EN X50CrMnNiNbN21-9


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

EN EN X50CrMnNiNbN21-9 EN EN X50CrMnNiNbN21-9 Datasheet
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel EN X50CrMnNiNbN21-9 EN Euronorm Euronorm Stainless Steel
EN X15CrNiSi20-12
EN X15CrNiSi254
EN X15CrNiSi25-21
EN X18CrN28
EN X25CrMnNiN25-9-7
EN NiCr20TiAl
EN NiFe25Cr20NbTi
EN X33CrNiMnN23-8
EN X40CrSiMo10-2
EN X45CrSi9-3
Datasheet for:Steel Grades:Special Steel:EN X50CrMnNiNbN21-9

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

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Nb(%)
0.45-0.55 Max 0.45 8.00-10.0 0.045 0.030 20.0-22.0 3.50-5.50 1.80-2.50

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade EN X50CrMnNiNbN21-9

Rp0.2 (MPa)
Rm (MPa)
KV/Ku (J)
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
476 (≥) 557 (≥) 23 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 111
Modulus of elasticity
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
Specific thermal capacity
Specific electrical resistivity
(Ω mm²/m)
Poisson’s coefficient, ν
13 - -     0.13 -  
743 154 - 33.3 124   -  
985 - 44 23.2   323 111
Heat treated : 1343°C - 1597°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 standard valve austenite steel
EN X50CrMnNiNbN21-9 EN Euronorm
Euronorm Stainless Steel
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EN 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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