These kinds of steel are many of the most frequently specified or have come to symbolize the embodiment of the standard stainless steel product. They may be an important part of the 300 Series of steels ( as described in SAE requirements ) which deals with a range of austenitic chromium-nickel alloys . Also they are referred to as 18/8 stainless steel because of their element composition which include approximately 18% chromium and also 8% nickel by weight. The steels are simple to form, weld , and also manufacture and their resistance to rust from , among other items , acids normally contained in food have resulted into them put into use widely in the food and also drink processing industries .
Type 304 and then Type 304L have identical chemical and also mechanised properties and are usually mixed on a single material check certificate while the real properties of a stainless-steel plate met the criteria of both types. This is certainly a very popular occurrence. Type 304L is a variation of Type 304 and also have a low carbon content which enhances weldability and reduces the risk of lowered corrosion resistance around the weld. Type 304L also offers a little reduced yield and tensile energy than Type 304.