Stainless steel wire mesh type of material should be chosen in the industry?
considering the practical application in various fields of stainless steel materials, corrosion resistance, toughness, strength and the strength of the weldability of difference, when choosing the stainless steel wire mesh, should mainly consider the choose what kind of material.
and ferritic stainless steel, chromium % ~ %.
Its corrosion resistance, toughness and weldability with chromium content increases with the increase of chloride stress corrosion resistance is superior to other types of stainless steel.
Fall into this category of Crl, CrMoTi, Cr, CrMoTi, Cr, etc.
Ferritic stainless steel because of the high chromium content, corrosion resistance and oxidation resistance are relatively good, but the mechanical properties and process performance is poorer, more used to stress less acid structure and steel used as antioxidant.
This kind of steel to withstand atmosphere, nitric acid and corrosion of the brine solution, and has good high temperature oxidation resistance, low thermal expansion coefficient, etc, used in nitric acid and food factory equipment, also can make work under high temperature parts, such as gas turbine parts, etc.
and austenitic stainless steel, chromium is more than %, also contains about % nickel and small amounts of molybdenum, titanium, nitrogen and other elements.
Good comprehensive performance, corrosion resistant to a variety of media.
Number of austenitic stainless steel commonly used have CrNi, CrNi, etc.
CrNi steel wC<
%, marked as in the steel grade & other;
This class contains large amounts of Ni and Cr in steel, make steel in austenitic state at room temperature.
This kind of steel has good plasticity and toughness, weldability and corrosion resistance, corrosion resistance in oxidizing and reducing medium are good, used to make acid equipment, such as corrosion resistant containers and equipment lining, pipelines, nitric acid resistant equipment parts, etc.
Austenitic stainless steel with solid solution treatment, the steel is heated to ~ ℃, and water, for single-phase austenitic organization.
duplex stainless steel, austenitic ferrite: the advantages of both austenitic and ferritic stainless steel, and has the superplasticity.
Organization in austenite and ferrite accounted for about half of the stainless steel.
In the case of contain low C, Cr content in % ~ %, Ni content in the % ~ %.
Some steel containing Mo, Cu, Si, Nb, Ti, N and other alloying elements.
This kind of steel both austenite and ferrite stainless steel, the characteristics of compared with ferrite, plasticity and toughness is higher, no room temperature brittleness, intergranular corrosion resistance and welding performance were significantly increased, while maintaining a ferritic stainless steel ℃ brittleness and high thermal conductivity, has the characteristics of superplasticity.
Compared with austenitic stainless steel, high strength and resistance to intergranular corrosion and resistance to chloride stress corrosion is improved obviously.
Duplex stainless steel has excellent resistance to pitting corrosion performance, is also a kind of nickel and stainless steel.
and martensitic stainless steel, high strength, plasticity and poor weldability.
Number of martensite stainless steel commonly used such as Cr, Cr, due to high carbon, it has high strength, hardness and wear resistance, corrosion resistance is a bit poor, however, higher requirements for mechanical properties, corrosion resistant performance requirements generally over some of the parts, such as spring, turbine blades, hydraulic valves, etc.
This kind of steel is used after quenching and tempering treatment.