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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 |
P275NH is a weldable fine-grain steel suitable for the fabrication of pressure vessels for pressurised gases and chemicals, industrial boilers, compressors and heat exchangers. The grade is intended for use in moderate to high temperature service.
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 P275 NH, P275 NL1 & P275 NL2
Chemical element composition is % by mass.| Element | P275NH | P275NL1 | P275NL2 | Element | P275NH | P275NL1 | P275NL2 |
| Carbon (C) max. |
0.16 | 0.16 | 0.16 | Silicon (Si) max. |
0.40 | 0.40 | 0.40 |
| Manganese (Mn) | 0.80 to 1.50 | 0.80 to 1.50 | 0.80 to 1.50 | Phosphorous (P) max. | 0.025 | 0.025 | 0.020 |
| Sulphur (S) max. |
0.015 | 0.015 | 0.010 | Chromium (Cr) max. | 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 (Vi) max. | 0.05 | 0.05 | 0.05 | Nitrogen (N) max. |
0.012 | 0.012 | 0.012 |
| Aluminium (Al) min. | 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 0.05% max.
Table 2: Mechanical Properties of EN 10028 P275 NH, P275 NL1 & P275 NL2
| Grade | Type | Thickness (mm) |
Yield Strength MPa (min) |
Tensile Strength MPa |
Elongation % (min) |
| P275 NH P275 NL1 P275 NL2 |
Normalized | ≤ 16 16> to ≤40 40> to ≤60 60> to ≤100 100> to ≤150 150> to ≤250 |
275 265 255 235 225 215 |
390 to 510 390 to 510 390 to 510 370 to 490 360 to 480 350 470 |
24 24 24 23 23 23 |
To find out more about P275 NH, NL1 & NL2 and to receive a competitive quotation for the supply of this material, please click here to contact us.
Equivalent grades :
There are no comparisons available for this particular steel grade.
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