Ordinary medium-thickness steel plate: Ordinary medium-thickness steel plate refers to ordinary carbon structural steel or low alloy structural steel hot-rolled steel plate, mainly including: ordinary carbon boiling steel plate, ordinary carbon sedentary steel plate, low alloy steel plate, steel plate for bridges, steel plate, making the general steel plate, boiler steel plate, pressure vessel steel plate, patterned steel plate, automobile beam steel plate.
The use of ordinary plate is widely used in the manufacture of various containers, furnace shells, furnace plates, bridges and automobiles, tractors, some parts and welding components.
Bridge steel plate is used for large-scale railroad bridges. Requirements to withstand dynamic loads, impact, vibration, corrosion resistance.
Shipbuilding steel plate: used in the manufacture of marine and inland waterway ship hull. Requirements for high strength, plasticity, toughness, cold bending performance, welding performance, corrosion resistance are good.
Boiler steel plate: used in the manufacture of various boilers and important accessories, due to the boiler steel plate in the medium temperature (350 ° C or less) high-pressure work, in addition to bearing high pressure, but also subject to impact, fatigue load and water and gas corrosion, the requirements to ensure a certain level of strength, but also has good welding and cold bending properties.
Pressure vessel steel plate: mainly used in the manufacture of petroleum, chemical gas separation and gas storage and transportation of pressure vessels or other similar equipment, the general working pressure at atmospheric pressure to 320kg/cm2 or even to 630kg/cm2, the temperature in the -20-450 ° C range of work, the requirements of the container steel plate in addition to a certain degree of strength and good plasticity and toughness, but also must have a better cold bending and welding properties. Welding performance.
Automotive beam steel, used in the manufacture of automotive beams (longitudinal beams, beams) with a thickness of 2.5-12.0mm of low-alloy hot-rolled steel plate. By the complex shape of the automobile beam, in addition to the requirement of high strength and cold bending performance, the requirement of good stamping performance.
Patterned steel plate: hot rolled diamond-shaped, lentil-shaped, bean-shaped thickness of 2.5-8.0mm patterned steel plate with carbon structural, hull structural steel. Patterned plate due to the presence of patterns on the surface to increase the anti-slip ability, used in the manufacture of plants, ships, escalators, work platforms, work pedals and so on.
High-quality medium-thickness plate: refers to a variety of high-quality steel hot-rolled steel plate, according to the material and use is divided into: high-quality carbon structural steel plate, carbon tool steel plate, alloy structural steel plate, alloy tool steel plate, spring steel plate, bearing steel plate, high-speed tooling steel plate, stainless steel plate, the nine 0 series of steel plate, bullet-proof steel plate, pure iron steel plate, high-pressure steel plate, weathering steel, pressure-resistant steel, low-magnetic steel, the most commonly used is the High-quality carbon structural steel plate and stainless steel plate. In addition, there are composite steel plates such as stainless composite steel plate, plowshare steel plate, copper-steel composite steel plate. High-quality medium-thickness plate for machinery, vehicles and other parts, components, tools and so on. Stainless steel plate is used in aviation, petrochemical, textile, food, medical and so on.
Thin steel plate: steel plate with a thickness of not more than 4.0mm is thin steel plate. Thin steel plate is divided into ordinary thin steel plate, high-quality thin negative plate and coated thin steel plate, according to its rolling process is divided into hot-rolled and cold-rolled.
Hot-rolled ordinary thin steel plate: made of ordinary carbon structural steel or low alloy structural steel hot-rolled, mainly including ordinary steel, shipbuilding steel, low alloy steel, patterned steel, oil drums, liquefied petroleum gas cylinders steel, automotive beam steel, steel, steel mold plate. Ordinary steel plate, the use of a wider range, for the surface requirements are not high, do not need to undergo deep stamping of the parts, such as machine covers, ventilation ducts, open and box, and other raw materials of the plate. Shipbuilding, pattern, automobile beams and other steel plate uses and medium plate the same, oil drum steel plate with Q215-A, Q235-A or 08, 10 high-quality carbon structural steel hot rolled into 1.25, 1.50mm thick sheet. The plate is 660*1310 (1970) (barrel lid), 930*1800 (barrel body) according to requirements.
Hot-rolled high-quality thin steel plate, with a variety of high-quality steel made of hot-rolled. Mainly includes high-quality carbon structural steel plate, carbon tool steel plate, alloy structural steel plate, alloy tool steel plate, spring steel plate, bearing steel plate, stainless steel plate, nine 0 series of thin steel plate, bullet-proof plate, etc., and its use and high-quality hot rolled steel plate similar to the medium-thickness.
Cold rolled ordinary thin steel plate: made of ordinary carbon structural steel or low alloy structural steel cold rolled. Cold rolled plate surface quality is better. Have good stamping performance. Its requirements to ensure that the cold bending and cup test qualified, commonly used in automotive and other industries and raw materials for plating plate.
Cold rolled high-quality thin steel plate: mainly includes a variety of high-quality steel cold-rolled sheet, the most commonly used is carbon structural steel plate, especially deep stamping cold-rolled thin steel plate, cold-rolled sheet from low-carbon high-quality steel 08Al, the steel plate according to the quality of the surface is divided into three groups; Ⅰ, Ⅱ, Ⅲ, respectively, said that the special high-level, high-level, high finishing surface, according to the level of drawing is divided into ZF, HF, F level (on behalf of the most complex and very high level of drawing for the). Punching and stretching the most complex, very complex, complex parts), according to the thickness of the steel plate allowable deviation, and is divided into A, B two levels of precision, widely used in the automobile tractor industry.
Plated sheet: In order to improve the corrosion resistance of the steel plate, steel plating on the surface of the steel plate with other metal or non-metallic cover layer of steel, such as galvanized steel, lead-plated steel, tin-plated steel, plastic composite steel, collectively referred to as plated steel. Galvanized steel plate is a thin steel plate.
Thin galvanized steel: thin galvanized steel, also known as galvanized iron or white iron, it is 0.25-2.50mm cold rolled thin steel after pickling, and then put into the melted zinc coated with a thin layer of zinc made. The surface of the steel plate has obvious like fish scales or leaves of the crystalline pattern, due to the zinc layer, can protect the steel plate from air and water rust, galvanized sheet is used in large quantities in construction, packaging and people's daily life, such as roofing, making gutter, downpipe, ventilation pipes and living utensils. Galvanized thin steel sheet is mainly required to have a good quality of galvanized layer, one side of the thickness of the galvanized layer should not be less than 0.2mm, and requires the plasticity of the steel plate and the strength of the galvanized layer, galvanized thin sheet is divided into two kinds of hot-dip galvanized and electro-galvanized.
Thin lead-plated steel plate: usually made of cold rolled sheet with 08Al after lead plating, lead is actually lead, antimony alloy, because lead in many media, especially containing H2S, SO2 and other petroleum products, has good corrosion resistance. Therefore, lead-plated sheet steel commonly used in the manufacture of automobile fuel tanks and oil storage containers. Thin lead-plated steel plate commonly used thickness of 0.5-1.8mm. requirements to ensure the surface quality, stamping performance.
Tin-plated sheet: tin-plated sheet commonly known as "tinplate", usually with 08F and other cold-rolled low-carbon sheet steel through hot-dip or electroplated tin made of 0.15-0.50mm sheet steel. Due to the tin plating layer of air, especially for a variety of food has a high corrosion resistance, especially tin and food to form tin compounds, are generally non-toxic, non-rich human body, tin plate surface bright, beautiful, and easy to paint and print. Therefore, widely used in the production of food, candy, tea leaves, spices and paints, dyes, pharmaceuticals and other packaging containers. Tinplate thickness calculation method is different from other thin plate, its thickness is expressed by labeling, that is, a certain range of average thickness of the number of millimeters multiplied by 100 to indicate, such as No. 40 on behalf of the thickness, is 0.36-0.44mm range tinplate. Tinplate plate size is generally 508 * 712mm (equivalent to 20 inches * 38 inches), 26, 28, 32 No. 112 per box, 36, 45, 50 No. 56 or 84 per box. The main requirement for tinplate is that the tin plating layer should be uniform and have good stamping and molding performance.
In addition to the above several plated plates, there are aluminum, chrome plating, as well as organic coated steel plate and other developments are also very fast.
Steel strip: steel strip, also known as strip steel, is actually thinner, narrower and very long length of steel plate, usually supplied in rolls. Compared with the steel plate, has the advantages of high dimensional accuracy, good surface quality and ease of use. Widely used in the production of welded steel pipe, cold-formed steel billet, used in the manufacture of bicycle frames, wheel rims, clamps, washers, spring sheet, cable armoring, saw blades, blades, baling iron and so on. Classification of steel strip and thin steel plate is similar, divided into:
Hot-rolled ordinary steel strip: made of ordinary carbon structural steel or low alloy structural steel hot-rolled, mainly used as welded pipe, cold-formed steel billets and cold-rolled strip steel raw materials. Divided into ordinary carbon steel strip, low alloy steel strip, plain carbon longitudinal shear steel strip, low alloy longitudinal shear steel strip. Longitudinal shear steel strip is made of coil plate cut along the longitudinal direction or a certain width.
Cold Rolled Ordinary Steel Strip: made from ordinary steel cold rolled. Including ordinary carbon steel strip, low alloy steel strip, ordinary carbon bright steel strip, ordinary carbon longitudinal shear steel strip, low alloy longitudinal shear steel strip, cart steel strip, packing steel strip, flashlight steel strip, hose steel strip, cable steel strip. Mainly used as a variety of structural components and the production of specialized products.
Hot rolled high quality steel strip: from a variety of high-quality steel by hot rolling made of steel. Among the commonly used watch spring steel strip, watch case steel strip, chrome-aluminum steel strip and so on.
Cold rolled steel strip: cold rolled from a variety of high-quality steel, carbon structural steel strip, tape measure steel strip, mechanical chain steel strip, carbon tool steel strip, alloy structural steel strip, spring steel strip, alloy tool steel strip, ball bearing steel strip, stainless steel strip, high-speed tool steel strip, pure iron steel strip, silicon steel strip, nickel-chromium steel strip, precision alloy steel strip. Use and high quality thin steel plate use similar.
Coated steel strip: galvanized strip, tinned strip, galvanized cable tape, tinned cable tape, painted cable tape.
The size of the steel strip with thickness * width, the steel strip size precision requirements are higher, especially cold-rolled steel strip according to the manufacturing precision, edge state, surface state, delivery status, mechanical properties and surface color, etc., is divided into many categories, the use of the requirements of the relevant provisions of the carefully check.
Electrical silicon steel sheet: also known as silicon steel sheet or silicon steel sheet, which is made of electrical steel containing 0.8-4.8% silicon by hot-rolled or cold-rolled. Among them, cold rolled electrical silicon steel sheet with smooth surface, uniform thickness, high filling factor, than the hot rolled plate with low iron loss, high magnetic induction strength, especially cold rolled oriented electrical silicon steel sheet, with higher magnetic induction strength, smaller iron loss. Therefore, with cold rolled electrical silicon steel sheet manufacturing motor and transformer, weight and volume than hot rolled can be reduced by 10-25%.
Hot rolled electrical silicon steel sheet, motor silicon steel sheet and transformer silicon steel sheet, motor silicon steel sheet thickness of 0.35, 0.50, 1.00mm; transformer silicon steel sheet thickness of 0.10, 0.20, 0.35, 0.50mm. more into the supply.
Cold rolled electrical silicon steel sheet, divided into oriented silicon steel sheet and non-oriented silicon steel sheet and DW material. Cold rolled non-oriented silicon steel sheet for electric motors commonly used thickness of 0.35 and 0.50mm more into the volume supply, their silicon content is generally lower; transformer cold rolled oriented silicon steel sheet commonly used thickness of 0.20, 0.30, 0.35, 0.50mm, their silicon content is generally higher.
In addition to motors, transformers, electrical silicon steel sheet or electric power, telecommunications industry in the electrical instrumentation and other electrical appliances indispensable vital magnetic materials.