Special performance steels: Properties and uses of stainless steel
Special performance steels are steels used to manufacture components and parts with special physical or chemical properties under special working conditions or under special conditions. There are many kinds of this steel, including stainless steel, acid resistant steel, heat resistant steel, wear resistant steel and so on. Let's talk about stainless steel in special performance steel to understand its performance and use.
Classification of stainless steel
According to the microstructure, it can be divided into martensitic steel, ferrite steel, austenitic steel, austenite-ferrite (duplex) stainless steel and precipitation hardening stainless steel.
According to the composition: chromium stainless steel, chromium nickel stainless steel and chromium manganese nitrogen stainless steel.
Physical and chemical properties
Ferritic stainless steel: corrosion resistance, toughness and weldability with the increase of chromium content and improve, chromium 12%-30%, corrosion resistance and oxidation resistance are better, but the mechanical properties and process performance is poor, mostly used for the use of acid resistant structure and oxidation resistance steel with little force.
Austenitic stainless steel: good comprehensive performance, good shaping, toughness, weldability, corrosion resistance and weak magnetic.
Austenite-ferrite (biphasic) stainless steel: has the advantages of both ferrite and austenitic stainless steel, and has superplasticity.
Martensitic stainless steel: higher carbon content, with relatively strong strength, hardness and wear resistance, but poor corrosion resistance.
Use
Ferritic stainless steel: Used for nitric acid and food factory equipment or parts working at high temperature, etc
Austenitic stainless steel: Used to make acid-resistant equipment, food processing equipment, kitchen utensils, medical equipment and stainless steel watch accessories main material, etc.
Austenite-ferrite (DUPLEX) STAINLESS steel: used to make acid-resistant equipment, stainless steel watch jewelry main material, etc.
Martensitic stainless steel: used for parts with high mechanical properties and general corrosion resistance requirements, such as springs, hydraulic press valves, etc.
Which type of stainless steel to choose depends on the application and your needs.
Application of cold-rolled sheet ST37-2GThe excellent performance of cold-rolled sheet ST37-2G has made it widely used in many fields. In the automotive manufacturing industry, due to its high strength and good processing performance, ST37-2G cold-rolled sheet is often used to manufacture body structural parts, chassis parts and interior decorative parts. This material can not only meet the requirements of automobile manufacturing for material strength and rigidity, but also ensure the precision and appearance quality of parts.
Cold rolled steel plate for enamelSince the advent of cold-rolled steel plates for enamel, it has demonstrated excellent performance and wide application prospects in various industries. This material provides strong support for modern industrial production with its unique physical and chemical properties.- Comprehensive understanding of Baosteel’s cold rolled productsCold-rolled carbon steel, cold-rolled low carbon steel, stamping steel, carbon structural steel, phosphorus-added high-strength steel,
bake-hardened high-strength steel, duplex high-strength steel, low-alloy high-strength steel, battery case steel, precision welded pipe steel. - Baosteel Hot Rolled Pickled Automobile SheetHot-rolled pickling products are increasingly used in automobile manufacturing, auto parts and other industries due to their unique advantages such as surface quality and saving process energy consumption, and have become the main materials for automobile chassis, wheels, seats, safety components, etc. .
Hot-rolled Automotive Steel SheetsWith the increasing awareness for safety, energy saving and environment protection, there is an urge for high strength steel for automotive. Hot-rolled high strength steel sheets, which are widely used in wheel, beam, carriage, axle, drive shaft, chassis, suspension and other important parts, can provide great potential for weight reduction.
Rolled composite steel plate/coilRolled composite steel plates use carbon structural steel, low-alloy high-strength structural steel or high-strength quenched and tempered steel as the base plate, and use composite rolling technology to organize one or both sides with stainless steel, special steel and other materials. After a certain degree of combination, the composite steel plate is obtained.
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