5/17/2012

Different Kinds of Steel Products and Steel Prices


It is known that steel is widely used in many different areas, and it contains all kinds of different types. Generally, depending on the cross sectional shape, the steel can be divided into four main categories of profiles, steel sheets, steel tubes, and metal products. Of course, every big category can own several different small categories, and the related steel prices is not the same. Most the processing of steel belongs to pressure processing, which can make steel produce plastic deformation. According to the processing temperature of steel can be divided into two kinds of cold and hot processing.

Steel is an iron-carbon alloy which contains carbon between 0.04%-2.3%. The chemical composition of steel is so different, if the steel can only contain carbon steel known as carbon steel, in the actual production, in order to ensure its toughness and ductility, the carbon content is generally not more than 1.7%. And the main elements of steel except iron and carbon, it contains silicon, manganese, sulfur, phosphorus, etc.

The next, there are some introductions about several normal steel products, including steel plate, steel coil, galvanized steelsteel pipe, etc.

Steel Plate
Steel plate is with molten steel pouring and pressed flat-shaped steel after cooling. According to different rolling ways, steel plate can be divided into hot-rolled and cold-rolled. Generally, steel plate can used as bridge plate, boiler plate, automobile manufacturing plate, etc. And hot rolled steel plate is a very big application in the industry, which is produced by hot rolling.

Steel Coil
Steel coil, is also known as rolled steel, which is can be produced by steel hot or cold pressing. In order to facilitate storage and transport, steel coil usually can be processed plate or strip, etc. Steel coil is divided into hot rolled coil and cold rolled coil, and the hot rolled coil is processing products which is in the front of the billet recrystallization, and cold rolled is subsequent processing after hot-rolled-coil. In order to enhance the resistance to corrosion of steel, you can use galvanized steel coil.

Steel Pipe
Steel pipe can be divided into two categories, including seamless pipe and welded steel pipe. Usually, seamless pipes are made of high quality carbon steel and use two different ways to produce: hot rolled and cold rolled. Welded steel pipe is rolled into a tubular steel plate on the seam or spiral seam welded. Weld steel pipes can be used for water pipelines, gas pipes, heating pipes, electrical pipes, etc.

Now the trade of steel in the world is wide, generally, I know China steel is a little cheaper comparing to other countries, therefore, more and more countries are cooperating with China steel suppliers. According to our trading experience, SteelFromChina.com is a so website, which can provide whole related information about steel products, like steel sections, steel pipe, steel tube, steel coil, galvanized steel, galvalume steel, erw pipe, etc, and you can find the latest steel prices in the site to help you compare the prices of different suppliers.

3/23/2012

Getting Most Comprehensive Steel Information

The steel industry has hundreds of years history all over the world, following the quick development of high-tech, steel have divided into all kinds of styles to satisfy different demands for almost industry. Whatever China Steel or other countries steel suppliers, having formed a relatively mature industry chain. The below we will provide you some popular steel information to help you learn the latest steel products.

Firstly, I recommend you to know angle iron better. Commonly, angle iron is known as on both sides perpendicular to each other into a corner of the bar of steel. And it is divided into equal angles and unequal angles. According to the different structure needs, angle iron can compose of a variety of different force components, and also can be used for connections between the components. Certainly, angle iron is widely used in different building structures and engineering structures such as beams, bridges, transmission towers, hoisting and conveying machinery, ships, industrial furnace, reaction tower, container frame and warehouse shelves, etc. In addition, angle iron belongs to a simple section of carbon structural steel, which is mainly used for metal components and framework of the plant.

Secondly, there is a kind of vastly using steel----steel channel, which is a cross-section of the groove-shaped strip of steel. According to different categories, steel channel is divided into different styles, for example, via the different shape, it can be divided into four kinds: Cold equilateral channel, ranging from cold-formed side channel cold-formed Lipped Channels, cold-formed outer edge channel. And the applying of steel channel is widely, generally, it mainly used for building structure, vehicle manufacturers and other industrial structure, specially, steel channel can be used in conjunction with h beam.

Thirdly, Prepainted Steel is a special steel, which is made from cold rolled steel and galvanized steel with surface chemical treatment after coating or composite organic film, then bake curing. Therefore, prepainted steel not only owns the performance of steel material high mechanical strength and easy to shape, it also has good decorative coating materials and corrosion resistance. And it respected as today’s world new materials and get more and more wide using. Usually, prepainted steel is used in building, appliances, electrical and mechanical transport, indoor decoration, office furniture and other industries.

Finally, ERW Pipe just is Electric Resistance Welding, which is different from ordinary pipe welding process, and erw pipe is is made ​​by the parent material of the strip body melting, mechanical strength than the average pipe. Usually, ERW said resistance welding, resistance welding has high production efficiency, low cost, material saving, easy automation features, it is widely used in various industrial sectors of the aviation, aerospace, energy, electronics, automotive, light is important welding processa. And ERW Pipe is also used to transport oil, natural gas, to meet the high and low voltage requirements of the conveying pipe in the world sector accounts for a pivotal position.

Via the above some related steel product instruction, we can know that steel industry plays so important role in whole industry development. Although, now steel prices have great difference from before, the quality of steel is getting better, and all sorts of special steel products can satisfy more range demands.

3/07/2012

Packing of Galvanized Steel coil

One of my old customer said that a galvanized steel coil mill made a very simple package of the goods, and when arrived, customer opened the package and found that the surface of coils are all wet, or even water droplets. This will affect the normal use of galvanized roll. It’s really terrible. Below are some notes, according to my experience, I would like to share with everyone refer to the package of the galvanized rolls. 

Galvanized steel coil packaging are divided into horizontal packaging and vertical packaging. The main difference lies in the vertical packaging with a wooden tray or iron under it, in order to make the reinforcement of galvanized coils in containers more solid. Of course, horizontal packing is also safety, because when loaded into containers, it will be reinforced by different ways. No matter horizontal or vertical, the packing of roll is same.

One: Waterproof paper. Waterproof paper is wrapped in the surface of a galvanized roll. Its main function is to prevent galvanized volume moisture, and avoid water vapor into the volume, then influence of hot dip galvanized coil surface. Such as zinc oxide layer when water vapor, can appear on the zinc spend turned white, affect beauty and using. This layer is necessary for the waterproof.

Two: Galvanized steel  layer. It’s out of waterproof paper. During the transportation progress, it’s very easy to hit. This layer is to prevent the scratch on the surface.

Three: Edge Protection layer.  It is on the both sides of the roll, and made of iron. It’s mainly to protect the edge of galvanized roll. It’s very important, if the edge of galvanized steel coil wasn’t protected, might affect the deep processing, and even damage the machine.

Four: Straps. It is used to fix the waterproof paper and galvanized iron packaging, avoid the iron fall off. For galvanized roll with the width of 1000mm to 1500mm, it should be 8 straps and transverse 4 pieces, vertical 4 pieces. It’s the best way to tighten the rolls. S

Five: Tags/Marks. Mill tags will be stick on every coils outside the packages. Including: name of commodity, grade, gross weight, net weight, roll number, and information of the mill, supplier information, etc. It’s will be helpful for clients to find the right rolls against the packing list.


Above all is the detailed info for the packing, and hopefully it will be helpful for you to choose suppliers for galvanized steel coils. Indeed, whatever you choose the galvanized steel coil or galvanized steel sheet, these experiences above can be noticed, as long as you do the packaging services better, customers can satisfy with our steel products and steel prices better.

2/16/2012

Knowing Detail Features of Different Steel Products

Following the development of industrial revolution and advanced technology, the steel area is being rapid advances, all kind of new technologies are used in steel products to improve the features of steel. Today's construction industry has been rapid progress, the demand of steel suppliers, a higher demand of quality and quantity of steel products. Generally speaking, there are some differences in steel prices and features for different products, the below will give some detail instruction to the often using steel series.

According to the shape of steel, the steel products can be divided into many types, such as steel pipes, steel coil, steel sheet, etc. via the related marketing survey, we have found that Seamless Pipes are widely used different areas. It is known that Seamless Pipe is a hollow sections, peripheral joints round, square, rectangular steel. Seamless steel pipes with hollow cross-section, a large number of solid steel pipes, steel round bar used for conveying fluids compared to the same torsional strength in bending, lighter, is an economic cross-section steel, widely used in the manufacture of the structure parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle frames, and the construction using steel scaffolding.

There is another steel tube, which is called rectangular tube. The rectangular tube is a hollow square cross-section of light thin-walled steel pipe, also known as steel cold-formed profiles. It is made ​​by the Q235 hot rolled or cold rolled strip or coil for parent metal forming by cold bending after the high-frequency welding steel of square cross-section shape and size. Hot-rolled special thick-walled square tubes in addition to wall thickness of thickening, the size of the corner and edge straightness to achieve even more than the resistance welding of cold formed square tube level. And it is widely used in the manufacture of mechanical parts and engineering structures. Also commonly used for the production of conventional weapons, the barrel shells.

Because the difference of rolling temperature, rolling steel can be divided into hot rolled steel and cold rolled steel. Simply speaking, a billet in the heating, rolling through several re-trimming, corrective become steel plate, which is called hot-rolled-steel. The feature of hot rolled steel plate is low hardness, easy processing and good quality. Cold rolled steel is steel plate further rolled into a target thickness of the plate at room temperature. Comparing to hotrolled steel plate, cold rolled sheet thickness is more precise and smooth surface, beautiful and offers a variety of superior mechanical properties, especially the processing performance. And cold rolled steel is often used for cars, refrigerators, washing machines and other appliances, and industrial equipment, construction materials.

In addition to the above-mentioned steel products, there are so many featured steel, like galvanized steel, galvalume steel, prepainted steel, etc. Owing to different features, they will play a different role in related areas.

In modern steel marketing, steel prices are changing based on the economic trends, and steel suppliers are different according to region differences. In order to find the high quality steel suppliers that can provide the proper steel prices and then getting the long cooperation, the internet marking is become important, nowadays, more and more companies own their website of steel to promote their steel products and services, via these ways, for most steel demanders, they can get total information about latest steel market. 

2/01/2012

Africa’s Colourful and Emerging Steel Market


As you may know, there is a good and emerging market in Africa, because the demand of Steel Products is strong for the region’s development, whilst the markets in Europe and America are already quite mature.

More and more trading companies are focusing on Africa and would like to grasp the exciting opportunity to obtain more and more market share in the shortest possible time.

The Steel Products we’ve experienced a heavy demand for in Africa range from Hot Rolled Steel Plate, Galvanized Steel Sheet and Galvanized Steel Coil to Black Welded Pipe and Square Tube or Rectangular Tube. These Steel Products are indeed a diverse mix in this market and the quantity, per type of Steel Product requested in this region, is very abundant.

No trading company dealing with the Steel Products in this industry can let this excellent opportunity pass by. It is, however, obvious that good and bad quality Steel Products are intermingled in this market.

Several months ago, we received an inquiry of 500 tons of Square Tube and Rectangular Tube (Square Tube: 25x25x0.75 --50x50x0.75mm, length 5.7m). As we have affluent experience, we tried our best to provide the best and latest steel prices based on the wall thickness tolerance +/-10%, but our customer received another price nearly 20USD/TON lower than our offer. It was clear that this rival supplier must be providing a much larger wall thickness tolerance to achieve such a low quotation. It was indeed proved that we were right, because when the customer received the Square Tube and Rectangular Tube, the wall thickness was far thinner than his request and he was not satisfied at all.

In order to avoid such problems, we always recommend our customers to carry out an SGS or BV inspection before the goods are delivered to the port. It is equally important to stipulate this in the contract you sign with your supplier, as it will push the supplier to take extra special care in ensuring the Square Tube or Rectangular Tube for example, will indeed be manufactured to the parameters agreed upon in the contract. This way it will give you better peace of mind in knowing the Steel Products you receive will be spot on.