EN 10028 – P275NH/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
Masteel offers P275NH from stock and deliver worldwide. Our carbon plates are also tested to the most stringent standards which makes the suitability of our stock even greater and ensures you get a quicker delivery.
Table 2: Mechanical Properties of EN 10028 – P275NH/NL1/NL2
| Grade | Type | Thickness (mm) | Yield Strength MPa (min) | Tensile Strength MPa | Elongation % (min) |
|---|---|---|---|---|---|
| P275 NH | Normalized | ≤ 16 | 275 | 390 - 510 | 24 |
| P275 NL1 | 16> to ≤40 | 265 | 390 - 510 | 24 | |
| P275 NL2 | 40> to ≤60 | 255 | 390 - 510 | 24 | |
| 60> to ≤100 | 235 | 370 - 490 | 23 | ||
| 100> to ≤150 | 225 | 360 - 480 | 23 | ||
| 150> to ≤250 | 215 | 350 - 470 | 23 |
(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 – P275NH/NL1/NL2
| P275 NH | P275 NL1 | P275 NL2 | |
|---|---|---|---|
| C | 0.16 | 0.16 | 0.16 |
| Si | 0.40 | 0.40 | 0.40 |
| Mn | 0.80 to 1.50 | 0.80 to 1.50 | 0.80 to 1.50 |
| P | 0.025 | 0.025 | 0.020 |
| S | 0.015 | 0.015 | 0.010 |
| Al | 0.020 | 0.020 | 0.020 |
| N | 0.012 | 0.012 | 0.012 |
| Cr | 0.30 | 0.30 | 0.30 |
| Cu | 0.30 | 0.30 | 0.30 |
| Mo | 0.08 | 0.08 | 0.08 |
| Nb | 0.05 | 0.05 | 0.05 |
| Ni | 0.50 | 0.50 | 0.50 |
| Ti | 0.03 | 0.03 | 0.03 |
| V | 0.05 | 0.05 | 0.05 |
(The combined quantities of Niobium, Titanium and Vanadium should be 0.05% max.)