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A pressure vessel steel grade with good weldability and high resistance to brittle cracking, P355NH is used by the world's fabricators for the manufacture of pressure vessel tanks for the storage of pressurised gases.
Other grade types include...
Please refer to the data tables below for more information.
The combined quantities of Niobium, Titanium and Vanadium should be 0.12% max.
(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)
To find out more about P355 NH, NL1 & NL2 and to receive a competitive quotation for the supply of this material, please CLICK HERE to contact us.
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Masteel UK Limited,
The Cedars, Coton Road,
Nether Whitacre, Coleshill,
Birmingham, West Midlands
B46 2HH
t: +44 (0)1675 437733
f: +44 (0)1675 437734
e–mail: enquiries@masteel.co.uk
website: www.masteel.co.uk
blogsite: www.masteel.ning.com
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Pressure Vessel Steel Home Page EN 10028 P235GH | P265GH | P295GH | P355GH | P275 NH/NL1/NL2 | P355 NH/NL1/NL2 P460 NH/NL1/NL2 |
A pressure vessel steel grade with good weldability and high resistance to brittle cracking, P355NH is used by the world's fabricators for the manufacture of pressure vessel tanks for the storage of pressurised gases.
Other grade types include...
- NL1 – is ideal for use in low temperatures
- NL2 – is ideal for use in especially low temperatures
Please refer to the data tables below for more information.
Table 1: Chemical Composition of EN 10028 P355 NH, P355 NL1 & P355 NL2
Chemical element composition is % by mass.| Element | P355NH | P355NL1 | P355NL2 | Element | P355NH | P355NL1 | P355NL2 |
| Carbon (C) max. |
0.18 | 0.18 | 0.18 | Silicon (Si) max. |
0.50 | 0.50 | 0.50 |
| 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. |
0.08 | 0.08 | 0.08 | Nickel (Ni) max. |
0.50 | 0.50 | 0.50 |
| Niobium (Nb) max. |
0.05 | 0.05 | 0.05 | Titanium (Ti) max. |
0.03 | 0.03 | 0.03 |
| Vanadium (V) max. |
0.10 | 0.10 | 0.10 | Nitrogen (N) max. |
0.012 | 0.012 | 0.012 |
| Aluminium (Al) max. |
0.020 | 0.020 | 0.020 | Copper (Cu) max. |
0.30 | 0.30 | 0.30 |
The combined quantities of Niobium, Titanium and Vanadium should be 0.12% max.
Table 2: Mechanical Properties of EN 10028 P355 NH, P355 NL1 & P355 NL2
| Grade | Type | Thickness (mm) |
Yield Strength MPa (min) |
Tensile Strength MPa |
Elongation % (min) |
| P355 NH P355 NL1 P355 NL2 |
Normalized | ≤ 16 16> to ≤40 40> to ≤60 60> to ≤100 100> to ≤150 150> to ≤250 |
355 345 335 315 305 295 |
490 to 630 490 to 630 490 to 630 470 to 610 460 to 600 450 to 590 |
21 21 21 21 21 21 |
To find out more about P355 NH, NL1 & NL2 and to receive a competitive quotation for the supply of this material, please CLICK HERE to contact us.
Equivalent grades :
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Masteel UK Limited,
The Cedars, Coton Road,
Nether Whitacre, Coleshill,
Birmingham, West Midlands
B46 2HH
t: +44 (0)1675 437733
f: +44 (0)1675 437734
e–mail: enquiries@masteel.co.uk
website: www.masteel.co.uk
blogsite: www.masteel.ning.com