Best Prepainted Galvanized steel Coil JIW

Best Prepainted Galvanized steel Coil JIW System 1

Best Prepainted Galvanized steel Coil JIW

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 11 m.t.

Supply Capability:: 11 m.t./month

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With Gi as base metal,after pretreatmet (degrease and chemical treatment) and liquid dope with several Layers of color,then after firing and cooling,finally the plate steel is called prepainted galvanized steel ( PPGI) .Prepainted galvanized steel is good capable of decoration ,molding,corrosion resistance The carbon in typical steel alloys may contribute up to 2.1% of its weight. Varying the amount of alloying elements, their formation in the steel either as solute elements, or as precipitated phases, retards the movement of those dislocations that make iron comparatively ductile and weak, and thus controls qualities such as the hardness, ductility, and tensile strength of the resulting steel. Steel's strength compared to pure iron is only possible at the expense of ductility, of which iron has an excess.

2.Main Features of Prepainted Galvanized steel Coil：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

Although steel had been produced in bloomery furnaces for thousands of years, steel's use expanded extensively after more efficient production methods were devised in the 17th century for blister steel and then crucible steel. With the invention of the Bessemer process in the mid-19th century, a new era of mass-produced steel began. This was followed by Siemens-Martin process and then Gilchrist-Thomas process that refined the quality of steel. With their introductions, mild steel replacedwrought iron.

3.Prepainted Galvanized steel Coil Images

Best Prepainted Galvanized steel Coil JIW

4.Prepainted Galvanized steel Coil Specification

Standard:ASTM, GB,JIS,JIS G3302 ASTM 755 EN10169

Grade: DX51D CGCC CS

Thickness: 0.13mm~3.0mm,

Width: 1250,600-1250mm

Coil weight:3-12 MT

Coil ID:508/610mm

Chemical composition:

0.150

0.476

11.231

12.50

0.900

0.039

0.010

5.FAQ of Prepainted Galvanized steel Coi

We have organized several common questions for our clients，may help you sincerely：

1.How do you control your quality

We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

2.how long we will receive the goods ？

After receiving your deposit or workable lc ,our normal shipment date is 15-20days,and it takes around 28 days to reach your port of destination. But is up to different destination

3. what is your moq

Normally our moq is 25per size ,but it is up to different size

Q: What are the different types of slitting techniques for steel strips?: There are several different types of slitting techniques for steel strips, including rotary slitting, loop slitting, and pull-through slitting. Each technique has its own advantages and is used for specific applications in the steel industry.

Q: How are steel strips used in the production of automotive brakes?: Steel strips are used in the production of automotive brakes as they provide strength and durability to the braking system. These strips are commonly used for manufacturing brake pads, which are crucial components that come into contact with the rotors to slow down or stop the vehicle. The steel strips act as a base material for brake pads, ensuring they can withstand high temperatures and friction generated during braking. Additionally, the strips may be utilized in other brake system parts like shims, springs, or backing plates, contributing to the overall effectiveness and reliability of automotive brakes.

Q: How are steel strips processed for interlocking?: To achieve interlocking, steel strips undergo a series of steps involving precision cutting, shaping, and assembly. It all begins with selecting high-quality steel strips that meet the necessary specifications. These chosen strips are then cut into specific lengths and widths using advanced cutting techniques like shearing or laser cutting. After the initial cutting, further processing may be done to create interlocking features. This can involve shaping the edges of the strips to form interlocking profiles or adding specialized notches or grooves that allow for secure connections. Machining techniques like milling or grinding might be employed to achieve the desired interlocking design. Once the interlocking features are formed, the steel strips undergo careful inspection to ensure accuracy and quality. Any imperfections or burrs are removed through deburring or polishing processes to guarantee smooth and precise interlocking. The final step in processing steel strips for interlocking is assembly. The interlocking profiles of the strips are meticulously aligned and joined together using welding, riveting, or other suitable methods. This assembly process ensures that the interlocking steel strips create a strong and secure connection capable of meeting the requirements of the intended application. In summary, the process of processing steel strips for interlocking involves a combination of cutting, shaping, and assembly techniques to create precise interlocking profiles. This guarantees that the resulting interlocking system offers a reliable and durable solution for various applications such as construction, manufacturing, or infrastructure projects.

Q: How are steel strips recycled?: Steel strips are recycled by first being collected and sorted from various sources such as manufacturing plants, construction sites, and scrap yards. These strips are then cleaned and processed to remove any contaminants. Next, they are shredded into smaller pieces and melted in a furnace to form molten steel. The molten steel is then poured into molds to create new steel products or rolled into sheets to be used in various applications. This process helps conserve natural resources, reduce waste, and minimize the environmental impact of steel production.

Q: Can steel strips be used in the production of aircraft components?: Indeed, the utilization of steel strips is feasible in the fabrication of aircraft components. The aerospace industry has extensively incorporated steel due to its robustness and longevity, employing it for manifold purposes. Structural elements like brackets, frames, and reinforcements can be fashioned from steel strips, along with the production of hinges and fasteners. The appropriateness of steel for distinct aircraft components hinges on the specific steel variant and its attributes, encompassing strength, resistance to corrosion, and weight. It is crucial to guarantee that the employed steel strips conform to the mandated specifications and standards to ensure both aviation safety and optimal performance.

Q: What is the width tolerance of steel strips?: The width tolerance of steel strips can vary depending on the specific requirements and standards set by the industry or customer. Typically, the width tolerance for steel strips is indicated as a range or maximum deviation allowance. It can be expressed as a percentage or an absolute measurement. For instance, the width tolerance for steel strips might be set as ± 0.005 inches or ± 0.25% of the nominal width. This indicates that the actual width of the steel strip can fluctuate within this specified range without affecting its quality or suitability for its intended application. It is important to note, however, that the width tolerance may differ for various grades or types of steel strips. Consultation of the relevant standards or specifications is vital to establish the precise width tolerance requirements.

Q: How are steel strips used in the construction of buildings?: Steel strips are commonly used in the construction of buildings for various purposes such as reinforcement, framing, and cladding. They provide structural integrity, support, and durability to the building, enhancing its strength and stability. Steel strips are often used in concrete beams and columns to increase their load-bearing capacity, and they can also be used to create frameworks for walls and roofs. Additionally, steel strips are frequently employed as cladding material to protect the building from external elements and provide an aesthetically pleasing appearance.

Q: What are the standards and certifications applicable to steel strips?: Steel strips must adhere to various standards and certifications to ensure their quality, safety, and compliance with industry regulations. Some of the main standards and certifications include: 1. ASTM International Standards: Steel strips are subject to recognized standards like ASTM A109, ASTM A240, ASTM A568, and ASTM A1018. These standards outline requirements for steel grades, dimensions, tolerances, mechanical properties, and chemical compositions. 2. ISO Standards: ISO 9001 is a globally recognized certification for quality management systems, ensuring consistent product quality, customer satisfaction, and continuous improvement. ISO 14001 is an environmental management system certification that focuses on minimizing the environmental impact of production processes. 3. EN Standards: European standards such as EN 10130, EN 10139, EN 10268, and EN 10152 define technical specifications for cold-rolled and hot-rolled steel strips. They cover aspects like surface finish, dimensional tolerances, mechanical properties, and chemical compositions. 4. JIS Standards: The steel industry widely uses Japanese Industrial Standards (JIS) like JIS G3131, JIS G3141, JIS G3311, and JIS G4801. These standards provide specifications for steel strips used in automotive, construction, and electrical industries, among others. 5. SAE Standards: The Society of Automotive Engineers (SAE) has established various standards for steel strips used in automotive applications. These standards ensure that the steel strips are suitable for specific automotive components, considering factors like strength, ductility, and formability. 6. PED Certification: Steel strips used in pressure vessels and related equipment must obtain the Pressure Equipment Directive (PED) certification. This certification guarantees compliance with safety requirements and quality standards for pressure equipment across different industries. 7. RoHS Compliance: The Restriction of Hazardous Substances (RoHS) certification restricts the use of certain hazardous substances in electrical and electronic equipment, including steel strips used in such applications. This certification ensures the safety of end-users and compliance with environmental regulations. Manufacturers, suppliers, and consumers must ensure that the steel strips they use or purchase meet these standards and certifications. Adhering to these standards and certifications guarantees the quality, reliability, and safety of steel strips for various applications.

Q: Are steel strips suitable for the production of hand tools?: Yes, steel strips are suitable for the production of hand tools. Due to their high strength, durability, and resistance to wear and tear, steel strips are commonly used in the manufacturing of various hand tools. The material provides the necessary rigidity and structural integrity required for hand tools to withstand heavy usage and perform effectively. Additionally, steel strips can be easily shaped, heat-treated, and tempered to enhance their hardness and functionality, making them an ideal choice for hand tool production.

Q: What are the different heat treatment processes used for steel strips?: Steel strips can undergo various heat treatment processes to achieve specific properties and benefits. These processes, including annealing, quenching and tempering, hardening, and case hardening, serve different purposes. To soften steel strips, annealing is employed by heating them to a specific temperature and gradually cooling them. This relieves internal stresses, enhances machinability, and improves ductility and toughness. Annealing is ideal for steel strips used in deep drawing or forming operations. For both hardness and toughness, quenching and tempering is a two-step process. Initially, steel strips are heated to a high temperature and rapidly cooled through quenching in oil or water, resulting in extreme hardness. However, this hardened state is too brittle for most applications. To address this, the steel strips are reheated to a lower temperature and then slowly cooled, which slightly reduces hardness but significantly enhances toughness and strength. To increase hardness and wear resistance, hardening is employed. Steel strips are heated to a specific temperature and rapidly cooled through quenching, causing a martensitic transformation and resulting in a hardened structure. These hardened steel strips are commonly used in applications requiring high wear resistance, such as cutting tools or machine parts. Case hardening, on the other hand, focuses on creating a hard outer layer while maintaining a softer core. By heating steel strips in a carbon-rich atmosphere, carbon atoms diffuse into the surface. Subsequently, the steel strips are quenched, hardening the outer layer while preserving a relatively soft and tough core. Case hardening is frequently used for applications necessitating both wear resistance and toughness, such as gears or bearings. In conclusion, steel strips can be customized for different applications through various heat treatment processes, namely annealing, quenching and tempering, hardening, and case hardening. Each process serves a specific purpose and offers distinct benefits.

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