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ISO X12CrNiMoV12 3 Application:High temperature bainite and martensite steel ISO standard internal combustion engine
Category Type Steel grade Standard Country
Grades Special Alloy ISO X12CrNiMoV12 3 ISO ISO

Chemical composition % of the ladle analysis of grade ISO X12CrNiMoV12 3

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%) N(%) B(%)
0.08-0.15 Max 0.35 0.50-0.90 Max 0.03 Max 0.025 11.0-12.5 1.00-2.00 1.50-2.00 0.25-0.40 0.02-0.04 Max 0.008
High temperature bainite and martensite steel ISO standard internal combustion engine
Mechanical properties of grade ISO X12CrNiMoV12 3
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)
139 (≥) 364 (≥) 43 21 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 314
Physical properties of grade ISO X12CrNiMoV12 3
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
747 (≥) 264 (≥) 24 42 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 321
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
618 282 863
ISO X12CrNiMoV12 3 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
X12CrNiMoV12-3 ISO ISO
Creep resisting steels, nickel and cobalt alloys
1.4938 ISO ISO
Creep resisting steels, nickel and cobalt alloys
Z12CNDV12 Air 9160/C ISO ISO
wrought steels used in aeronautical constructions
X12CrNiMoV12-3, 1.4938 ISO ISO
X12CrNiMoV12-3, 1.4938

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