Steel for pressure vessels
Our structural steel for pressure vessels delivers excellent impact toughness and weldability.
Special grades offer guaranteed strength levels at temperatures up to 400°C and steels compliant with EN 10207 and/or EN 10028 for the manufacture of simple pressure vessels.
EN-Engineering-Product-Hot-Rolled-Pressure vessels-P235GH TSN
EN-Engineering-Product-Hot-Rolled-Pressure vessels-All grades OverviewTSN
Relationship with standards
Steel for pressure vessels complies with the following standards:
|
European standards |
|
|---|---|
|
EN 10028-2: 2009 |
EN 10207: 2005 |
|
Grade |
Grade |
|
P235GH |
P235S |
|
P265GH |
P265S |
EN-EngineeringAutomotive-Product-Hot-rolled-All Grades Surface aspects Supply Conditions TSE
Supply - product conditions
Hot-rolled steel can be supplied with these product conditions and finishes and with this surface treatment:
| Side/surface condition | non-pickled | pickled | pickled and oiled |
|---|---|---|---|
| Mill edges | Yes | Yes | Yes |
| Trimmed edges | - | Yes | Yes |
Trimmed edges available in thicknesses up to 8.0 mm.
Please contact us regarding other specifications we may have that meet your needs.
Surface aspects
| Description | Availability |
|---|---|
| Surface finish | Coils are available in non-pickled and pickled finish for most grades. For grade specific availability, please refer to the dimensional tables. |
| Oiling | Pickled finish is available with rolling or preservative oil applied. Oil weight normally 0.5-2.5 g/m2 |
Alternative oiling ranges are available.
Please contact us for details.
Certification
Test certificates 2.2/3.1 are available according to EN 10204.
EN-Engineering-Product-Hot-Rolled-Pressure vessels-P235GH-Properties
Mechanical Properties
The values shown for strength and elongation in the table below are for test pieces taken transverse to the rolling direction; those for the impact test are for test pieces taken in the rolling direction.
| EN 10028-2: 2009 | Grade | P235GH |
|---|---|---|
| Min. yield strength 1 | ReH (N/mm2) | 235 |
| 360 - 480 | ||
| Tensile strength | Rm (N/mm2) | |
| Elongation | % | 24 |
| Impact stength 2 | Temp. °C | -20 |
| Min. energy J | 27 |
1. Upper yield strength or 0.2% proof stress applies.
2. Impact strengths apply to thicknesses > 6 mm and are for standard test pieces only. Please contact us for details.
Elongation after fracture A uses test piece length L0 = 5.65√S0.
t – material thickness in mm.
Chemical composition
Structural steel meets the requirements of the cast analysis in the standard, as shown in the table below.
The steel grades supplied by Tata Steel are always fully killed.
Tata Steel does not supply steel with increased copper content.
| Grade | P235GH | |
|---|---|---|
| C | Max. | 0.16 |