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Hot Rolled Steel Coils And Plates The Organizational Characteristics Of Steel
- Nov 01, 2017 -

hot rolled steel coils and plates The organizational characteristics of steel

Two kinds of hot rolling and cold rolling are classified according to the organization characteristics of the steel. They are classified into five types: austenitic, austenitic-ferrite, ferrite, martensite and precipitation hardening. It is resistant to various acids such as oxalic acid, sulfuric acid-ferric sulfate, nitric acid, nitric acid-hydrofluoric acid, sulfuric acid-copper sulfate, phosphoric acid, formic acid and acetic acid. It is widely used in chemical, food, medicine, paper, oil and so on. Industrial, as well as construction, kitchen utensils, tableware, vehicles, household appliances various types of components.

Stainless steel plate surface smooth, have a high plasticity, toughness and mechanical strength, acid, alkaline gases, solutions and other media corrosion. It is a kind of stainless steel is not easy to rust, but not absolutely no rust.

Stainless steel plate by the method of sub-hot rolling and cold rolling of the two, including the thickness of 0.02-4 mm thin plate and 4.5-100 mm plate.

In order to ensure the yield strength, tensile strength, elongation and hardness of various stainless steel plates meet the requirements, the steel sheet must be annealed before heat treatment, solution treatment, aging treatment and other heat treatment 05.10 88.57.29.38 special symbols

The corrosion resistance of stainless steel depends mainly on its alloy composition (chromium, nickel, titanium, silicon, aluminum, etc.) and the internal structure, the main role is the chromium element. Chromium has a high chemical stability, can form a passive film on the steel surface, so that the metal and the outside isolation, to protect the steel plate is not oxidized, increase the corrosion resistance of steel plate. After the passivation film is damaged, the corrosion resistance decreases.

National character

Tensile strength (Mpa) 520

Stainless steel coil

Stainless steel coil

Yield strength (Mpa) 205-210

Elongation (%) 40%

Hardness HB187 HRB90 HV200

304 stainless steel density 7.93 g / cm3 austenitic stainless steel generally use this value 304 chromium content (%) 17.00-19.00, nickel content (%) 8.00-10.00,304 equivalent to China's 0Cr19Ni9 (0Cr18Ni9) stainless steel

304 stainless steel is a versatile stainless steel material, rust-proof performance than the 200 series of stainless steel materials to be strong. High temperature is also better.

304 stainless steel has excellent corrosion resistance and good resistance to intergranular corrosion. Many types of stainless steel plate, different performance, it is in the development process of classification

Stainless steel plate is generally stainless steel plate and acid-resistant steel plate in general. Stainless steel plate refers to the resistance to atmospheric, steam and water and other weak media corrosion of steel, and acid-resistant steel plate is acid, alkali, salt and other chemical erosion of corrosion of the plate. Stainless steel plate since the beginning of this century, the development of stainless steel for the development of modern industry and scientific and technological progress has laid an important material and technical basis. Stainless steel plate a lot of different types of properties, it is in the development process gradually formed several categories. According to the organizational structure is divided into austenitic stainless steel plate, stainless steel plate (including precipitation hardening stainless steel plate), ferritic stainless steel plate, and austenitic ferritic two-phase stainless steel plate and other four categories?