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X21CrMoNiV12-2

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X12CrNiMoV12-3 X12CrMoV12-6
#X21CrMoNiV12-2

Description

International ISO ISO/TR 4956, X21CrMoNiV12-2 Specialsteel Wrought steels for use at elevated temperatures in engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X21CrMoNiV12-2
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel X21CrMoNiV12-2 Bainite ISO International Wrought steels for use at elevated temperatures in engines

Chemical composition(mass fraction)(wt.%) of the X21CrMoNiV12-2

C Si Mn P S Cr Mo Ni V
0.17 -0.25 ≤0.50 ≤1.00 ≤0.035 ≤0.030 11.00 -12.50 0.70 -1.20 0.30 -1.00 0.20 -0.35

Mechanical Properties of steel grade X21CrMoNiV12-2

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
745 (≥) 867 (≥) 43 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade X21CrMoNiV12-2

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
11 - -     0.33 -  
582 922 - 33.3 141   -  
339 - 13 21.2   231 444

Heat Treatment of steel grade X21CrMoNiV12-2

Heat treated : 1746°C - 1296°C

Technological Curves of steel grade X21CrMoNiV12-2

Relevant standard of X21CrMoNiV12-2

ISO/TR 4956 Wrought steels for use at elevated temperatures in engines ISO-TR-4956.pdf
X12CrNiMoV12-3 X12CrMoV12-6
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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