EN 10028 – P460 NH/NL1/NL2

P460NH, so called for having a minimum yield strength of 460 MPa, is is a high quality pressure vessel steel grade for use in boiler and pressure vessel fabrication. It is a normalised fine grain steel with good weldability characteristics.
Other grade types include…

  • NL1 – is ideal for use in low temperatures
  • NL2 – is ideal for use in especially low temperatures

P460NH is also used in sour gas applications where the steel will be HIC Tested to gauge the materials susceptibility to hydrogen induced cracking.

Table 2: Mechanical Properties of EN 10028 – P460 NH/NL1/NL2

GradeTypeThickness (mm)Yield Strength
MPa (min)
Tensile Strength
MPa
Elongation
% (min)
P460 NHNormalized≤ 16460570 - 75017
P460 NL116> to ≤40445570 - 72017
P460 NL240> to ≤60430570 - 72017
60> to ≤100400540 - 71017
100> to ≤150--17

(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)

Table 1: Chemical Composition of EN 10028 – P460 NH/NL1/NL2

 P460 NHP460 NL1P460 NL2
C0.200.200.20
Si0.600.600.60
Mn1.10 to 1.701.10 to 1.701.10 to 1.70
P0.0250.0250.020
S0.0150.0150.010
Al0.0200.0200.020
N0.0250.0250.025
Cr0.300.300.30
Cu0.700.700.70
Mo0.100.100.10
Nb0.050.050.05
Ni0.800.800.80
Ti0.030.030.03
V0.200.200.20

(The combined quantities of Niobium, Titanium and Vanadium should be 0.22% max.)