The current code used for our steel above, for example – S275JR – did not exist before 2006, with different codes being used in Germany, Italy, Spain and the United States.Īs you can see from the above example, the steel S355JR was referred to in Italy as FE 510 B, in Germany as St 44-2, in Spain as AE355B and in the US as A633. Only in 2006 was a standard introduced that set out a generally applicable set of specifications for steel alloys. It’s important to note that, until 2006, almost every country 17used a different code to describe steel alloys. The properties of the steel tube also determine its suitability for a certain use or purpose, such as the production of tools or the construction of buildings, for example.
In this article, we can merely state that the properties of the steel tube, such as ductility, rigidity and its general ease of processing all depend on the formulation of its alloy.
Wikipedia provides a detailed classification of steel grades according to the steel’s carbon content. If we consult the above table, we can decipher the steel code S275JR as meaning the following:
