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X10CrMoVNb9-1   ( 1.4903 )

    Grade :     X10CrMoVNb9-1
    Number:     1.4903
    Standard:
    EN 10302 : 2008   Creep resisting steels, nickel and cobalt alloys
    EN 10028 - 2 : 2009   Specification for flat products made of steels for pressure purposes. Non-alloy and alloy steels with specified elevated temperature properties
    EN 10222 - 2 : 2000   Steel forgings for pressure purposes. Ferritic and martensitic steels with specified elevated temperature properties
    EN 10216 - 2 : 2002   Seamless steel tubes for pressure purposes. Non-alloy and alloy steel tubes with specified elevated temperature properties
    EN 10253 - 2 : 2007   Butt-welding pipe fittings. Non alloy and ferritic alloy steels with specific inspection requirements
    EN 10088 - 1 : 2005   Stainless steels. List of stainless steels.
    Density:     7.7   g/cm ³
    Classification:     Alloy special martensitic creep-resisting steel
    Equivalent grades:     No information



Chemical composition %   of grade   X10CrMoVNb9-1 (1.4903)
C Si Mn Ni P S Cr Mo V N NbAl
0.08 - 0.12max   0.50.3 - 0.6max   0.4max   0.025max   0.0158 - 9.50.85 - 1.050.18 - 0.250.03 - 0.070.06 - 0.1max   0.03


Mechanical properties of grade   X10CrMoVNb9-1 (1.4903)

Nominal thickness (mm):   to 6060 - 150150 - 250
Rm - Tensile strength (MPa)580-760550-730520-700
Rm - Tensile strength (MPa) (+QT)620-850


Nominal thickness (mm):   to 6060 - 250
ReH - Minimum yield strength (MPa)445435


Rp0.2 0.2% proof strength (MPa) (+QT)450


KV - Impact energy (J) transverse, (+NT)-20°
27

34
+20°
27-40
KV - Impact energy (J) longitud., (+NT)+20°
40


A - Min. elongation at fracture (%) 18-20
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Mechanical properties
Mechanische Eigenschaften
Caracteristiques mecaniques
ReH Minimum yield strength / Mindestwert der oberen Streckgrenze / Limite d�elasticite minimale
Rm Tensile strength / Zugfestigkeit / Resistance a la traction
A Minimum elongation / Mindestwert der Bruchdehnung / Allongement minimal
J Notch impact test / Kerbschlagbiegeversuch / Essai de flexion par choc


Heat treatment conditions
+A Soft annealed
+AC Annealed to achieve spheroidization of the carbides
+AR As rolled
+AT Solution annealed
+C Cold drawn / hard
+CR Cold rolled
+FP Treated to ferrite-pearlite structure and hardness range
+I Isothermal annealing
+LC Cold drawn / soft
+M Thermo mechanical rolling
+N Normalized
+NT Normalized and tempered
+P Precipitation hardened
+PE Peeled
+QA Air quenched and tempered
+QL Liquid quenched and tempered
+QT Quenched and tempered
+S Treated to improve shearability
+SH As rolled and turned
+SR Cold drawn and stress relieved
+T Tempered
+TH Treated to hardness range
+WW Warm worked
+U Untreated

Chemical composition of   X10CrMoVNb9-1 (1.4903). Equivalent grades of   X10CrMoVNb9-1 (1.4903). Standards of   X10CrMoVNb9-1 (1.4903).
Properties of   X10CrMoVNb9-1 (1.4903). Hardness of   X10CrMoVNb9-1 (1.4903). Strength of   X10CrMoVNb9-1 (1.4903). Elongation of   X10CrMoVNb9-1 (1.4903).

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