Location » Home » Grades > Stainless Steels > X53CrMnNiN21-9

AFNOR X53CrMnNiN21-9 Details

X53CrMnNiN21-9 Application:Valve steels and alloys for internal combustion engines

Category Type Grade Designations
Grades Stainless Steels X53CrMnNiN21-9 France - AFNOR , NF EN 10090 - Valve steels and alloys for internal combustion engines

Chemical composition(wt.%) of X53CrMnNiN21-9 grade: NF EN 10090

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.48 0.58
Si - 0.25
Mn 8.00 10.00
P - 0.045
S - 0.030
Cr 20.00 22.00
Ni 3.25 4.50
Mo - -
N 0.35 0.50
Valve steels and alloys for internal combustion engines

Mechanical properties of grade X53CrMnNiN21-9 NF EN 10090

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
262 (≥) 165 (≥) 44 11 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical properties of grade X53CrMnNiN21-9 NF EN 10090

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
897 (≥) 862 (≥) 34 33 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 412
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
728 394 423

X53CrMnNiN21-9 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
X53CrMnNiN21-9 AFNOR France
Valve steels and alloys for internal combustion engines
1.4871 AFNOR France
Valve steels and alloys for internal combustion engines
X53CrMnNiN21-9 ISO International
Heat-treatable steels, alloy steels and free-cutting steels -- Part 15: Valve steels for internal combustion engines

Enquiry