Hot- rolled steel coil for construction GB Q235

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Tianjin
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
100000 m.t./month

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Product Description:

One, introduction

Hot rolled coil is used for continuous casting slab or slab as raw material, after reheating furnace heating, scales entered the roughing mill in the high pressure water, roughing cut is expected by the head, tail, and then enter the finishing mill, the implementation of the computer controlled rolling, finally after rolling through the laminar cooling (computer controlled cooling rate) and coiling machine coiling, become straight hair volume. Hair straightener roll head, tail often forms a tongue shape and fishtail, thickness, width of poor accuracy, edge has wavy, folding, tower and other defects. The volume weight heavier, steel coil diameter is 760mm. (general pipe industry like use. )

2 two, characteristics

Because there is no after annealing treatment, the hardness is very high (HRB greater than 90), mechanical processing performance is poor, only a simplebending process has less than 90 degree directional (direction perpendicular to the rolled).

Three, use 3

Hot rolled products with high strength and good toughness, easy processing and good forming can be excellent performance of welding, which is widely used in ships, cars, bridges, buildings, machinery, boiler, pressure vesselmanufacturing industry.

The scope of application:

(1) after annealing processing into the common cold;

(2) processing galvanized galvanized unit before the annealing treatment;

(3) the basic do not need to process the panel.

4 four, classification

Carbon steel plate, carbon plate, low alloy plate, ship plate, bridge plate, boiler plate, container plate etc.. Rolling hard volumes: under normal temperature,the hot pickling volumes of continuous rolling.

Hot rolled steel strip products include steel (roll) and the shear of steel plate.And steel (coils) can be divided into straight and finishes volume (the volume,smooth rolling and slitting roll).

Hot- rolled steel coil for construction GB Q235

Hot- rolled steel coil for construction GB Q235

Hot- rolled steel coil for construction GB Q235

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Q:What is a steel wire rod?
The delivery of long wood is divided into two pieces: fixed gauge and coilYou refer to the wire rod, refers to the coil delivery of steel, under normal circumstances, according to commonly used, refers to the coil delivery of round steel, also known as smooth steel,
Q:Can decarburization occur in low carbon and low alloy wire rods? Why?
Therefore, low carbon alloy steel may also be decarburization, the normal production process and good surface quality, there will be no high carbon steel such as all decarburization layer, but local is also possible!
Q:Types of wire rods
There are many kinds of wire rods. Carbon steel wire rod in the low carbon steel wire rod, commonly known as cord, medium and high carbon steel wire rod commonly known as hard wire. Wire rods are mainly used for drawing billets, and can be used directly as building materials and machined into mechanical parts. Stainless steel wire rod is used for making stainless steel wire, stainless steel spring steel wire, stainless steel wire and stainless steel wire rope. With the development of production technology, square has appeared,
Q:What are the common diameters of steel bars?
Rebar common diameter 6, 6.5, 8, 12, 14, 16, 18, 20, 22,, 25, 28, and 32.Reinforced concrete (Rebar) is used for reinforced concrete and prestressed reinforced concrete steel, its cross section is round, sometimes with rounded square. Including round steel bar, ribbed steel bar and twisted steel bar.
Q:What are the differences between wire rod, round bar and thread steel? Respective specifications?
Round wire, including wire rods, refers to a smooth surface, mainly galvanized round steel, generally 10--12 in diameter, but also of larger diameter but rare. Threaded steel refers to the surface of the thread. Commonly used with diameter 10--25. Generally 2 grade steel
Q:8 wire rods, one meter, how many kilograms?
Wire rods, also known as wire rods, steel, wire, rod (s), usually refer to small diameter round steel discs. The diameter of the wire rod is in the range of 5-19 millimeters (usually 6-9 mm), and its lower limit is the minimum size of the hot-rolled steel section.
Q:Is there any difference between wire rod and round steel in steel?
Round steel is a solid strip of steel whose cross section is round. Its specifications are expressed in diameter, in units of millimeters (mm), such as "50mm", which means a diameter of 50 millimeters of round steel. Round bar is divided into three parts: hot rolling, forging and cold drawing. Standard Specification for hot rolled round steel is 5.5-250 mm. Where: 5.5-25 mm small round steel mostly straight bundles of supply, used for steel, bolts and various mechanical parts; greater than 25 mm round steel, seamless steel pipe is mainly used for the manufacture of mechanical parts of the tube, etc..
Q:Use of high carbon steel wire rods
High carbon steel wire rod is made of high quality carbon structural steel. It is one of the larger varieties of wire rod.
Q:Is there any difference between the steel bar and the wire rod?
The four grade steel material is HRB500, each specification price is: 12-14mm:3450, 16mm:3430, 18-25mm:3380, 28-32mm:3430, 8-10mm (plate thread steel): 3440 yuan.
Q:Cold drawing with lurkin whether it is the same product, how to use the difference
Cold drawing materials used more, testing standards of cold drawing are also different. Cold drawing of high strength, can be used in many aspects, for much is prestressed reinforcement. Do not ask for plasticity, only the strength of the occasion, you can use such steel.

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