EN 10028 – P460NH, P460NL1, P460NL2
1.Pressure Vessel Steel Home Page
EN 10028
P235GH | P265GH | P295GH | P355GH | P275 NH/NL1/NL2 | P355 NH/NL1/NL2
P460 NH/NL1/NL2
2.P460NH, so-called for having a minimum yield strength of 460 MPa, is a high-quality pressure vessel steel grade for use in boiler and pressure vessel fabrication. It is normalized fine grain steel with good weldability characteristics.
3.Other grade types include…
NL1 – is ideal for use in low temperatures
NL2 – is ideal for use in shallow 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
4.Please refer to the data tables below for more information.
Table 1: Chemical Composition of EN 10028 P460 NH, P460 NL1 & P460 NL2
Element | P460NH | P460NL1 | P460NL2 | Element | P460NH | P460NL1 | P460NL2 |
Carbon (C) max. |
0.20 | 0.20 | 0.20 | Silicon (Si) max. |
0.60 | 0.60 | 0.60 |
Manganese (Mn) | 1.10 to 1.70 | 1.10 to 1.70 | 1.10 to 1.70 | Phosphorous (P) max. |
0.025 | 0.025 | 0.020 |
Sulphur (S) max. |
0.015 | 0.015 | 0.010 | Chromium (Cr) min. |
0.30 | 0.30 | 0.30 |
Molybdenum (Mo) max. |
0.10 | 0.10 | 0.10 | Nickel (Ni) max. |
0.80 | 0.80 | 0.80 |
Niobium (Nb) max. |
0.05 | 0.05 | 0.05 | Titanium (Ti) max. |
0.03 | 0.03 | 0.03 |
Vanadium (V) max. |
0.20 | 0.20 | 0.20 | Nitrogen (N) max. |
0.025 | 0.025 | 0.025 |
Aluminium (Al) max. |
0.020 | 0.020 | 0.020 | Copper (Cu) max. |
0.70 | 0.70 | 0.70 |
Chemical element composition is % by mass.
Element P460NH P460NL1 P460NL2 Element P460NH P460NL1 P460NL2
The combined quantities of Niobium, Titanium, and Vanadium should be 0.22% max.
5.Table 2: Mechanical Properties of EN 10028 P460 NH, P460 NL1 & P460 NL2
Grade | Type | Thickness (mm) |
Yield Strength MPa (min) |
Tensile Strength MPa |
Elongation % (min) |
P460 NH P460 NL1 P460 NL2 |
Normalized | ≤ 16 16> to ≤40 40> to ≤60 60> to ≤100 100> to ≤150 |
460 445 430 400 – |
570 to 750 570 to 720 570 to 720 540 to 710 – |
17 17 17 17 17 |
(Please note: the technical information above is for guidance only – for exact specifications, please check with our Sales Team)
6.To find out more about P460 NH, NL1 & NL2 and to receive a competitive quotation for the supply of this material, please contact us.