color coated galvanized Cold Rolled Steel coils

color coated galvanized Cold Rolled Steel coils System 1

color coated galvanized Cold Rolled Steel coils

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 30000 m.t./month

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Product Description

Pre-painted steel coil/Color coated steel coil

Pre-painted steel coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized steel sheets.

The structure of pre-painted steel includes finished coating, primer coating, chemical conversion coating metallic coating and cold-rolled steel.

The pre-painted steel sheets are mainly provided for various commercial purposes covering architectural construction, electrical household appliances, transportation, etc.

Our Advantages

1. More than 10 years experiences in steel business

2. Good quality

3. Competitive price

4. Meet your needs via reprocessing

5. Excellent service

6. Short delivery time

7. Long mutual beneficial business cooperation

8. Certificate: ISO9001

Technical specification

Commodity	Pre-painted steel coil
Grade	JIS G3302(SGCC), DX51D, EN10142, GB/T2518-2004, ASTM 653
Standard	ASTM, AISI, DIN, GB
Types	Commercial / Drawing / Deep Drawing / Structural quality
Width	500/650/726/820/914/1000/1200/1219/1220/1250mm
Thickness	0.12-1.2mm (0.14-0.5mm is the most advantage thickness)
Type of coating	Galvanized
Zinc / PE coating	Z40-270g/m2,12-20μm(top)/7-10μm(bottom)
Surface	RAL System as per customers request
ID coil	508mm
Coil weight	4-6MT
Package	Properly packed for ocean freight exportation
Application	Industrial panels, roofing and siding for painting
Payment terms	30%TT in advance+70% TT or irrevocable 100%L/C at sight
Delivery time	25 days after receipt of 30% TT or L/C

Q: Which steels were origianally designed to be used to cut and shape metals and other materials?- alloy steel- high carbon steel- carbide steel- tool steelthanks: Steels okorder

Q: What are the different methods of coil rewinding for steel coils?: There are several different methods of coil rewinding for steel coils, including manual rewinding, semi-automatic rewinding, and fully automatic rewinding. In manual rewinding, the coils are rewound by hand using a winding machine or tool. Semi-automatic rewinding involves the use of a machine that assists with the rewinding process, but still requires some manual intervention. Fully automatic rewinding, on the other hand, involves the use of advanced machinery that can automatically rewind the steel coils without any manual intervention. These different methods offer varying levels of efficiency, speed, and precision in the coil rewinding process.

Q: I've heard on some 1911 forums that the slides of Armscor guns are now extruded. What is extruded steel? How is it made? Are they strong (4140carbon steel was used in the process).: Extruded steel is only the steel being run through a die when it is heated, it usually reduces the size of the grain of the steel itself, enhancing toughness. Realistically though, in a handgun, it doesn't matter if the frame is cast or forged, both types will hold up to any amount of abuse, unless you use it as a sledgehammer, and are splitting stones with it, then the forged frame would win. 4140 is more than adequate for a slide/frame. Hell, even mild steel would be adequate as long as you don't mind some dings and scratches, and again, don't use it as a sledgehammer...

Q: What are the safety precautions for handling steel coils?: Some safety precautions for handling steel coils include wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toed boots to protect against potential injuries. It is important to ensure proper lifting techniques are used, utilizing equipment like forklifts or overhead cranes when necessary. Coils should be stored and stacked securely to prevent them from falling or rolling. Regular inspections of coils and equipment should be conducted to identify any potential hazards or damages. Additionally, workers should be trained on safe handling procedures and be aware of the weight and dimensions of the coils they are handling.

Q: How can defects in steel coils be detected?: Defects in steel coils can be detected through various non-destructive testing methods such as visual inspection, ultrasonic testing, magnetic particle inspection, eddy current testing, and radiographic testing. These techniques help identify surface cracks, internal flaws, irregularities in thickness, and other defects, ensuring the quality and integrity of the steel coils.

Q: I had heard of steel braided fuel lines but ive also seen some air and coolant lines that are steel braided. Are these commonly used? I guess what I'm asking is if its a good idea to use them.: Very good idea depending on the application. The steel braid reinforces the rubber to make it withstands pressure. Example, pressure side of power steering pump is reinforced, the return side doesn't usually need to be. Carbed cars usually run around 3-7 lbs on fuel line so no need, fuel injected cars run roughly 45 psi and up usually so those are braided.

Q: How would you calculate the maximum plastic deformation (expansion) a steel pipe can handle before it actually fails?: You can calculate the maximum reversible strain, for elastic loading as follows: You need to look up the yield strength (for that particular type of steel). Divide this yield strength by the elastic modulus of steel (also called Young's modulus). That gives you the strain at the onset of yielding, the maximum you can strain the steel fibers before crossing the point of no return. If you are interested in the strain until failure, you need to take tensile test measurements. Seldom do people document an equation to model the non-elastic portion of the stress-strain curve of the specimen, because seldom do we design systems to operate with materials which yield. We want systems which only deform reversibly and elastically. This means you need to perform an experiment to find what you are actually desiring to know.

Q: i have recently gotten into DIY and am planning on making my own knife. My question is what kind of steel would be good to use for heat treating if i plan on using water and not oil in the process.: Go to junkyard get old leaf spring, cut out knife, start sharpening. Why waste time heat treating steel when the spring steel as already be done.

Q: What are the different methods of joining steel coils?: There are several methods of joining steel coils, including welding, mechanical fastening, adhesives, and interlocking systems. Welding involves fusing the ends of the coils together using heat or pressure. Mechanical fastening includes using bolts, screws, or other fasteners to hold the coils together. Adhesives can be used to bond the coils, providing a strong and durable connection. Interlocking systems involve designing the coils with special shapes or profiles that fit together, creating a secure joint.

Q: What are the different methods of coil recoiling for narrow strip widths?: There exists a variety of techniques for coil recoiling targeted at narrow strip widths. One technique, known as slitting and recoiling, entails slicing the wide coil into narrower strips and then rewinding them onto a smaller coil. This is typically accomplished using a slitting machine, which can make precise cuts to achieve the desired strip widths. Another approach, referred to as edge trimming and recoiling, involves trimming the edges of the wide coil to generate narrower strips. The remaining material is then rewound onto a smaller coil. This method is commonly employed when the coil edges are damaged or uneven and need to be removed before recoiling. Furthermore, there is a method called tension recoiling. In this process, the wide coil is threaded through a series of tensioning devices that aid in achieving the desired strip widths. The tensioning devices can apply controlled pressure to the coil edges, enabling precise recoiling of narrow strips. Additionally, some companies opt to employ laser cutting technology for coil recoiling. This technique entails using a laser beam to slice the wide coil into narrow strips, which are then rewound onto a smaller coil. Laser cutting offers exceptional precision and accuracy, making it an ideal choice for narrow strip widths. In summary, the various methods of coil recoiling for narrow strip widths consist of slitting and recoiling, edge trimming and recoiling, tension recoiling, and laser cutting. Each approach possesses its own merits and is selected based on the specific requirements and capabilities of the manufacturing process.

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