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X53CrMnNiNbN21-9

Description

International ISO ISO 683-15 (1992), X53CrMnNiNbN21-9 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: X53CrMnNiNbN21-9
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel X53CrMnNiNbN21-9 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 X53CrMnNiNbN21-9

C Si Mn P S Cr Mo Ni Nb+Ta N
0.48 -0.58 ≤0.45 8.00 -10.00 ≤0.050 ≤0.030 20.00 -22.00 ≤ ≥ 3.25 -4.50 2.00 -3.00 0.38 -0.50

Mechanical Properties of steel grade X53CrMnNiNbN21-9

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)
333 (≥) 229 (≥) 21 11 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade X53CrMnNiNbN21-9

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
14 - -     0.41 -  
839 453 - 44.3 231   -  
783 - 23 34.2   343 434

Heat Treatment of steel grade X53CrMnNiNbN21-9

Heat treated : 1278°C - 1872°C

Technological Curves of steel grade X53CrMnNiNbN21-9

Cross Reference Table (Equivalent Grade) of X53CrMnNiNbN21-9

Grade Standard Country Application
X53CrMnNiNbN21-9
X53CrMnNiNbN21-9

Relevant standard of X53CrMnNiNbN21-9

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

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