What Stainless Steel Grades Exists?

Stainless steels are mainly used when corrosion or oxidation is a problem, since their functions can not be replaced by other materials at their cost. More than 100 years ago, it was discovered that at least 12% of chromium provides resistance to steel due to corrosion and oxidation; Hence the name “stainless steel”. Different types of stainless steel were developed. Below you will find explanations of various grades of stainless steel.

Austenitic Classes

Austenitic stainless steels Austenitic steels are commonly used alloys in stainless steel applications. Austenitic qualities are not magnetic. The most common austenitic alloys are those of iron-chromium-nickel, commonly known as 300 series. Thanks to the high content of chromium and nickel, austenitic stainless steels are the most resistant to corrosion in the stainless steel family. Exceptionally good mechanical properties They can not be treated with heat treatment, but can be significantly cold.
Arthur Harris mainly uses austenitic stainless steels, such as 304 and 316, from floating balls to stainless steel fittings.

Degrees of martensite

Martensitic steels Martensitic steels have been developed to provide a group of corrosion resistant and resistant stainless alloys during heat treatment. The martensitic types (also known as 400 series) are chrome straight steels that are nickel free and are also magnetic. Martensitic types are mainly used when hardness, strength and wear resistance are required.

Ferritic Classes

Ferritic stainless steel Ferritic grades have been developed to provide a corrosion and corrosion resistant stainless steel assembly, offering high resistance to stress corrosion. These steels are magnetic but can not be hardened or reinforced by heat treatment. It can be worked cold and softened by annealing. In general, they are more resistant to corrosion than martensitic ones, but in general, they are less than austenitic. These are nickel-chromium steels, such as martensitic shades. They are used for decorative finishes, sinks and automotive applications.

DUPLEX GRADES

The duplex qualities are the new stainless steel. This material is a combination of austenitic and ferritic material. This material has higher resistance and resistance to stress corrosion.

CHARACTERISTICS OF THE TREATMENT OF VARIETIES.

Steel for sediment hardening. Tempered sediment steel offers the designer a unique combination of strength, strength, ease of heat treatment and resistance to corrosion of the fabric, which is found in no other material. Despite the fact that martensitic alloys, mainly intended for the production of bars, rebar, wires and forgings, the martensitic alloys that precipitate during precipitation are increasingly used in flat steel. Many of these steels, developed primarily as aerospace materials, are increasingly recognized as profitable materials in many applications.