P275NH pressure vessel steel sheets comply with EN 10028-3 and are designed for pressure equipment operating under demanding conditions. This steel grade combines reliable mechanical strength, excellent weldability and consistent performance for pressure applications. These characteristics make it suitable for pressure vessels, storage tanks, boilers, heat exchangers and equipment used in the energy, chemical and petrochemical industries. The NH quality ensures dependable performance throughout the service life of the equipment.
Sidastico supplies cut-to-size steel sheets in a wide range of thicknesses and dimensions. The company cuts every sheet according to customer specifications, reducing material waste and improving manufacturing efficiency. Sidastico also provides the EN 10204 3.1 inspection certificate with every delivery, ensuring full traceability and compliance with the declared mechanical and chemical properties.
P275NH pressure vessel steel sheets are suitable for laser cutting, plasma cutting, oxy-fuel cutting, bending, drilling and welding. Manufacturers use this grade for pressure vessels, storage tanks, piping systems, industrial equipment and components operating under pressure. Its excellent fabrication properties help ensure long service life, high operational safety and reliable performance.
Compared with conventional pressure vessel steels, this material offers an excellent balance of strength, weldability and ease of fabrication. It is therefore an efficient solution for certified pressure equipment requiring consistent quality and dependable performance.
Sidastico combines extensive stock availability with precision cut-to-size processing, certified quality and reliable deliveries. Customers benefit from steel sheets designed for pressure equipment and supported by fast, dependable service.
Standard
EN10028-3
Identification Number
1.0487
Classification
–
Type
–
Rolling State
Normalised
Brief Description
Fine-grain, high-resistance structural steel for pressure vessels.
Good weldability and good cold and hot-rolling properties under normalised conditions.
Applications
Fine-grain, high-resistance structural steel for pressure vessels.
Standard Coil Stock Range
| P275NH | 1500 | 2000 |
|---|---|---|
| 3 | ● | ● |
| 4 | ● | ● |
| 5 | ● | ● |
| 6 | ● | ● |
| 7 | ● | |
| 8 | ● | ● |
| 10 | ● | ● |
| 12 | ● | ● |
Chemical Composition
Regulatory standard
| Element | Value |
| C (%) | ≤ 0,16 |
| Si (%) | ≤ 0,40 |
| Mn (%) | 0,80-1,50 |
| P (%) | ≤ 0,025 |
| S (%) | ≤ 0,010 |
| AI (%) | ≥ 0,020 |
| Nb (%) | ≤ 0,05 |
| Ti (%) | ≤ 0,03 |
| V (%) | ≤ 0,05 |
| Mo (%) | ≤ 0,08 |
| Cu (%) | ≤ 0,30 |
| Element | Value |
| Cr (%) | ≤ 0,30 |
| Ni (%) | ≤ 0,50 |
| N (%) | ≤ 0,012 |
| B (%) | |
| Nb+Ti+V (%) | ≤ 0,05 |
| Cr+Mo+Ni (%) | |
| Ni+Cr+Cu+Mo (%) | |
| C.E.V. (%) | ≤ 0,40* |
* = for thicknesses in mm ≤ 60
C.E.V. (%) = C+(Mn/6)+[(Cr+Mo+V)/5]+[(Ni+Cu)/15]
Mechanical Properties
According to UNI EN 10028
| Mechanical characteristics | Direction | Thicknesses | Values |
| Re (MPa) | T | ≤ 16 | ≥ 275 |
| T | > 16 ≤ 40 | ≥ 265 | |
| Rm(MPa) | T | ≤ 16 | 390-510 |
| T | > 16 ≤ 40 | 390-510 | |
| A80 (%) | T | ≥ 19 | |
| A5 (%) | T | ≥ 24 | |
| Bend Test 180° | |||
| KV 20°C (J) | L | ≤ 250 | ≥ 75* |
| T | ≤ 250 | ≥ 50* | |
| KV 0°C (J) | L | ≤ 250 | ≥ 65* |
| T | ≤ 250 | ≥ 40* | |
| KV -20°C (J) | L | ≤ 250 | ≥ 45* |
| T | ≤ 250 | ≥ 30* | |
| KV -40°C (J) | |||
| KV -50°C (J) |
* = Standard option
t = thickness in mm of the test piece for the bend test
ADW1 certification upon request
L = Tensile testing carried out on longitudinal test pieces
T = Bend tests carried out on cross-cut test pieces
Tolerances
Tolerances on the dimensions and on the shape UNI EN 10051
Surface condition UNI EN 10163-2
Certifications
EN 10204-3.1 PED/ 97/23/EC AD2000W1
DISCLAIMER: SIDASTICO S.p.A. declines any and all liability for the accuracy and precision of the information herein and reserves the right to modify any part without advanced notice.
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If you have any questions, please do not hesitate to contact us!
Via Astico, 44
36030 Fara Vic.no (VI) – IT
Tel. +39 0445/869500
info@sidastico.com
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