Hot- rolled wire rod

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Product Description:

Wire is 5-22 mm diameter hot rolled round steel, or rather the cross section of special-shaped steel. Due to the delivery of the goods in the form of wire rod, so it is also known as wire rod. Wire cross-section circumference is small, common specifications for 5-13 mm diameter. According to the different can be divided into the high speed wire rod mill (line) and ordinary wire line (at) two kinds.

classification

Generally made from ordinary carbon steel and high quality carbon steel wire rod. According to the directory and USES different steel distribution, mild steel wire including ordinary hot rolled plate, the high quality carbon steel wire rod, carbon electrode wire rod, conditioning threaded rod, wire rope with wire rod, piano wire with wire rod and stainless steel wire rod, etc.

1. Ordinary low carbon steel hot rolled plate (GB701-65), normal low carbon steel hot rolled plate by low carbon ordinary carbon structural steel or the carbon structural steel rolling of low yield point, is dosage the biggest, the most widely used in varieties of wire rod, also known as the cord.

Main use: general line is mainly used in construction of reinforced concrete structure for reinforcement, can also be made steel wire, cold drawn to pull for strapping, etc.

2. Ordinary no twist accused of cold, hot rolled low carbon steel wire rod (ZBH4403-88), no twist accused of cold, hot-rolled wire rod by no twist to control cooling after rolling in high speed wire-rod mill, material is the same as the general line, but no twist accused of cold, hot-rolled wire rod with high dimensional accuracy, good surface quality and higher mechanical properties, etc.

Main application: no twist accuracy of cold, hot-rolled wire rod size control points A, B, C level 3. A, B, C level precision is applicable to drawing, construction, packaging and electrode and other purposes, B, C level accuracy is suitable for processing into bolts, screws and nuts, etc.

3. Quality carbon steel wire rod (GB4354-84), high quality carbon steel wire rod is made of high quality carbon structural steel rolling. Is one dosage larger varieties of wire rod variety.

Main application: high quality carbon steel wire rod is mainly used for processing and manufacturing carbon spring steel wire, oil quenching tempering carbon spring steel wire, prestressed steel wire, high strength and high quality carbon structural steel wire, galvanized steel wire, galvanized wire rope, etc.

4. Quality carbon steel no twist accused of cold, hot-rolled wire rod (ZBH44002-88), no twist accused of cold, hot-rolled wire rod quality carbon steel by the high-speed wire mill rolling with no twist, disposed of by controlled cooling after rolling. Compared with the high quality carbon steel wire rod, high dimensional accuracy, good surface quality, have higher mechanical properties.

Main USES: the main purpose is the same as the high quality carbon steel wire rod. Often used in the manufacture of carbon spring steel wire, oil quenching tempering carbon spring steel wire, prestressed steel wire, high quality carbon structural steel wire, galvanized steel wire, etc.

5. Wire rope with wire rod (YB349-64), wire rope with wire rod is one of the high quality carbon structural steel hot rolled plate.

Main application: wire rope with wire rod available 35 and 40, 45, 55, 60, 65, 70, 75, 80 and 85 steel grade high quality carbon structural steel manufacture. Chemical composition meet GB699 (high quality carbon structural steel technical conditions).

6. Wire rope with no twist accused of cold, hot-rolled wire rod (ZBH44004-88), wire rope with no twist charged with hot and cold rolled plate and with high quality carbon structural steel, in the absence of torsion wire mill rolling, controlled cooling after rolling. This rolling of wire rod, high dimensional accuracy, good surface quality, superior mechanical properties.

Main application: mainly used for drawing steel and steel strand steel wire rope.

7. Carbon electrode steel wire rod (GB3429-82), carbon electrode made by high quality carbon structural steel hot rolled low carbon steel rod.

Main application: mainly used in the manufacture of manual arc welding welding core.

8. No twist accused of cold, hot rolled carbon electrode steel wire rod (ZBH44005-88), no twist accused of cold, hot rolled carbon electrode steel wire rod is rolling on blockade twist wire mill, and made controlled cooling after rolling. Its high dimensional accuracy, good surface quality, superior performance, is a kind of high quality welding rod steel wire rod.

Main application: mainly used in the manufacture of a coated electrode steel reinforced carbon steel hot rolled plate.

9. Alloy structural steel hot-rolled wire rod (GB3077-82), alloy structural steel hot-rolled wire rod by alloy structural steel rolling material. Alloy structural steel with a total of 26 steel group, the 78 steel grades. Each manufacturer according to buyer's requirements and different USES to choose brand for production.

Main use: alloy hot rolled wire rod structure is mainly used for drawing wire, metal products and components.

10. Carbon tool steel hot-rolled wire rod (GB1298-86), carbon tool steel by high quality or high quality high carbon steel rolling. Processing performance and wear-resisting performance is good, the price is cheap.

Main USES: mainly used in drawn steel ratio and making tools, etc.

11. Alloy tool steel hot-rolled wire rod (GB1299-77)

Alloy tool steels is in chrome is joined on the matrix carbon tool steel, tungsten, molybdenum, vanadium, silicon, manganese, nickel and cobalt alloy elements and tempered steel. Compared with the carbon tool steel. It has good hardenability, small heat cracking tendency, the characteristics of high wear resistance and heat resistance. Alloy tool steel hot-rolled wire rod by 33 five steel group steel grade of alloy tool steel material and rolled. Respectively by the dalian steel, benxi steel mills and steel mills and other unit production in shaanxi province.

Main use: is suitable for measuring tool, cutting tool and cold and hot die, shock resistant, etc.

12. Spring steel hot-rolled wire rod (GB1222-84)

Spring steel is used in the manufacture of springs or other steel grade of elastic element. Springs and elastic element mainly USES the elastic degeneration absorb and store energy, alleviate vibration, shock, or make parts to complete some action for the purpose. Since it is in shock, vibration or even under the working conditions of periodic alternating stress for a long time, so the spring steel with high yield strength, especially must have higher showed (the ratio of yield strength to tensile strength) and fatigue strength of high elastic, high resistance to high temperature and corrosion resistant performance. The surface of spring steel shall also have the good quality.

Spring steel with carbon spring steel and alloy spring steel, a total of 17 brands.

Main use: spring steel hot-rolled wire rod is mainly used in the production of various USES of helical spring.

13. Ball bearing steel hot-rolled wire rod (YB9-68), referred to as "bearing steel, ball bearing steel is used in the manufacture of various types of rolling bearing ring (sleeve) and steel rolling body (the ball). Due to the particularity of its USES for bearing steel has high and even hardness and wear resistance, high elasticity and fatigue strength. Enough toughness and hardenability, at the same time in the atmospheric environment or lubricant has certain corrosion resistant ability. Some special use of the rolling bearing also require high temperature resistance, corrosion resistance, nonmagnetic, ultra-low temperature, high precision, long life and other performance. So the choice of bearing steel and steel than ordinary steel strict quality.

Bearing steel is usually refers to the high carbon chromium steel, there are also carburizing bearing steel, high carbon chromium stainless bearing steel. Commonly used in rolling bearing steel hot-rolled wire rod steel grade five.

Main use: ball bearing steel hot-rolled wire rod is mainly used in the manufacture of bearing steel ball (ball), etc.

14. Stainless steel wire rod (GB4356-84), stainless steel wire rod was organized by a variety of brand different size of stainless steel hot rolling.

Main use: stainless steel wire rod is mainly used in the manufacture of stainless steel wire, stainless spring steel wire, stainless wire upsetting and stainless steel wire. According to the main industrial USES for to distinguish, stainless steel wire rod are stainless steel and stainless acid-resistant steel wire rod.

15. Welding of stainless steel wire rod (GB4241-84), welding of stainless steel wire rod and stainless steel wire rod is different in chemical composition. In order to guarantee its excellent welding performance, improve the quality of weld, welding of stainless steel wire rod in composition marked characteristics are low carbon, phosphorus, sulfur, less toxic impurities, such as nickel, chromium content is higher.

Main application: mainly used in the manufacture of welding electrode wire and steel core.

The production process

The editor


Commonly used wire line production.

A, through the step by step the billet heating furnace heated to above 1100 degrees Celsius;

Two, heating the billet, after high pressure water descaling;

Three, into the roughing mill rolling, roughing mill for the strip plant;

Four, after roughing rolled piece into the water for cooling, in order to control its internal microstructure;

Five, leave water cooling period after entering the mill and finishing mill for further rolling;

Sixth, after finishing the shape of rolled piece formed by spinning machine spit out volume;

Seven, volume of wire forward cooled in the air cooling section;

Eight, at the end of the air cooling section, wire rod by coil unit into drum shape;

After nine, with drum shape of baling wire into the baling machine;

Ten, into the shipping department.


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Q:If the surface shrinkage of wire rod is poor, what will happen to wire drawing?
In the process of using No. steel, it is mainly broken line, which is caused by surface quality, internal structure, mould, lubrication and so on. Specific reasons for specific analysis.
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.
Q:Can decarburization occur in low carbon and low alloy wire rods? Why?
According to the truth, because of containing carbon steel, oxidation must occur in the heating process, and alloy steel, some alloy increases the decarburization tendency of carbon steel, low carbon steel so will produce decarburization, especially in high temperature and long time stay in the process.
Q:What are the differences between wire rod, round bar and thread steel? Respective specifications?
Wire rods are round, like wire balls. They should be adjusted when they are used. There are usually 6.5 and 8 millimeters in diameter
Q:Is there any difference between the steel bar and the wire rod?
Tianxiangcheng straight rod and is certainly not the same ah. First of all, wire rod (also known as grade a steel) material is HPB300, each specification price: 6.5mm:3200 yuan, 8-10mm:3190 yuan, 12mm:3230 yuan
Q:Use of high carbon steel wire rods
Main applications: mainly used in the processing of carbon spring steel wire, oil quenching and tempering carbon spring steel wire, prestressed steel wire, high-strength quality carbon structural steel wire, galvanized steel wire, galvanized stranded wire, steel wire rope and so on.
Q:What is a cold drawn steel wire? What does it usually do?
Cold drawn low carbon steel wire used for prestressed concrete structures, such as beam, hollow floor, small poles, and rural construction of the purlin and door and window frames etc..
Q:What is the difference between a wire rod and a straight bar?
Wire rod refers to the delivery of goods in the form of plate delivery, usually with a finer steel, diameter less than 12. When used to straighten, has the advantages of convenient transportation, storage, basically no waste material
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:What is the diameter of steel wire and the diameter of wire rod, and what's their difference?
Steel wire is pulled by wire rod, the diameter of wire rod is the diameter of billet line, that is, the diameter before drawing. The diameter of steel wire is the diameter of wire rod drawn into steel wire

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