Steel grade S235JR is a popular general construction and machine steel that is made in accordance with the EN 10025-2 standard.
Classification: Non-alloy structural steel.
Products: Semi-finished products, long products and sheet hot-rolled products, wire rod and forgings.
Chemical composition of steel S235JR according to ladle sample for thicknesses not exceeding 40 mm, %
| C | Mn | P | S | N | Cu |
| ≤0.17 | ≤1.40 | ≤0.035 | ≤0.035 | ≤0.12 | ≤0.55 |
Mechanical properties of S235JR steel at room temperature
| Nominal thickness (mm) | Minimum yield strength, ReН, MPa | Strength limit, Rm (MPa) |
| ≤16 | 235 | 360-510 |
| >16≤40 | 225 | 360-510 |
| >40≤100 | 215 | 360-510 |
| >100≤150 | 195 | 350-500 |
| >150≤200 | 185 | 340-490 |
| >200≤250 | 175 | 340-490 |
| >250≤400 | 165 | 330-480 |
Steel S235JR analogues
| US | 1015 |
| Germany | RSt37-2, USt37-2, St37-2 |
| France | E24-2 |
| UK | 40B |
| Spain | AE 235 B-FN, AE 235 B-FU |
| Italy | Fe360B |
| Belgium | AE 235-B |
| Sweden | 1311, 1312 |
| Portugal | Fe360-B |
| India | IS226 |
| Austria | RSt360B, USt360B |
| Japan | SM400A, SS400 |
| China | Q235A, Q235B, Q235D |
| Russia | Ст2пс, Ст2сп, Ст3пс, Ст3сп |
Application
Steel grade S235JR is actively used to implement civil engineering solutions. Steel structures are made from S235JR steel for the construction of industrial and residential facilities, parts of power transmission towers, elements of equipment, offshore structures, oil and gas platforms, automobile bridges and other structures.
Welding
Steel grade S235JR can be welded without restrictions, without subsequent heat treatment and without heating; however, note that as the product thickness increases, so does the risk of cold cracks.
