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X2CrTiNb18   ( 1.4509 )

    Grade :     X2CrTiNb18
    Number:     1.4509
    Classification:     Ferritic stainless steel - special grade
    Density:     7.7   g/cm ³
    Standard:
    EN 10088-2: 2005 Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
    EN 10088-3: 2005 Stainless steels. Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
    EN 10028-7: 2007 Flat products made of steels for pressure purposes. Stainless steels
    EN 10296-2: 2005 Welded circular steel tubes for mechanical and general engineering purposes. Stainless steel. Technical delivery conditions
    EN 10088-1: 2005 Stainless steels. List of stainless steels
    EN 10088-4: 2009 Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes
    Equivalent grades:     Go here



Chemical composition %   of grade   X2CrTiNb18 (1.4509):   EN 10088-2-2005
Nb = ( 3 * C + 0.3 ) to 1.0
Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast.
C Si Mn P S Cr Nb Ti
max   0.03max   1max   1max   0.04max   0.01517.5 - 18.50.3 - 10.1 - 0.6


Mechanical properties of grade   X2CrTiNb18 (1.4509)

Rm - Tensile strength (MPa) (+A)430-630


Rp0.2 0.2% proof strength (MPa) (+A)200-250


A - Min. elongation at fracture (%) (+A)18


  Brinell hardness   (HB):   (+A)200


Properties of grade   X2CrTiNb18 (1.4509)
Resistance to intergranular corrosion: in the delivery condition - yes; in the welded condition - yes


Equivalent grades of grade   X2CrTiNb18 (1.4509)
Warning! Only for reference

USA
-
France
AFNOR
S43932
S43940
Z3CTNb18


Mechanical properties
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

Ferritic stainless steel - special grade   X2CrTiNb18 (1.4509)
Chemical composition , Equivalent grades , Standards, Properties , Hardness , Strength , Elongation

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