1 Hot Rolled Plate / Hot Rolled Sheet / Hot Rolled Steel Coil
Hot rolled coil generally includes medium-thickness wide steel strip, hot rolled thin wide steel strip and hot rolled thin plate. Medium-thickness wide steel strip is one of the most representative varieties, and its production accounted for about two-thirds of the total output of hot rolled coil. Medium-thickness wide steel strip refers to thickness ≥3mm and <20mm, width ≥600mm; hot rolled thin wide steel strip refers to thickness <3mm, width ≥600mm; hot rolled thin plate refers to a single sheet of steel with thickness <3mm.
Main Uses:Hot rolled coil products have high strength, good toughness, easy processing and molding and good weldability and other excellent properties, is widely used in cold rolled substrates, ships, automobiles, bridges, construction, machinery, oil pipelines, pressure vessels and other manufacturing industries.
2 Cold Rolled Sheet / Cold Rolled Coil
Cold rolled sheet and coil is a hot rolled coil as raw material, rolled at room temperature below the recrystallization temperature, including plate and coil. One of the sheet delivery is called steel plate, also known as box or flat plate, the length is very long, the coil delivery is called steel strip also known as coil. Thickness is 0.2-4mm, width is 600-2000mm, length is 1200-6000mm.
Main Uses:Cold rolled steel strip has a wide range of uses, such as automobile manufacturing, electrical products, rolling stock, aviation, precision instrumentation, food canning and so on. Cold plate is made from ordinary carbon structural steel hot rolled steel strip, after further cold rolling made of steel plate thickness less than 4mm. As rolled at room temperature, does not produce iron oxide, cold plate surface quality, high dimensional accuracy, coupled with annealing, its mechanical properties and process properties are better than hot-rolled sheet, in many areas, especially in the field of home appliance manufacturing, it has been gradually used to replace the hot-rolled sheet.
3 the thick plate
Medium plate refers to the thickness of 3-25mm steel plate, the thickness of 25-100mm is called thick plate, the thickness of more than 100mm for the extra thick plate.
Main Uses:Medium-thick plate is mainly used in construction engineering, machinery manufacturing, container manufacturing, shipbuilding, bridge construction and so on. Used to manufacture a variety of containers (especially pressure vessels), boiler shells and bridge structures, as well as automobile beam structure, river and sea transportation ship shells, some mechanical parts, can also be assembled and welded into large components.
Strip steel in a broad sense refers to all the coil as a delivery status, the length of the relatively long flat steel. Narrowly refers to the narrower width of the coil, that is, usually referred to as narrow strip steel and medium and wide strip steel, sometimes especially narrow strip steel. According to the national statistical classification index, the coil below 600mm (excluding 600mm) is narrow strip or narrow strip steel. 600 mm and above is wide strip.
Main Uses:Strip steel is mainly used in the automobile industry, machinery manufacturing industry, construction, steel structure, daily-use hardware and other fields, such as the production of welded steel pipe, as cold-formed steel bad material, manufacturing bicycle frames, rims, clamps, gaskets, spring plates, saws and razor blades and so on.
5 Building materials
(1) Rebar
Rebar is the common name for hot rolled ribbed steel bars, ordinary hot rolled steel bars by HRB and its grade yield point of the minimum value of the grade consists of H, R, B, respectively, for the hot rolled (Hot rolled), with ribbed (Ribbed), rebar (Bars) the three words of the first letter of the English language. There is a higher requirement of seismic structure applicable grade, is in the existing grade followed by the letter E (eg: HRB400E, HRBF400E)
Main Uses: Rebar is widely used in civil engineering construction of houses, bridges and roads. As big as highways, railroads, bridges, culverts, tunnels, flood control, dams and other utilities, as small as the foundation of housing construction, beams, columns, walls, plates, rebar is an indispensable structural material.
(2) high-speed wire rod, referred to as "high line", is a kind of wire rod, usually refers to the "high-speed torsion-free mill" rolled out of small-size coils, commonly found in ordinary mild steel torsion-controlled hot and cold rolled coils (ZBH4403-88) and high-quality carbon steel torsion-controlled hot and cold rolled coils (ZBH4403-88) and high-quality carbon steel torsion control Hot Rolled Coil (ZBH44002-88) and so on.
Main Applications:High wire is widely used in automobile, machinery, construction, home appliances, hardware tools, chemical industry, transportation, shipbuilding, metal products, nail products and other industries. Specifically, it is used in the manufacture of bolts, nuts, screws and other fasteners, pre-stressing steel wire, stranded steel wire, spring steel wire, galvanized steel wire and so on.
(3) Round steel
also known as "bar", is a long solid bar with a round cross-section. Its specifications to the diameter of the number of millimeters, for example: "50" that is, the diameter of 50 millimeters of round steel. Round steel is divided into hot-rolled, forged and cold-drawn three kinds. The specification of hot rolled round steel is 5.5-250 mm.
Main uses:5.5-25 millimeters of small round steel is mostly supplied in bundles of straight bars, commonly used for rebar, bolts and a variety of mechanical parts; greater than 25 millimeters of round steel, mainly used in the manufacture of mechanical parts or for seamless steel pipe billet.
6 Steel Profile
(1) Flat Steel Bars is a 12-300 mm wide, 4-60 mm thick, rectangular cross-section and slightly with a pure edge of the steel, is a kind of profile.
Main uses:Flat steel can be made into finished steel, used in the production of hoop iron, tools and machinery parts, used in construction as a frame structural parts. It can also be used as the bad material of welded pipe and the bad of thin plate for stacked rolled sheet. Spring flat steel can also be used to assemble automobile stacked leaf springs.
(2) the square section of steel, hot rolled and cold rolled (cold drawn) two categories, common products to cold drawn majority. Hot rolled square steel side length is generally 5-250 mm. cold drawn square steel to use high-quality carbide mold processing, the size of some smaller but smooth surface, higher precision, side length in 3-100 mm.
Main Uses:Rolled or machined into square cross-section steel. Mostly used in machinery manufacturing, making tools and molds, or processing spare parts. Especially cold drawn steel surface condition is good, can be used directly, such as spraying, sanding, bending, drilling, but also directly plating, eliminating a lot of machining time and save the cost of configuring the processing machinery!
(3) channel steel is the cross-section for the groove-shaped long steel, hot-rolled ordinary channel steel and cold-formed lightweight channel steel. Hot-rolled ordinary channel steel specifications for 5-40 #, by supply and demand side agreement to supply hot-rolled variable channel steel specifications for 6.5-30 #; cold-formed channel steel according to the shape of the steel can be divided into four kinds: cold-formed equal-edge channel, cold-formed unequal channel, cold-formed inside the edge of the channel, cold-formed outside the edge of the channel.
Main use:steel Channel can be used alone, channel steel is often used in conjunction with I-beam. It is mainly used to make building steel structure, vehicle manufacturing and other industrial structures.
(4) Angle steel, commonly known as angle iron, is a long strip of steel with two sides perpendicular to each other in the shape of an angle. Angle belongs to the construction of carbon structural steel, is a simple cross-section of the section steel, in the use of the requirements of good weldability, plastic deformation properties and a certain degree of mechanical strength. The raw material steel for the production of angle steel is low carbon square steel, and the finished angle steel is hot rolled and shaped.
Main uses:Angle steel can be formed according to different needs of a variety of different stressed metal components, can also be used as a connection between the components. Angle steel is widely used in a variety of building structures and engineering structures, such as beams, plant frames, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks and warehouse shelves.
7 pipe
(1) steel pipe
Welded steel pipe referred to as welded pipe, is made of steel plate or steel strip after bending and molding, and then welded. According to the form of welded seam is divided into two kinds of straight seam welded pipe and spiral welded pipe. Generally speaking, the welded pipe, are referred to these two types of hollow circular section of the steel pipe, other non-circular steel pipe is known as a shaped pipe.
Steel pipe to water pressure, bending, flattening and other experiments, there are certain requirements on the surface quality, the usual delivery length of 4.10m, often require fixed-foot (or double-foot) delivery. Welded pipe according to the specified wall thickness of ordinary steel pipe and thickened steel pipe two kinds of steel pipe according to the form of the pipe end is divided into two kinds of with threaded buckle and without threaded buckle, continuous laying more with threaded buckle.
Main Uses:According to the use of often divided into general fluid transport welded pipe (water pipe), galvanized welded pipe, oxygen blowing welded pipe, wire casing, roller pipe, deep well pump pipe, automotive pipe (drive shaft pipe), transformer pipe, electric welding thin-walled pipe, electric welding shaped pipe, and so on.
(2) spiral pipe
Spiral welded pipe strength is generally higher than the straight seam welded pipe, can use a narrower billet to produce a larger diameter of the welded pipe, but also with the same width of the billet to produce a different diameter of the welded pipe. However, compared with the same length of straight seam welded pipe, the weld length increases by 30-100%, and the production speed is relatively low. Therefore, the smaller diameter welded pipes are mostly welded by straight seam welding, while the large diameter welded pipes are mostly welded by spiral welding.
Main Uses: SY5036-83 is mainly used to transport oil, natural gas pipelines, SY5038-83 with high-frequency lap welding method welded spiral seam high-frequency welded steel pipe for the transportation of pressurized fluids, the steel pipe pressure-bearing capacity, good plasticity, easy to weld and processing and molding.SY5037-83 using double-sided automatic submerged arc welding, or one-sided welding method for the transportation of water, gas, air and steam, and other low-pressure fluids in general. Fluid.
(3) Rectangular pipe is a steel pipe with equal sides (side lengths are not equal is a square rectangular pipe), is a strip of steel after unpacking, process treatment and then flattened, curled, welded to form a round tube, and then rolled from a round tube into a square tube.
Main uses:Most of the square tube is a steel tube, more for structural square tube, decorative square tube, construction square tube, etc.
8 coated
(1) galvanized sheet and galvanized coil
Is a steel plate with a layer of zinc on the surface, steel galvanized is a commonly used, cost-effective anti-corrosion method. Galvanized sheet in the early years was used to be called "white iron". The delivery status is divided into two types: rolled and flat.
Main Uses:Hot-dip galvanized sheet is divided into hot-dip galvanized sheet and electro-galvanized sheet according to the production process. Hot-dip galvanized sheet has a thicker zinc layer and is used to make parts that are highly resistant to corrosion for open-air use. The thickness of zinc layer of electric galvanized sheet is thin and uniform, and it is mostly used for painting or making indoor products.
Color coated coil is hot galvanized sheet, hot aluminized zinc plate, electric galvanized sheet for the substrate, after surface pretreatment (chemical degreasing and chemical conversion treatment), the surface of one or more layers of organic paint, followed by baking and curing of the product. Also coated with a variety of different colors of organic paint colored steel coil, thus the name, referred to as color coated coil.
Main Applications:In the construction industry, roofs, roof structures, roll-up doors, kiosks, shutters, guard doors, street shelters, ventilation ducts, etc.; furniture industry, refrigerators, air-conditioning units, electronic stoves, washing machine housings, petroleum stoves, etc., the transportation industry, automobile ceilings, backboards, hoardings, car shells, tractors, ships, bunker boards and so on. Among these uses, the more used are steel factory, composite panel factory, color steel tile factory.
Post time: Dec-12-2023
