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P355NH   ( 1.0565 )

    Grade :     P355NH
    Number:     1.0565
    Classification:     Non-alloy elevated temperature quality steel
    Density:     7.85   g/cm ³
    Standard:
    EN 10028-3: 2009 Flat products made of steels for pressure purposes. Weldable fine grain steels, normalized
    EN 10222-4: 1999 Steel forgings for pressure purposes. Weldable fine-grain steels with high proof strength
    EN 10216-3: 2014 Seamless steel tubes for pressure purposes. Technical delivery conditions. Alloy fine grain steel tubes
    EN 10217-3: 2002 Welded steel tubes for pressure purposes. Alloy fine grain steel tubes
    EN 10253-2: 2007 Butt-welding pipe fittings. Non alloy and ferritic alloy steels with specific inspection requirements
    EN 10273: 2007 Hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties
    Equivalent grades:     Go here



Chemical composition %   of grade   P355NH (1.0565):   EN 10028-3-2009
According EN 10222-4 chemical composition: C < 0.2; 0.1 < Si < 0.5; 0.9 < Mn < 1.65; Ni < 0.3; 0.02 < Al < 0.06
C Si Mn Ni P S Cr Mo V N Nb TiAl Cu -
max   0.18max   0.51.1 - 1.7max   0.5max   0.025max   0.015max   0.3max   0.08max   0.1max   0.012max   0.05max   0.03max   0.02max   0.3 Nb+Ti+V < 0.12


Mechanical properties of grade   P355NH (1.0565)

Nominal thickness (mm):   to 6060 - 100100 - 150150 - 250
Rm - Tensile strength (MPa) (+N)490-630470-610460-600450-590


Nominal thickness (mm):   to 1616 - 4040 - 6060 - 100100 - 150150 - 250
ReH - Minimum yield strength (MPa) (+N)355345335315305295


KV - Impact energy (J) transverse, (+N)-20°
27-30

35-40
+20°
39-50
KV - Impact energy (J) longitud., -20°
40-45

47-65
+20°
55-75


Nominal thickness (mm):     to 6060 - 250
A - Min. elongation at fracture (%) (+N)2221


Equivalent grades of grade   P355NH (1.0565)
Warning! Only for reference
USA
-
Germany
DIN,WNr
France
AFNOR
England
BS
Italy
UNI
A662Gr.C
WStE355
A510AP
224Gr.490
FeE355-2


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

Non-alloy elevated temperature quality steel   P355NH (1.0565)
Chemical composition , Equivalent grades , Standards, Properties , Hardness , Strength , Elongation

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