Alloy steel is a steel which has had small amounts of one or more elements (other than carbon) such as such as manganese, silicon, nickel, titanium, copper, chromium and aluminium in addition. This creates an alloy which has specific properties that are not found in carbon steel.


To start a deeper and analytical look into the differences between the two plate, we must start by looking into the composition of the two plates.A grade 904L stainless steel is an austenitic stainless non-stabilized steel with very low carbon content.



CORTEN, otherwise called the weathering steel, was trademarked by the United States Steel Corporation (USS). This specific assortment is comprised ofan alloy of steel compounds to do away with the need of consistent painting and allow the formation of rust.



As Ernst & Young said, “Quality cannot be copied; there is no step-by-step cookbook that applies equally to all company situations and cultures.”



Stainless Steel Grade 904L is an austeniticnon-stabilized stainless steel with low carbon in its composition. Copper is added to the alloy to improve its resistance to strong reducing acids, such as sulphuric acid.



AA (Aluminium Alloy) 6061-T6 is an aluminium alloy which is precipitation-hardened. Precipitation hardening is a heat treatment technique which increases the yield strength of the malleablematerials, including most alloys of aluminium. AA 6061-T6 contains magnesium and silicon as the alloying elements which occupy a major stake in its making.




Stainless Steel Grade 904L is an austeniticnon-stabilized stainless steel with low carbon in its composition. Copper is added to the alloy to improve its resistance to strong reducing acids, such as sulphuric acid.The Stainless Steel Grade 904L also contains a good amount of expensive and rarecomponents or elements, such as nickel and molybdenum.




A grade 904L stainless steel is a stainless austenitic non-stabilized steel with very low carbon content. The alloy is stainless steel added with copper to improve its resistance against strong reducing acids like the sulphuric acid.


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