439 Stainless Seamless Tube 439 steel is to reduce the content of C on the basis of ordinary ferrite material (430), while adding Ti and other stabilizing elements, so that the resistance to intergranular corrosion, formability and weldability of the steel are improved. Compared with 304 steel, although the elongation is lower (about 30%), but the strength, corrosion resistance is equivalent, and corrosion resistance is better than 200 series materials.

420J2 Stainless Seamless Tube has certain wear resistance and corrosion resistance, high hardness, its price is a lower class of stainless steel ball, suitable for the common requirements of stainless steel working environment. Suitable for all kinds of precision machinery, bearings, electrical, equipment, instruments, meters, transportation vehicles, household appliances, etc. It is mainly used to make parts that are resistant to atmospheric, water vapor, water and oxidizing acid corrosion

420J1 Stainless Seamless Tube features and scope of application: It has certain wear resistance and corrosion resistance, high hardness, its price is the lower class of stainless steel ball, suitable for the common requirements of stainless steel working environment. Suitable for all kinds of precision machinery, bearings, electrical, equipment, instruments, meters, transportation vehicles, household appliances, etc. It is mainly used to make parts that are resistant to atmospheric, water vapor, water and oxidizing acid corrosion.

409L Stainless Seamless Tube.409L stainless steel has excellent corrosion resistance, suitable for extending the life of the car and the lightweight of the car, and as a recyclable environmental protection material.

430 Stainless Seamless Tube is a general steel with good corrosion resistance, good thermal conductivity than austenite, thermal expansion coefficient is smaller than austenite, heat resistance fatigue, add stabilizing element titanium, good mechanical properties of weld parts. Used for building decoration, fuel burner parts, household appliances, household appliances.

304H Stainless Seamless Tube has good oxidation resistance and thermal stability in high temperature environment, can maintain a long service life in high temperature oxidation environment. With good resistance to chemical penetration, it has a good application prospect in sealing parts, storage tanks and other occasions that need to prevent chemical penetration.

317L Stainless Seamless Tube is more resistant to chemical corrosion than conventional chromium-nickel austenitic stainless steel such as alloy 304. In addition, compared with conventional stainless steel, 317L alloy has higher ductility, stress corrosion resistance, compressive strength and high temperature resistance. It is low carbon grade or L grade, which is resistant to sensitization during welding and heat treatment

309S Stainless Seamless Tube is free cutting stainless steel containing sulfur, is a variant of the lower carbon 309 stainless steel, used for welding situations. It can withstand repeated heating below 980 ℃, and has high high temperature strength, oxidation resistance and carburizing resistance. Widely used in boiler, energy, industrial furnace, incinerator, heating furnace, chemical industry, petrochemical and other important fields.

316L Stainless Seamless Tube due to the addition of Mo, 316L stainless steel has excellent corrosion resistance, especially pitting corrosion resistance; High temperature strength is also very good; Excellent work hardening (weak magnetism after processing); The solid solution state is non-magnetic.