High grade hot- rolled strip

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Hot rolled strip, the English name of Hot - rolled strip, also known as Hot rolled steel belt, commonly known as is a Hot plate. Hot rolled strip width less than or equal to 600 mm, the thickness of 0.35-200 - mm steel plate and the thickness of 1.2-25 mm steel belt.

The relevant classification

The editor


Hot rolled steel plate is divided into structural steel, mild steel, welding steel, then according to the steel of various steel products to find what you need to check the specific density and composition of the steel. Hot rolled steel plate hardness is low, easy processing, good extensibility. Hot rolled strip steel products including steel belt (volume) and has its shear of steel plate. Steel belt (volume) can be divided into straight hair volume and finishing (volume classification, formation and slitting roll).

Hot rolled steel plate strength is relatively low, the surface quality almost (oxidation, low roughness), but the plasticity is good, generally for the medium plate, manufacture, high strength, high hardness, high surface finish, generally for sheet, can be used as a drawing board.

2 the difference between

The editor


Cold rolled steel sheet due to a certain degree of strain hardening, toughness is low, but can reach better showed, used for cold bending spring pieces and parts, at the same time due to the yield point is close to the tensile strength, so no foresight to danger, in use process in the load exceeds allowable load are prone to accidents.

1) cold plate using cold processing surface without scale, good quality. Hot rolled steel plate, surface of oxide skin are processed using the hot rolled plate thickness with the poor.

2) hot rolled steel toughness and surface smoothness is poor, the price is low, and the extension of manufacture and resilient, but the price is more expensive.

3) rolling is divided into cold rolled and hot rolled steel plate, distinguish between point for recrystallization temperature.

4) cold rolling: generally used in the production of strip cold rolling, the rolling speed is higher. The temperature of the hot rolled steel plate, the temperature of the hot rolled and forged close.

5) don't plating surface of hot rolled steel plate into dark brown, not plated cold plate surface is gray, from the smooth degree of surface after plating will distinguish, lengzha board smoothness is higher than that of hot rolled steel plate.

Data reference

标准及牌号
国家标准

相当国外标准

作用与用途
材料类别
执行标准
牌号
标准号
牌号
适应于制造冷成型加工的零件
低碳钢卷板
Q/BQB302
SPHC
JISG3131
SPHC
SPHD
SPHD
SPHE
SPHE
SAE1006/SAE1008

SAE1006/SAE1008
XG180IF/200IF
XG180IF/200IF
一般结构用钢
GB/T912-1989
Q195
JISG3101
SS330
用于建筑、桥梁、船舶、车辆等一般构建
Q235B
SS400
SS400
SS490
ASTMA36
SS540





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Q:What are the characteristics of cold rolled strip technology?
Cold rolled blank because the surface covered with oxide film and a small amount of impurities, will directly affect the precision of rolling and the quality of the product, so the blank material must first sent to the shallow groove company push-pull continuous pickling, pickling of oxide film and annealing to remove impurities, can be sent to the high precision six roller reversible rolling mill made the required thickness. After rolling through forced circulation cover type bright annealing furnace and high precision leveling unit two Kun to soften and smooth surface, and then finished packing or according to customer demand straight points, finally packaging factory.
Q:What are the categories of strip steel? How do you distinguish it?
Classification by usageAccording to the use of steel, can be divided into structural steel, tool steel, special performance steel three major categories.Structural steel: 1. used as steel for various machine parts. It includes carburizing steel, Quenched and tempered steel, spring steel and rolling bearing steel.2. steel used as an engineering structure. It consists of carbon steel in armour, B, especially steel and ordinary low alloy steel.Tool steel: steel used to make all kinds of tools. According to the use of different tools can be divided into tool steel, die steel and tool steel.Special performance steel: steel with special physical and chemical properties. Can be divided into stainless steel, heat-resistant steel, wear-resistant steel, magnetic steel and so on.
Q:What does galvanized steel strip A6 mean?
The difference between the two is that one zinc plating, one without plating, the other with zinc, is more resistant to oxidation and corrosion
Q:Is there any difference between galvanized steel strip and galvanized sheet?
Broad sense means galvanized steel sheet.
Q:Where is the lining board made of polyurethane lining? Please contact immediately
I don't know where to use it,Wear resistant lining board is based on the use of the environment and requirements for the product design, the earliest silo chute used in wear-resisting lining board is made of PE material fabrication and installation, but in use, PE liner wear, service life, leading to the use of units often change, very inconvenient, but also affect the normal purchase and shipment. PE material hardness is very high, food and other food raw materials in the process of loading and unloading, and PU lining plate contact parts, food will be a large number of broken, seriously affecting the quality of grain. Therefore, polyurethane wear-resistant lining board arises at the historic moment. Polyurethane wear-resistant lining board, as an elastomer product, has very high abrasion resistance and resilient cushioning performance.
Q:What gas does the shear of the strip weld require for the welder?
(1) inlet strip clamping mechanism.(2) shearing machine.(3) welding device.(4) export strip clamp mechanism.The inlet and outlet strip clamp mechanism is used to make the end of the strip to the middle and clamp to the welding position, including strip clamping, centering and positioning device.
Q:Is the strip steel strip?
Some thicker medium plate production is not produced by strip steel. In any case, the strip is a general term for strip and plate.
Q:65 what is the hardness of the best heat treatment of manganese steel strip?
65, the best heat treatment hardness of manganese steel strip depends on the application and heat treatment methods, such as the general in 45~50HRC, general heat treatment at 48 degrees, the best comprehensive mechanical properties.
Q:What is the difference between cold plate and strip steel?
Strip steel is a kind of narrow and long steel plate produced by various rolling mills to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. Strip steel, also known as steel strip, is within 1300mm in width, and the length varies slightly according to the size of each roll.
Q:Can cold rolled strip be plated with white zinc?
Rust removal will affect the quality of the plating. The rusted part must be polished with sandpaper to allow it to be the same as the surface roughness without rust around it.

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