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X50CrMnNiNbN21-9

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X53CrMnNiN21-9 X53CrMnNiNbN21-9
#X50CrMnNiNbN21-9

Description

International ISO ISO 683-15 (1992), X50CrMnNiNbN21-9 Specialsteel Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X50CrMnNiNbN21-9
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel X50CrMnNiNbN21-9 Austenite ISO International Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines

Chemical composition(mass fraction)(wt.%) of the X50CrMnNiNbN21-9

C Si Mn P S Cr Mo Ni W Nb+Ta N
0.45 -0.55 ≤0.45 8.00 -10.00 ≤0.050 ≤0.030 20.00 -22.00 ≤ ≥ 3.50 -5.50 0.80 -1.50 1.80 -2.50 0.40 -0.60

Mechanical Properties of steel grade X50CrMnNiNbN21-9

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)
311 (≥) 598 (≥) 42 43 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade X50CrMnNiNbN21-9

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 - -     0.24 -  
546 517 - 42.3 442   -  
959 - 32 32.2   113 143

Heat Treatment of steel grade X50CrMnNiNbN21-9

Heat treated : 1344°C - 1877°C

Technological Curves of steel grade X50CrMnNiNbN21-9

Cross Reference Table (Equivalent Grade) of X50CrMnNiNbN21-9

Grade Standard Country Application
X50CrMnNiNbN21-9
X50CrMnNiNbN21-9

Relevant standard of X50CrMnNiNbN21-9

ISO 683-15 (1992) Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines ISO-683-15-(1992).pdf
X53CrMnNiN21-9 X53CrMnNiNbN21-9
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Jiangyou Longhai Special Steel Co.,Ltd.
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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