Steel plate model list
Steel plate model list
What model of steel plates are available?
Steel plate is one of the four major types of steel (plate, tube, profile, wire). In developed countries, steel plate production accounts for more than 50% of the total steel production. With the development of my country's national economy, steel plate production has gradually increased.
Steel plate is a flat steel with a large aspect ratio and large surface area. According to the thickness of the steel plate, it is divided into two specifications: thin plate and thick plate.
Thin steel plates are steel plates with a thickness between 0.2-4mm produced by hot rolling or cold rolling. The width of the thin steel plate is between 500-1400mm. According to different purposes, thin steel plates are rolled from billets of different materials. Commonly used materials include plain carbon steel, high-quality carbon steel, alloy structural steel, carbon tool steel, stainless steel, spring steel and silicon steel for electrical purposes. They are mainly used in the automobile industry, aviation industry, enamel industry, electrical industry, machinery industry and other sectors. In addition to delivery directly after rolling, thin steel plates are also pickled, galvanized and tinned.
Thick steel plate is a general term for steel plates with a thickness of 4mm or more. In actual work, steel plates with a thickness of less than 20mm are often referred to as medium plates, and steel plates with thicknesses >20mm to 60mm are called thick plates. It is rolled on the special thick plate rolling mill, so it is called special thick plate. The width of the thick steel plate is from 0.6mm-3.0mm. Thick plates are divided into shipbuilding steel plates, bridge steel plates, boiler steel plates, high-pressure vessel steel plates, pattern steel plates, automobile steel plates, armored steel plates, and composite steel plates.
A branch of the steel plate is the steel strip, which is actually a very long thin plate with a relatively small width. It is often supplied in coils, also called strip steel. Steel strips are often produced on multi-stand continuous rolling mills. The strips are cut to a fixed length, so the productivity is higher than that of single-sheet machines.
Medium and heavy plates
(1) Ordinary medium and thick steel plates
1. Plain carbon steel boiling steel plate (GB3274-88)
Ordinary carbon steel rimmed steel plate, as the name implies, is a steel plate made by hot rolling of rimmed steel of ordinary carbon structural steel. Boiling steel is a kind of steel with incomplete deoxidation. The molten steel has a high oxygen content. When the molten steel is injected into the ingot mold, carbon and oxygen react to produce a large amount of gas, causing the molten steel to boil.
Boiling steel has low carbon content, and because it does not use ferrosilicon for deoxidation, the silicon content in steel is often <0.07%. The outer layer of boiling steel is crystallized in the boiling state, so the surface layer is pure and dense, the surface quality is good, and the processing performance is good. Boiling steel does not have large concentrated shrinkage cavities, uses less deoxidizer, and has low steel cost. The core of boiling steel has many impurities, serious segregation, uneven mechanical properties, more gas content in steel, low toughness, cold brittleness and aging sensitivity, and poor welding performance, so it is not suitable for manufacturing to withstand impact load. Welded structural parts and other important structural parts that work at low temperatures.
(1) Main purpose
Boiling steel plates are widely used to manufacture various stamping parts, construction and engineering structures and some less important machine structures and parts. (2) Material grade, chemical composition and mechanical properties
Meet the requirements of boiling steel in GB700-79(88) (Technical Conditions for Common Carbon Structural Steel). See (section steel) and other parts. (3) Steel plate size
The thickness of the hot-rolled thick steel plate is 4.5-200mm.
(4) Production unit
Common carbon boiling steel plates are produced by Anshan Iron and Steel, Wuhan Iron and Steel, Maanshan Iron and Steel, Taiyuan Iron and Steel, Chongqing Steel Plant, Handan Iron and Steel Plant, Xinyu Steel Plant, Liuzhou Steel Plant, Anyang Steel and Steel Company, Yingkou Medium Plate Plant and Tianjin Steel Plant.
2. Plain carbon steel killed steel plate (GB3274-88)
Common carbon-killed steel plates are steel plates made by hot-rolling ordinary carbon structural steel killed billets. Killed steel is completely deoxidized steel. The molten steel is fully deoxidized with ferromanganese, ferrosilicon and aluminum before the ingot is injected. The molten steel is relatively calm in the ingot mold and does not produce a boiling state, so it is called killed steel.
The advantage of killed steel is that the chemical composition is uniform, so the mechanical properties of each part are also uniform, the welding performance and plasticity are good, and the corrosion resistance is strong. But the surface quality is poor, there are concentrated shrinkage holes, and the cost is also high.
(1) Main purpose
Ordinary killed steel plates are mainly used to produce components that withstand impact at low temperatures, welded structures and other structural parts that require higher strength.
(2) Material grade, chemical composition and mechanical properties
It complies with the requirements for killed steel in GB700-79(88) (Technical Conditions for Common Carbon Structural Steel). Refer to sections such as section steel.
(3) Steel plate size
Thickness of hot-rolled plate is 4.5-200mm.
(4) Production unit
Common carbon-killed steel plates are produced by Anshan Iron and Steel, Wuhan Iron and Steel, Wuyang Iron and Steel Company, Maanshan Iron and Steel, Taiyuan Iron and Steel, Chongqing Steel Plant, Handan Iron and Steel Plant, Xinyu Steel Plant, Liuzhou Steel Plant, Anyang Iron and Steel Company, Tianjin Steel Plant, Yingkou Medium Plate Plant, Shanghai The first and third steel plants, Shaoguan Iron and Steel Plant and Jinan Iron and Steel Plant, etc. produce.
3. Low alloy structural steel plate (GB3274-88)
The low-alloy structural steel plate is made of hot-rolled low-alloy structural steel. Low alloy steel plates are both killed and semi-killed steel plates. Its advantages are higher strength, better performance, saving a lot of steel, reducing structural weight, etc.
(1) Main purpose
Low-alloy structural steel plates are more and more widely used in machinery manufacturing and metal structural parts.
(2) Material grade and chemical composition
See the relevant part of section steel.
(3) Steel plate size
The thickness of the hot-rolled steel plate is 4.5-200mm.
(4) Production unit
Anshan Iron and Steel, Wuhan Iron and Steel, Wuyang Iron and Steel Company, Maanshan Iron and Steel, Chongqing Steel Plant, Xinyu Steel Plant, Liuzhou Steel Plant, Kunming Iron and Steel Company, Tianjin Steel Plant, Shaoguan Special Steel Plant, Anyang Iron and Steel Company, Shanghai Iron and Steel Plant No. .
4. Hot continuous rolled steel plate for general structure (GB2517-81)
(1) Main purpose
Mainly used for general structures such as buildings, bridges and vehicles.
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Size
The thickness of the steel plate (belt) is from 1.2-13.0mm; the width is from 700-1550mm; and the length is from 2000-12000mm.
5. Weather-resistant steel plate for welding structure (GB4172-84)
Weathering steel is atmospheric corrosion resistant steel. Weathering steel for welding structure is to add a small amount of alloying elements, such as steel, chromium, nickel, molybdenum, niobium, titanium, zirconium and vanadium to the steel to form a protective layer on the surface of the metal matrix to improve the weather resistance of the steel. And good welding performance.
(1) Main purpose
Mainly used in bridges, buildings and other structures.
(2) Material grade and chemical composition
(3) Mechanical properties
6. High weather resistance structural steel plate (GB4171-84)
Weathering steel is resistant to atmospheric corrosion. A small amount of alloying elements such as steel, phosphorus, chromium, nickel, molybdenum niobium, titanium, zirconium and vanadium are added to the steel to form a protective layer on the surface of the metal matrix to improve the weather resistance of the steel.
(1) Main purpose
Mainly suitable for buildings, vehicles, towers and other structural parts.
(2) Material grade and chemical composition
(3) Mechanical properties
7. Checkered steel plate (GB3277-82)
A checkered steel plate is a steel plate with diamond-shaped or lentil-shaped ribs on its surface. Its specifications are expressed by its own thickness (not counting the thickness of the rib).
(1) Main purpose
The tread plate has anti-skid effect, and is often used as floor, factory escalator, work frame pedal, ship deck and automobile bottom plate. (2) Material grade and chemical composition
The material of the pattern plate is rolled with ordinary carbon structural steel grades B1, B2 and B3, and its chemical composition meets the requirements of GB700-79 (technical conditions for ordinary carbon structural steel).
(3) Specification and theoretical weight of steel plate
(4) Production unit
Produced by Angang Steel and Anyang Iron and Steel Company.
8. Steel plate for bridge (YB168-70)
Bridge steel plates are steel plates specially used to build railway or highway bridges. It is required to have high strength, toughness and to withstand the load and impact of rolling stock, and have good fatigue resistance, certain low temperature toughness and atmospheric corrosion resistance. The steel for tie-welding bridges should also have good welding performance and low notch sensitivity.
(1) Main purpose
Mainly used for structural parts of railway bridges and highway bridges whose span is between 46-160mm.
(2) Material number and chemical composition
(3) Mechanical properties
(4) Specifications and production units
Specifications: thickness from 6-50mm, width from 1.0-2.4mm, length from 2.0-16mm
my country's steel plates for bridges are produced by Anshan Iron and Steel, Wuhan Iron and Steel, Shanghai Steel No. 3 Plant and Chongqing Steel Plant.
9. Steel plate for hull structure (GB712-88)
Steel plates for hull structure are referred to as marine plates. Due to the harsh working environment of ships, the hull of the ship is subject to seawater chemical corrosion, electrochemical corrosion, marine organisms, and microbial corrosion; the hull bears large wind and wave impacts and alternating loads; the shape of the ship makes its processing method complicated, so it is not The steel requirements for hull structure are strict. First of all, good toughness is the most critical requirement. In addition, high strength, good corrosion resistance, welding performance, processing and forming performance and surface quality are required. In order to ensure quality and ensure sufficient toughness, the chemical composition of Mn/C is required to be above 2.5, and the carbon equivalent is also strictly required, and it is produced by a steel plant approved by the ship inspection department.
There are two types of structural steel for hulls: general thickness and high-strength steel. General-strength steel is divided into four grades of A, B, C and D according to quality; high-strength steel is divided into two strength grades and three quality grades; AH32, DH32, EH32, AH36, DH36, EH36.
(1) Main purpose
Used to manufacture steel plates for the hull and deck of ocean-going, coastal and inland navigation ships.
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Specifications and production units
Specifications: thickness 4.5-50mm, width 1.0-2.2m, length 4.0-12.0m
my country is mainly produced by Wuhan Iron and Steel, Maanshan Iron and Steel, Shanghai Iron and Steel No. 1 and No. 3 plants, Taiyuan Iron and Steel, Kunming Iron and Steel Company and Tianjin Steel Plant.
10. Steel plate for boiler (GB713-86)
According to the purpose, boilers are divided into two categories: industrial boilers and power station boilers. Industrial boilers are usually used by industrial enterprises for heating. They are small boilers. The steel used is ordinary carbon structural steel and low-alloy structural steel. Power station boilers are large and medium-sized boilers, which have special requirements for steel quality, and generally require alloy steel with excellent comprehensive properties to be manufactured.
(1) Main purpose
Mainly used to make fixed boilers, ship-hull boilers and other important boiler accessories.
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Specification and size of steel plate
The thickness of the steel plate ranges from 6-120mm.
(5) Production unit
Boiler steel plates are produced by Anshan Iron and Steel, Wuhan Iron and Steel, Shanghai Steel No. 3 Plant, Wuyang Iron and Steel Company, Liuzhou Steel Plant, Chongqing Iron and Steel Plant, Taiyuan Iron and Steel Company, Kunming Iron and Steel Company, etc.
11. Steel plate for container (GB6654-86 GB6655-86)
The steel plate used for the container has to withstand different pressures and strengths due to the manufactured containers. Normal pressure is generally 31.4MPa or higher; working temperature is usually between -20℃-450℃, and some are lower than -20℃. According to the working conditions and processing technology of the container, the steel plate for the container must have good cold bending and welding performance; good plasticity and toughness; high temperature short-term strength or long-term strength performance. In order to enable the container to withstand higher pressure and reduce the weight of the structure itself, in addition to high-quality carbon steel, the steel plate material for the container is currently mostly low-alloy structural steel. Container plates are divided into carbon steel and low-alloy steel plates for the pressure poor, and low-alloy steel plates for multi-layer pressure vessels.
(1) Main purpose
The pressure vessel steel plate is a special plate, which is mainly used to manufacture petroleum, chemical, gas separation, storage and transportation vessels or other similar equipment, such as various tower vessels, heat exchangers, storage tanks and tank cars.
(2) The anthropological composition and mechanical properties of types and materials
1) Chemical composition and mechanical properties of carbon steel and low alloy steel thick steel plates for pressure vessels
Specifications and production units: The thickness of the steel plate is 6-100mm.
Steel plates for pressure vessels are produced by Anshan Iron and Steel, Wuhan Iron and Steel, Chongqing Steel Works, Wuyang Iron and Steel Company, Taiyuan Iron and Steel, Shanghai Iron and Steel No. 3 Plant, Tianjin Steel Works and Maanshan Iron and Steel.
2) Chemical composition and mechanical properties of low-alloy steel plates for multilayer pressure vessels
Steel plate specifications, dimensions and production units: thickness is 6-8mm (1mm difference); width and length are any size of 50mm times, but the minimum width is 600mm and the minimum length is 1200mm.
The main production units are Anshan Iron and Steel, Wuhan Iron and Steel, Chongqing Steel Works, Taiyuan Iron and Steel, etc.
3) Chemical composition and mechanical properties of low-alloy steel plates for low-temperature pressure vessels
Steel plate specifications and dimensions: the thickness of low-alloy steel plates for low-temperature pressure vessels ranges from 6-50mm.
The main production units are Anshan Iron and Steel, Wuhan Iron and Steel, Chongqing Steel, Wuyang Iron and Steel Company, Taiyuan Iron and Steel, Shanghai Iron and Steel No. 3 Plant, Tianjin Steel and Maanshan Iron and Steel.
High-quality medium and heavy plates
12. Steel plate for welding gas cylinders (GB6653-86)
The steel plates for welding gas cylinders are made of high-quality carbon structural steel and low-alloy structural steel. Since welding gas is used under certain pressure, the control of chemical composition and mechanical properties is also strict. The brand of welded gas cylinder steel is followed by "HP" (the abbreviation for welded cylinder in Chinese Pinyin) to show the distinction.
(1) Main purpose
Steel plates for welded gas cylinders are mainly used to produce gas cylinders with lower air pressure, such as petroleum gas cylinders.
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Steel plate size
The thickness of the steel plate for welding gas cylinders ranges from 2.5-12mm.
13. Cladding steel plate (corporate standard)
In order to save the amount of stainless, acid-resistant and heat-resistant steel, some containers and structural parts are made of composite steel plates. The clad steel plate is a bimetal plate with ordinary carbon structural steel, high-quality carbon structural steel and low alloy steel as the base (base layer), and stainless acid and heat-resistant steel can be used as the surface (multilayer) on its surface.
(1) Main purpose
Mainly used to manufacture structural parts and containers resistant to acid, alkali, atmosphere and corrosive media.
(2) Material grade and chemical composition
1) The grade, chemical composition and mechanical properties of the base material.
2) The grade, chemical composition and mechanical properties of the multilayer material
Multilayer material grades: 0Cr19Ni9, 1Cr19Ni9, 00Cr19Ni11, 0Cr17Ni12Mo2, 00Cr17Ni14Mo2, 1Cr18Ni9Ti, 0Cr18Ni11Ti, 0Cr18Ni11Nb (austenitic type), 1Cr13, 0Cr13, 2Cr13, 3Cr13 (martensitic type). Its chemical composition meets the requirements of GB4237 (stainless steel hot-rolled steel plate) (refer to the previous section) (3) Steel plate specifications, dimensions and production units
Production unit: my country has production in Chongqing Steel Plant.
14. Steel plates for automobiles (GB3273-89)
Automobile steel plates are mainly used to manufacture automobile beams (longitudinal and cross beams), frame and other structural parts. Automobile beams not only have to withstand heavy static loads, but also have to withstand certain shocks, vibrations, etc., so the steel plate is required to have a certain strength and fatigue resistance, and it requires better stamping performance and cold bending performance to be suitable for cold stamping For forming processing requirements, most of our country now uses low-alloy structural steel with lower carbon content as material.
(1) Main purpose
Mainly used to manufacture structural parts such as automobile beams and frame.
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Steel plate size (mm)
Thickness: 2.5-12.0mm; width: 210-1800mm; length: 2000-10000mm.
Our country has Anshan Iron and Steel, Shanghai Iron and Steel No. 3 Plant, Chongqing Steel Plant, Chongqing Special Steel Plant and Kunming Iron and Steel Company and other units.
15. Hot-rolled three-layer steel plate for plough wall (GB11252-89)
The plough wall uses a hot-rolled three-layer steel plate, which is used to manufacture the plough wall of a machine-driven or livestock-driven plow. Since the plough wall undertakes soil cutting, crushing and turning operations, it is required to have high wear resistance, a smooth surface and sufficient toughness. The three-layer steel plate for plough wall is made of composite rolling of hard outer layer and soft middle layer. The hard outer layer is made of 65 steel or 70-85 steel, and the soft middle layer is made of Q235 or B2 steel.
(1) Main purpose
The plough wall uses a hot-rolled three-layer steel plate, which is used to manufacture the plough wall of a motorized and animal-drawn plow.
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Steel plate specifications and production units
Steel plate thickness: 5, 6, 8, 9 and 10 (mm), width 1.4m-1.8m, length ≤9m, production unit: Specially produced by Chongqing Steel Plant.
High-quality medium and heavy plates
1. High-quality carbon structural steel hot-rolled medium and thick steel plates (GB711-88)
High-quality carbon structural steel hot-rolled medium-thick steel plate is referred to as carbon structural steel thick steel plate, that is, its material is high-quality carbon structural steel, which is made by hot rolling, and is also delivered in normalized, annealed or tempered state.
(1) Main purpose
Mainly used to manufacture mechanical structural parts
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Steel plate specifications and production units
The thickness of the steel plate is from 4.5-60mm, the extra-thick plate is 150mm; the width is from 0.8-3.2m; the length is from 2-12m.
my country's production of carbon structural thick steel plates includes Anshan Iron and Steel, Wuhan Iron and Steel, Wuyang Iron and Steel Company, Chongqing Special Steel Plant, Taiyuan Iron and Steel, Shanghai Steel No. 3 Plant, Fushun Steel Plant and Tianjin Steel Plant.
2. Premium carbon hot-rolled thick steel plate for automobile manufacturing (GB3275-82)
High-quality carbon structural steel hot-rolled thick steel plates for automobile manufacturing are made of high-quality carbon structural steel by hot rolling. According to production
The processing method and depth are different, divided into deep drawing (S), ordinary drawing (P) and cold forming (W). (1) Main purpose
Mainly used in the manufacture of automotive cold stamped parts and cold-formed parts.
(2) Material grade and chemical composition
(3) Mechanical properties and other inspections
(4) Steel plate specifications and production units
The production specifications and dimensions of the excellent carbon hot-rolled steel plate for automobile manufacturing: thickness 4.5-14mm, width and length according to GB709 standard. Manufacturers that produce high-quality carbon structural steel hot-rolled thick steel plates can produce them.
3. Carbon tool steel thick steel plate (GB3278-82)
Carbon tool steel thick plates are made of carbon tool steel through hot rolling. This type of steel plates have good cold and hot workability, high hardness and plastic resistance, low production costs, and a wide range of applications. The main disadvantages are poor thermal hardening and poor hardenability, and are generally delivered in annealed or high-temperature tempered state.
(1) Main purpose
It is mainly used to manufacture cutting tools, measuring tools and molds with low cutting speed, simple shape and low precision requirements.
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Steel plate specifications, dimensions and production units
The thickness of the steel is 4.5-25mm, and the width and length of the steel plate meet the requirements of GB709.
Main production units: Chongqing Special Steel Plant, Fushun Steel Plant and Chongqing Steel Plant, etc.
4. Alloy structural steel thick steel plate (GB11251-89)
Alloy structural steel thick steel plate is made of alloy structural steel through hot rolling.
(1) Main purpose
Widely used in mechanical structural parts such as temperature and corrosion resistance.
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Steel plate specifications and production units
The thickness of the steel plate is 4.5-50mm, and the group distance is divided into two groups of 4.5-8 and over 8mm. The width and length of the steel plate are specified in GB709.
Manufacturers include Anshan Iron and Steel, Chongqing Special Steel Plant, and Shanghai Steel No. 3 Plant. Usually delivered in normalized, annealed or tempered state.
5. Thick steel plate for aviation (YB540-65)
Aviation steel plate is made of alloy structural steel, which is made by hot rolling or cold rolling.
(1) Main purpose
Aviation steel plate is a special steel plate suitable for the aviation industry.
(2) Material number and chemical composition
(3) Mechanical properties
(4) Stamping performance and surface condition (divided into three groups)
(5) Steel plate specifications and production units
The thickness of the steel plate is 4.5-8mm, the width is 0.75-1.00mm, and the length is 1-2.00mm. Produced by Chongqing Special Steel Plant and other units.
6. High-speed tool steel thick plate (GB994-88)
High-speed tool steel plate is made of high-speed tool steel, which is hot-rolled or cold-rolled.
(1) Main purpose
Mainly used for manufacturing cutting tools.
(2) Material grade and chemical composition (GB9943-88)
(3) Mechanical properties
(4) Steel plate specifications, dimensions and production units
Steel plate thickness: 4.5-12mm, width: 0.65-1.00m, length: 1.00-2.00m.
It is produced by Fushun Steel Plant, Chongqing Special Steel Plant and Great Wall Steel Plant.
7. Stainless steel hot-rolled thick steel plate (GB4237-84)
Stainless steel hot-rolled steel plate is made of stainless steel after hot rolling. According to its organizational characteristics, it can be divided into five types: austenite type, austenite-ferrite type, ferrite type, martensite type and precipitation hardening type.
(1) Main purpose
Stainless steel hot-rolled thick steel plates are widely used in aviation, petroleum, chemical, textile, food and medical equipment and other industrial sectors to manufacture components, containers, and mechanical parts that require resistance.
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Specification, size and production unit of steel plate
The thickness of the steel plate is 4.5-25mm, the width is 0.6-1.8m, and the length is 1.0-6.5m.
Production units: Chongqing Special Steel Plant, Fushun Steel Plant, Shanghai Steel No. 3 Plant, Great Wall Steel Plant and Taiyuan Iron and Steel Co., Ltd.
8. Heat-resistant steel thick steel furnace (GB4238-84)
Heat-resistant steel thick steel plates are made of heat-resistant steel and processed by hot rolling. According to its organizational characteristics, it can be divided into four types: austenite, ferrite, martensite and precipitation hardening.
(1) Main purpose
It is widely used in the manufacture of components such as petroleum, chemical equipment, boilers, steam turbines, industrial furnaces and other components that work at high temperatures.
(2) Material grade and chemical composition
(3) Mechanical properties
(4) Specification, size and production unit of steel plate
The size of the steel plate meets the requirements of GB709. Common specifications and production units are the same as those listed in the section "Stainless Steel Thick Steel Plates". 9. Electromagnetic pure iron hot-rolled thick steel plate (GB6984-86)
Electromagnetic pure iron hot-rolled thick steel plate is made of pure iron for electrical purposes and processed by hot rolling.
(1) Main purpose
Mainly used to manufacture general electromagnetic components and non-magnetic aging electromagnetic components.
(2) Material grade and chemical composition
(3) Electromagnetic performance
(4) Steel plate specifications and production units
Steel plate thickness: 4.5-20mm, width: 1.00-1.80m, length: 4-9.0m, and it can also be rolled.
It is produced by Taiyuan Iron and Steel Co., Ltd. and Shanghai Steel No. 3 Plant.
Thin steel plate
Steel plates with a thickness less than or equal to 4mm are called thin steel plates. Thin steel plates can be divided into ordinary thin steel plates and high-quality thin steel plates according to their different materials; according to their production and processing methods, they can be divided into two types: hot rolling and cold rolling.
(1) Ordinary thin steel plate
Ordinary steel sheet is the abbreviation of ordinary carbon structural steel sheet. The material of ordinary sheet is ordinary carbon structural steel. It is processed by hot and cold rolling.
1. Hot rolled ordinary thin steel plate
Hot-rolled ordinary thin steel plates can be divided into ordinary thin steel plates, pickled thin steel plates, roof panels, oil drum plates, pattern steel plates, shipbuilding steel plates and automotive steel plates according to their different uses.
1) Hot rolled ordinary thin steel plate (GB912-89, GB708-88)
Hot-rolled ordinary sheet is commonly called black iron sheet, which is named after the cloud blue-black surface of the steel sheet.
(1) Main purpose
Mainly used to manufacture products that do not require high surface quality and do not require deep drawing processing, such as ventilation ducts, mechanical covers, switch boxes, filing cabinets, etc., and are also commonly used as blanks for welded pipes and cold-formed steel. It is widely used in various industrial sectors.
(2) Material grade and chemical composition
It meets the requirements of GB700-88 carbon structural steel chemical composition and GB700-79 (technical conditions for ordinary carbon structural steel).
(3) Mechanical properties
It meets the requirements of GB700-88 and GB700-79 (technical conditions of ordinary carbon structural steel).
(4) Steel plate specifications, dimensions and production units
The size of the steel plate conforms to the GB709 regulations (after the plate type is attached). Thickness order group pitch: 0.5-0.6, 0.7-0.8, 0.9-1.0, 12-1.25, 1.4-1.5, 1.75-2 and 2.5-4 (mm).
Production units: Shougang, Kunming Iron and Steel Company, Tianjin No. 1 Steel Rolling Plant, Shenyang Thin Plate Plant, Changchun Thin Plate Plant, Hankou Thin Plate Plant, Liuzhou Steel Plant, Hangzhou Iron and Steel Plant, Hengyang Steel Rolling Plant, Jiangxi Steel Plant and Nanjing Iron and Steel Plant, etc.
2) Pickling thin steel plate (YB178-65)
Pickled steel sheets are made of low-carbon ordinary steel sheets after annealing and pickling. After annealing and pickling treatment, the surface oxide layer is removed, the surface is bright white, and the stamping performance is also improved to a certain extent. This kind of steel plate is suitable for manufacturing products that require good surface quality, stamping but not high strength requirements.
The pickled steel sheet can be divided into two groups according to its surface quality, Ⅰ and Ⅱ; according to its cupping depth, it can be divided into two levels: ordinary (P) and deep drawing (S).
(1) Main purpose
Mainly suitable for such as alarm shells, flashlight shells, instrument shells, lamp sockets, automobile brake drums, etc.
(2) Steel plate size
The thickness of the steel plate is 0.25-2mm.
Note: The grade, chemical composition and mechanical properties of the steel plate are the same as the previous section (hot rolled ordinary thin steel plate).
3) Thin steel plate for oil drum (GB3276-89)
(1) Main purpose
(1) Main purpose
It is specially used to manufacture the barrel, lid and bottom of 200L (liter) oil barrels.
(2) Material grade and chemical composition
The material of the oil drum thin steel plate is made of ordinary carbon structural steel 2# and 3# killed steel (in accordance with GB700 regulations) and high-quality carbon structural steel 08 and 10 steel.
