S355 grade steel is a medium tensile, low carbon manganese steel which is readily weldable and possesses good impact resistance (also in sub-zero temperatures).
This material is commonly supplied in the untreated or normalised condition and is available in several variations (denoted by additional letters and/or digits) which offer slight modifications of chemical composition and mechanical properties.Machinability of this material is similar to that of mild steel.
Appliation: Construction;Bridges;Engineering;Tanks;Rail.
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Chemical composition and mechanical properties Of S35 steel ：
| Chemical composition of S355 steel | |||||
| Element | C | Mn | P | S | Si |
| Content | 0.22 max | 1.60 max | 0.03 max | 0.03 max | 0.55 max |
| Physical properties of S355 steel | ||||
| Grade | Tensile strength | Yield point | Elongation after breaking | Impact energy Akv20 degrees |
| S355 | 340-470 | ≥355 | ≥24 | ≥27 |
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