X50CrMnNiNbN21-9

This page provides X50CrMnNiNbN21-9 datasheet, X50CrMnNiNbN21-9 mechanical properties, chemical element X50CrMnNiNbN21-9, technical specifications of X50CrMnNiNbN21-9 steel material properties. X50CrMnNiNbN21-9 performance specifications.

AFNOR X50CrMnNiNbN21-9 AFNOR X50CrMnNiNbN21-9 Datasheet
Category Type Steel Grade Standard Country Application
Steel GradesValve Steel X50CrMnNiNbN21-9 AFNOR France Valve Internal Combustion Engines steel (NF-EN 1009-1998)
X45CrSi9-3
X40CrSiMo10-2
1.4731
1.4718
X33CrNiMnN23-8
1.4866
X53CrMnNiN21-9
1.4871
X55CrMnNiN20-8
1.4875
Datasheet for:Steel Grades:Valve Steel:X50CrMnNiNbN21-9

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

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) W(%) N(%)
0.45-0.55 Max 0.45 8.00-10.0 Max 0.045 Max 0.030 20.0-22.0 3.50-5.50 0.80-1.50 0.40-0.60

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of 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)
198 (≥) 445 (≥) 42 11 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 442
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
22 - -     0.42 -  
412 288 - 13.3 322   -  
879 - 41 34.2   113 342
Heat treated : 1453°C - 1497°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
X50CrMnNiNbN21-9 DIN Germany
Valve steel
X50CrMnNiNbN21-9 AFNOR France
Valve Internal Combustion Engines steel (NF-EN 1009-1998)
ISO X50CrMnNiNbN21 9 ISO ISO
ISO standard valve austenite steel
EN X50CrMnNiNbN21-9 EN Euronorm
Euronorm Stainless Steel
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X50CrMnNiNbN21-9 can be supplied as steel plate/ sheet, round steel bar, steel tube/pipe, steel stripe, steel billet, steel ingot, steel wire rods. electroslag, forged ring/ block,etc.
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