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Z12CKNDWNb21-20-20

Favorite Datasheet
347F20 Z20CN21-12Az
#Z12CKNDWNb21-20-20

Description

France AFNOR NF A 35-579, Z12CKNDWNb21-20-20 Specialsteel Valve steels and alloys for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: Z12CKNDWNb21-20-20
Category Class Grade Standard Country Application
Steel GradesSpecialsteel Z12CKNDWNb21-20-20 AFNOR France Valve steels and alloys for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the Z12CKNDWNb21-20-20

C Si Mn P S Cr Ni Mo Co W Nb N
0.08 -0.16 ≤1.00 1.00 -2.00 ≤0.040 ≤0.030 20.00 -22.50 19.00 -21.00 2.50 -3.50 18.50 -21.00 2.00 -3.00 0.75 -1.25 0.10 -0.20

Mechanical Properties of steel grade Z12CKNDWNb21-20-20

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)
848 (≥) 816 (≥) 32 13 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade Z12CKNDWNb21-20-20

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
43 - -     0.22 -  
166 776 - 13.3 134   -  
795 - 22 23.2   131 432

Heat Treatment of steel grade Z12CKNDWNb21-20-20

Heat treated : 1834°C - 1756°C

Technological Curves of steel grade Z12CKNDWNb21-20-20

Cross Reference Table (Equivalent Grade) of Z12CKNDWNb21-20-20

Grade Standard Country Application
Z12CKNDWNb21-20-20
Z12CKNDWNb21-20-20

Relevant standard of Z12CKNDWNb21-20-20

NF A 35-579 Valve steels and alloys for internal combustion engines NF-A-35-579.pdf
347F20 Z20CN21-12Az
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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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