Hot rolled steel sheets/coils

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Product:	Hot Rolled Steel Coils/Sheets
Material:	Q195,Q235,A36,SS400,S235JR,Q345,ST37-2, CCSB etc
Standard :	JIS G3002 GB/T251B
Technique:	hot rolled
Thickness	1.2mm to 200mm
Tolerance of thickness:	:+/-0.03mm
Width:	750mm-2000mm
Tolerance of width:	:+/-5.00mm (aiming to +/-2.00mm)
Normal width:	914mm, 1000mm, 1200mm, 1219mm, 1250mm,1500mm
Length:	According to requirement
Coil ID:	508mm-610mm
Coil Weight:	10-25 Metric Tons
Surface:	Black, Chromate, fingerprint resistant treatment, slight oiled or non-oiled, dry
Port of Loading:	Tianjin/Shanghai port
Packaging Details:	Standard export packing or according to the clients required
Delivery Time	Within 30 days after received 30% deposit or workable L/C
Payment Terms:	L/C,T/T

Q: How are steel coils processed and treated?: To ensure the quality and suitability of steel coils for different applications, they undergo a series of steps and treatments. Initially, the coil is uncoiled by removing its protective wrapping and unwinding it. Any defects like cracks or uneven surfaces are then inspected. Next, the coil is cleaned to eliminate dirt, oil, and rust using chemical agents and mechanical scrubbing. After cleaning, it is rinsed and dried to prevent corrosion caused by residual moisture. Once cleaned, the steel coil may be treated based on its intended use. One common treatment is pickling, where the coil is immersed in an acidic solution to remove impurities and scale. This improves the surface finish and prepares the steel for further processing. After pickling, the coil can undergo cold rolling, which reduces its thickness and improves dimensional accuracy. This is done by passing the steel through a series of rollers at room temperature, gradually decreasing thickness and increasing strength. It also improves the surface finish. In some cases, the coil may undergo additional heat treatments like annealing or tempering. Annealing involves heating the coil to a specific temperature and slowly cooling it to relieve internal stresses and improve mechanical properties. Tempering, on the other hand, involves reheating the coil to a lower temperature and rapidly cooling it to enhance strength and toughness. Once the desired processing and treatments are completed, the steel coil may be coated or painted for added protection against corrosion or to enhance its appearance. Coating processes can include hot-dip galvanizing, electroplating, or applying organic coatings like paint or powder coatings. Finally, the processed and treated steel coils are cut into specific sizes or shapes according to customer requirements. This can be done using cutting methods such as shearing, slitting, or sawing. Overall, the processing and treatment of steel coils involve cleaning, pickling, rolling, heat treatment, coating, and cutting processes. These steps are carefully carried out to ensure the quality, strength, and suitability of the steel for its intended applications.

Q: I wanna strip down my bike and take off all the paint... im thinking of leaving it just the steal color... Do i need to put anythinng on the steel to coat it or can i just leave it like that... Will it rust or anything?: If it's stainless steel or aluminum, it won't rust. Chances are the bike parts that have been painted are of metals that will rust. If you like the metal color, then you can get paints that look like metal or you can clear coat it. You might want to consider just a grey primer.

Q: i see a lot of connexes say repair only with corten steel. what is the difference between corten steel and regular steel. and if i was going to stick weld it what type of electrode would i use?and while i'm at it what is the best electrode to use when welding galvenized steel?: 6010 and 6011 Electrodes for welding galvenized steel. Weathering steel, best-known under the trademark COR-TEN steel and sometimes written without the hyphen as Corten steel, is a group of steel alloys which were developed to obviate the need for painting, and form a stable rust-like appearance if exposed to the weather for several years. The corrosion-retarding effect of the protective layer is produced by the particular distribution and concentration of alloying elements in it. The layer protecting the surface develops and regenerates continuously when subjected to the influence of the weather. In other words, the steel is allowed to rust in order to form the 'protective' coating. For welding corten steel: 1A.W.S ClassificationE 7018 - 1AWS A 5 - 1 - 78 2IS classificationE 5424 JXIS 814 (Part I II)H 3BS classificationE 51.54 B 12 17HBs 639 - 1976

Q: What are the common applications of coated steel coils?: The excellent properties and versatility of coated steel coils make them suitable for a wide range of applications in various industries. Some common uses of coated steel coils include: 1. Construction industry extensively employs coated steel coils for roofing, cladding, and wall panels. The coating ensures long-lasting structures by providing superior corrosion resistance, durability, and weatherability. 2. In the automotive industry, coated steel coils are widely used for manufacturing body panels, bumpers, and chassis parts. The coatings enhance aesthetics, protect against corrosion, and improve paint adhesion for a flawless finish. 3. Coated steel coils find utility in the production of household appliances like refrigerators, washing machines, and ovens. The coatings provide an attractive, smooth finish while protecting the steel from moisture and environmental factors. 4. Heating, Ventilation, and Air Conditioning (HVAC) systems commonly utilize coated steel coils for manufacturing ductwork, air handling units, and heat exchangers. The coatings ensure resistance against corrosion and improve system efficiency. 5. The furniture industry also makes use of coated steel coils for manufacturing cabinets, tables, and chairs. The coatings provide a decorative finish while protecting the steel from wear and tear. 6. Electrical equipment production, including switchboards, control panels, and enclosures, involves the use of coated steel coils. The coatings provide insulation and protection against electrical conductivity, ensuring durability. 7. In the packaging industry, coated steel coils are used for manufacturing cans, containers, and closures. The coatings act as a barrier against moisture and prevent contamination, ensuring the preservation and safety of packaged products. In conclusion, coated steel coils offer corrosion resistance, durability, aesthetics, and protective properties, making them suitable for various applications across industries. From construction to automotive, appliances to furniture, and even in electrical equipment and packaging, coated steel coils play a crucial role in delivering high-quality products and ensuring long-lasting performance.

Q: How are steel coils used in the petrochemical industry?: Steel coils are commonly used in the petrochemical industry for various purposes such as manufacturing pipes, tanks, and equipment used in the processing and transportation of petrochemical products. The coils are typically formed into specific shapes and sizes to meet the industry's requirements, ensuring structural integrity and resistance to corrosion. These steel components play a critical role in maintaining the safety and efficiency of petrochemical operations.

Q: Hello... I'd like to know where I can find proof of this answer as well please. My own searching didn't come up with anything concrete.I'd like to know how much the ambient temperature inside of a hollow steel tube would rise by if the outside of that tube was exposed to an 1100 degree flame for a period of 3 seconds.If specifics help, they are something along the lines of 3.125 O.D. tube, 0.35 wall thickness. High grade steel, can't be more specific than that sorry.Thanks for any answers!: yes it is very possible. as what our teacher in physics said that steel is a good conductor of heat..

Q: How are steel coils used in the manufacturing of wires?: Steel coils are used in the manufacturing of wires by being fed into wire drawing machines, where they are gradually reduced in diameter through a series of dies. The steel coils serve as the initial raw material, providing the necessary strength and flexibility for the wires to be produced.

Q: What are the different types of steel coatings for coil protection?: Some of the different types of steel coatings for coil protection include galvanized coatings, metallic coatings, organic coatings, and polymer coatings.

Q: what do you think about producebility of low density steel? for example: can density of 1020 steel (or ony others) be decreased without any loss of other properties.: If a material has a lower density than steel, then it isn't steel.

Q: What are the common coil processing equipment used in the industry?: Some common coil processing equipment used in the industry include coil slitters, coil flatteners, coil feeders, and coil recoilers. These machines are essential for processing metal coils into various shapes and sizes, allowing for efficient production and manufacturing processes.

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