
185 (≥) 758 (≥) 23 41 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 112
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
531 378 968
X85CrMoV18-2 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
X85CrMoV18-2 AFNOR France
Valve steels and alloys for internal combustion engines
1.4748 AFNOR France
Valve steels and alloys for internal combustion engines
X85CrMoV18-2 ISO International
Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines