Prime Quality Prepainted Galvanized Steel Coil for Roofing Sheet

Prime Quality Prepainted Galvanized Steel Coil for Roofing Sheet System 1

Prime Quality Prepainted Galvanized Steel Coil for Roofing Sheet

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t.

Supply Capability:: 9000 m.t./month

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Product Description

Prepainted steel coil

Specifications

1.Standard: ASTM,GB,JIS
2.Grade : DX51D+Z
3.Thickness: 0.18-1.5mm
4.Width:914-1250mm
5.Top paint:20mil,Black paint:7mil
6. Technical/Surface treatment: color coated/galvanized/galvalume
7..Useage: widely used in construction,home,appliance,decoration,wear resistant steel,etc.

Advantages:

1. more than 10 years experiences in steel b2usiness
2. good quality
3. competitive price
4. meet your needs via reprocessing
5. excellent service
6. short delivery time

Company :

Tianjin Liwei Iron&Steel Co.,Ltd is the specialized manufacturer of the prepainted steel coil ,
including the PPGI and PPGL . And our products have exported to Korea , Southeast Asia ,
Russia , Middle East ,South America ,South Africa ,Northern Europe and do on .

Product :

Prime Quality Prepainted Galvanized Steel Coil for Roofing Sheet

Commodity :	Prepainted steel coil /PPGI /PPGL
Materials Grade:	SGCC ,CGCC ,DX51D+Z ,SGLCC
Thickness :	0.17-1.2mm
Width :	914mm,1219mm,1000mm,1220mm,1250mm ( can cut to strip above 30mm width )
Zinc coating :	60-275g/sqm
Surface Structure:	Galvanized Or Aluzinc
Color :	RAL No. or Sample color
Painting :	Top : 5micron primer +15-20microns polyester Back : 5-8microns primer epoxy
Coil Weight :	2-6mts
Payment term :	TT ,L/C AT SIGHT , USANCE L/C ,D/P
Shipment :	20 feet container or bulk ship
Remark :	We accept the third-party inspection ,such as SGS , INSPECTORATE ,CIQ

FAQ

1. Do you have QC team?
Yeah, sure, our QC team is very important, they will keep the quality control for our products.for quality inspection every day.

Q: What are the dimensions of steel coils used in the appliance industry?: Steel coils used in the appliance industry can have varying dimensions depending on the specific application and requirements. However, a typical range for these coils is a thickness of 0.015 to 0.035 inches (0.38 to 0.89 millimeters), a width of 24 to 36 inches (61 to 91 centimeters), and a weight between 1,500 to 10,000 pounds (680 to 4,535 kilograms). These dimensions are chosen to facilitate efficient handling, transportation, and processing during the appliance manufacturing process. It is important to verify these dimensions with the manufacturer or supplier for accurate and current information.

Q: What are the different types of edge conditions in steel coils?: Some of the different types of edge conditions in steel coils include mill edge, slit edge, and sheared edge. Mill edge refers to the original edge produced during the steel manufacturing process. Slit edge is created when the steel coil is cut into narrower strips. Sheared edge is formed when the coil is trimmed using a cutting tool. These various edge conditions have different characteristics and can impact the usability and appearance of the steel coils.

Q: What are the challenges in coil leveling for coated steel?: To achieve high-quality, flat, and smooth coils, several challenges must be addressed in the process of coil leveling for coated steel. The first challenge lies in the potential damage to the coating during leveling. Coated steel coils are typically covered with materials like zinc or paint, which are susceptible to scratching or marring if mishandled. The leveling process involves passing the coil through a series of rolls, which can cause friction, abrasion, or other mechanical harm to the coating. Therefore, it is crucial to meticulously control the speed, pressure, and alignment of the rolls to minimize coating damage. The second challenge stems from the variations in thickness across the coil. Coated steel coils often exhibit thickness discrepancies due to inherent material properties or production methods. These variations can lead to uneven leveling, resulting in coils with waviness or inconsistent flatness. Achieving uniform leveling across the entire coil surface is vital to ensure consistent quality and appearance of the final product. Another challenge in coil leveling for coated steel is the possibility of shape distortion. The coating processes can introduce stresses into the steel, causing the coil to warp or distort during leveling. This distortion can lead to coils with irregular edges or uneven flatness. Proper control of leveling process parameters, such as the number of passes and applied tension, is necessary to minimize shape distortion. Furthermore, the coil leveling process can generate internal stresses in the steel, especially in cold-rolled or heat-treated coated steels. These internal stresses can result in coil spring-back, where the coil attempts to revert to its original shape after leveling. Spring-back can cause coils with undesired curvature or inconsistent flatness. Effective strategies, such as stress relief annealing or employing counteracting leveling techniques, are essential to minimize spring-back and achieve the desired flatness. Lastly, handling and storing coated steel coils pose challenges in maintaining the quality of the leveled coils. Coated steel coils are sensitive to environmental conditions, such as humidity, temperature, and exposure to corrosive substances. Proper storage and handling practices are crucial to prevent coating damage, rust, or other forms of deterioration that can occur during transportation or storage. In conclusion, the challenges in coil leveling for coated steel involve minimizing coating damage, addressing thickness variation, controlling shape distortion and spring-back, and ensuring proper handling and storage. Overcoming these challenges necessitates precise control of process parameters, the application of suitable leveling techniques, and strict adherence to quality control measures throughout the entire process.

Q: Can steel coils be coated with PVC?: Yes, steel coils can be coated with PVC. PVC coating provides added protection against corrosion and increases durability and longevity of the steel coils.

Q: How are steel coils used in the manufacturing of railway tracks?: Steel coils are used in the manufacturing of railway tracks as they are processed into long, continuous lengths of steel rails. These coils are first uncoiled and then passed through a series of machines that shape, cut, and weld them together to form the required lengths and profiles of railway tracks.

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: How are steel coils used in the manufacturing of seat structures?: Steel coils are used in the manufacturing of seat structures by being shaped and molded to create the framework and support system of the seats. The coils provide strength and stability to the structure, ensuring durability and comfort for the users.

Q: What type of metal is T10 tool steel?: Carbon Tool Steel usually in the form of forged bar stock. Steel Grades for tool steel can be any of the following (depending on the application) T10/1.1645 SK3/SK4/W1A-91/2/ TC105/y10/1880/BW1B T10A/1.1545/y10A/1880 Standards are published by: DIN, JIS, ASTM, AISI, BS, SS, ISO, TOCT, GB Doug

Q: What are the different types of steel coil slitting machines?: There are several different types of steel coil slitting machines, including rotary shear slitting machines, loop slitting machines, and tension slitting machines. Each type has its own unique features and advantages, but they all serve the purpose of cutting steel coils into narrower strips.

Q: I need to know the density of steel as one of my physical properties of steel. Any answers? If u have more physical or chemical properties of steel, that would help to thanks.: The short answer to your question is that the density of plain mild steel is 7.85. The long answer is that depending on where you look, or the grade of steel that you are talking about can change this value. A density of 7.88 is often quoted for mild steel as well. If you add alloying elements such as tungsten, chrome or manganese to improve the steel, the density will change. So the long answer is that the density of steel can vary between 7.75 and 8.05.

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