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P275NH steel

EN10028 P275NH steel plate/sheet,EN10028 P275NH steel plate/sheet, under EN standard, we can regard P275NH steel plate/sheet for boilers and Pressure Vessels steels.EN10028 P275NH steel plate/sheet is for boilers and Pressure Vessels steels,it is a normalized steel plate and sheet which is mainly used for building pressure vessels and boilers and pipes for hot liquid.

The chemical composition of EN P275NH steel

Element  Max % Element  max %
C 0.18 Cu 0.30
Si 0.40 Mo 0.08
Mn 0.50-1.40 N 0.02
P 0.03 Nb 0.05
S 0.03 Ni 0.50
AL 0.020 Ti 0.03
Cr 0.30 V 0.05
Nb+Ti+V 0.05    

The mechanical properties of EN P275NH steel

Grade Material Thickness Yield Strength Tensile Strength Elongation
(mm) MPa (min) MPa % (min)
P275NH 1.0487 ≤ 16 275    
16> to ≤35  275    
35> to ≤50 265    
50> to ≤70 255 370-490 23
70> to ≤100 235 350-470 1)
100> to ≤150 225 1) 1)
>150 390-510 24  

The impact test of EN P275NH steel

  Type Usual
Dekivery
Condition
Norminal
Thickness
(mm)
Impact Energy KV min[J] at temperature [°C]
Longitudinal Longitudinal
-50 -40 -20 0 +20 -50 -40 -20 0 +20
P275NH N 5-150 - - 40 47 55 - - 20 27 31