As a pure alloy low carbon steel, S355 steel plate can be used in hot rolling and cold drawing conditions. S355 steel plate is non alloy steel with high yield. It was first specified in the European standard EN 10025 and later published by the British Standards Institute (BSI). These standards replace BS 4360. The average minimum life of this material is 355 N / mm2. Therefore, the name S355 (using "s" to refer to it) is used as structural steel.
S355 steel plate is a kind of low carbon steel grade, which is usually used in occasions with better mechanical properties than S275 grade. It is widely used in construction, manufacturing, marine industry and other industries.
The heat treatment temperatures (including heating rate, cooling rate and soaking time) of the hardened S355 steel plate vary depending on the shape and size of each component, and S355 steel plate is not ideal for hardening, although it can be subjected to limited heat treatment processes such as surface hardening. Other considerations in heat treatment of S355 steel plate include furnace type, quenching medium and workpiece transfer facilities.