prepainted steel coils JIS G 3312 System 1

prepainted steel coils JIS G 3312 System 2

prepainted steel coils JIS G 3312

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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PREPAINTED STEEL COIL

Packaging & Delivery

Packaging Detail: seaworthy export package

Delivery Detail: on request

Specifications

1. more than 10 years’ experience on this field

2. advanced equipments

3. competitive price

4. soonest delivery

Product Description :

Commodity

PREPAINTED STEEL COIL

Technical Standard: JIS 3312

Grade：CGCC

Types:Commercial / Drawing / Deep Drawing / Structural quality

Width: 900mm/1000mm/1219mm/1200mm/1220mm/1250mm

Thickness: 0.2mm~4.0mm

Type of coating: galvanized

Zinc coating: Z40-275g/m2,Z40-Z450g/m2

ID coil: 508mm or 610mm

Coil weight: 3-10/MT per coil

Package:Properly packed for ocean freight exportation in 20''container

Application::home appliances, constructions, building, machineries

Our Advantages :

1. Expertise:
More than 10 years of manufacture: we know how to properly handle every step of production.
2. Competitive price:
We can offer competitive prices to our customers.
3. Accuracy:
We have excellent technicians and leaders, which can ensure our products are exactly what you want.
4. Materials:
All galvanized steel coils are made of high-quality raw materials.
5. Certificate:
Our products are certified by ISO9001.
6. Productivity:
We have large-scales of production lines,, which can guarantee all your orders will be finished in earliest time.

Hr CGL Technical Process:

Coil loading-> uncoiling-> cutting-> welding-> entry accumulator-> Heating and deoxidization-> galvanizing-> air cooling->water quenching-> air dryer-> tension leveler-> Passivation->air dryer->exit accumulator-> oiling-> cutting-> recoiling->coil unloading-> packing

The furnace heating style: improved Sendzimir heating technology

Hourly output: max.76.3t/h

Process after coating: tension leveling, Passivation or oiling

Our Service

Our quality

Test Equipments of Prepainted Galvanized Steel Coil : Salt-spray tester; Atomic absorption spectrophotometer; Rockwell typer hardness tester; Tensile test machine; Metrohm titration; Laboratory Bend test machine.

Our packing

Properly packed for ocean freight exportation in 20''container, galvanized metal fluted rings on inner and outer edges, galvanized metal & waterproof paper wall protection disk, galvanized metal & waterproof paper around circumference.

R&D department

R&D department concentrates on researching and developing reliable products with best quality. The quality department test and control every process of production to guarantee the best quality of product

Q: What is the shelf life of a steel coil?: The shelf life of a steel coil can vary depending on various factors such as the type of steel, storage conditions, and specific industry requirements. However, in general, if properly stored and protected from moisture, corrosion, and other damaging factors, a steel coil can have a shelf life of several years.

Q: How are steel coils used in the production of building systems?: Steel coils are used in the production of building systems by being processed and shaped into various components such as beams, columns, and trusses. These coils are fed into machines that cut, bend, and mold them into the desired shapes, providing structural support and stability to the building.

Q: What are the different types of steel coil slitting methods?: There are three main types of steel coil slitting methods: rotary slitting, loop slitting, and oscillating slitting. Rotary slitting involves using a circular knife to cut the coil into smaller strips. Loop slitting involves creating a loop in the coil and then cutting it using a straight knife. Oscillating slitting involves using a reciprocating knife to make a back-and-forth motion while cutting the coil. These methods allow for precise and efficient slitting of steel coils into narrower strips.

Q: hello guys. im totally new to this metalwork things. i need to do it for my project. i need to join stainless steel wires to build some kind of structure (eiffel tow. for example).i already have the wire and the torch. now the question is: where do i get silver solder? is it expensive? and what is flux for? is it necessary? what does it do? is it expensive?thank u for ur time guys! :): Silver Solder is more expensive than lead/tin solder as it contains silver. It also melts at a much higher temperature. You require special Flux designed for stainless steel and silver solder. Cost of Silver Solder and Flux will depend on the quality, quantity, and where you are located. Prices vary from area to area especially country to country. Instructions: 1: Clean all surfaces to be soldered with solvent and a wire brush to remove all grease, corrosion or dirt. 2: Apply a coating of flux to the stainless steel parts you are connecting. If you are soldering brass or copper parts to the stainless steel, tin them first by heating them and applying a thin coat of solder to the area that connects to the stainless steel. 3: Hold your parts together with wire or clamps. Make sure the surfaces fit flush. Silver solder will not fill gaps. 4: Heat the parts with a torch until the solder flows onto the joint. When the parts are hot enough, the solder will instantly turn to liquid when it touches the metals, then it will flow into the joint. If it does not do this, keep heating the metal until it does, but do not heat the solder directly. Only allow the hot metal to melt the solder. 5: Remove the torch and solder as soon as a sufficient amount of solder melts onto the joint. You don't need much, and a glob can look ugly. 6: Allow the metal to cool before touching or cleaning it. You can dunk it in water to cool it faster.

Q: How are steel coils processed for different levels of hardness?: Different levels of hardness can be attained in steel coils using a variety of methods. One common approach is heat treatment, in which the coils are heated to a specific temperature and then rapidly cooled to modify their microstructure and achieve the desired hardness. The heat treatment process can encompass quenching, tempering, or annealing, depending on the desired hardness level. Quenching involves quick cooling of the coils in a liquid medium like water or oil to achieve a high hardness level. On the other hand, tempering requires reheating the coils to a lower temperature and gradually cooling them to attain a desired balance between hardness and toughness. Annealing, on the other hand, involves heating the coils to a specific temperature followed by slow cooling to release internal stresses and obtain a softer and more malleable material. Additionally, mechanical processes like cold rolling or cold working can be employed to enhance the hardness of steel coils. These processes involve applying compressive forces to the coils, causing the material to deform and resulting in increased hardness. Overall, achieving different hardness levels in steel coils requires meticulous control of temperature, cooling rate, and mechanical forces to obtain the desired properties for specific applications.

Q: What are the different types of steel coil cuts?: There are several different types of steel coil cuts that are commonly used in various industries. These cuts are made during the steel manufacturing process to produce steel coils of different sizes and shapes, which can then be used for different applications. 1. Slit Coil: Slit coil is one of the most common types of steel coil cuts. In this process, a large steel coil is cut into narrower strips or slits. Slit coils are typically used for applications that require smaller widths, such as automotive parts, appliances, and construction materials. 2. Sheet Coil: Sheet coil is another type of steel coil cut that involves cutting a large coil into flat sheets. These sheets can be further processed to create different products, such as roofing materials, cladding, or fabrication components. 3. Blanked Coil: Blanking is a process in which a steel coil is cut into custom-shaped blanks. These blanks can be used for various purposes, such as forming into different parts, stamping, or machining. Blanked coils are commonly used in industries like automotive, aerospace, and manufacturing. 4. Precision Slit Coil: Precision slit coil is a specialized type of coil cut that involves cutting the steel coil with high precision and accuracy. This process ensures consistent width tolerances throughout the coil, making it suitable for applications that require precise dimensions, such as electrical components, precision tools, and automotive parts. 5. Oscillate Wound Coil: Oscillate wound coil is a unique type of steel coil cut that involves winding the steel strip in a zigzag pattern rather than a traditional flat coil. This method allows for tighter coil winding and can maximize the amount of steel on a coil. Oscillate wound coils are commonly used in industries that require high-volume production, such as stamping and roll forming. Overall, the different types of steel coil cuts cater to the specific needs of various industries, providing them with the flexibility to create products of different sizes, shapes, and dimensions.

Q: What are the applications of steel coils in the aerospace industry?: The aerospace industry relies heavily on steel coils for various purposes. One important application is in the manufacturing of aircraft structures. Steel coils are commonly used to fabricate wing spars, fuselage frames, and landing gear, as they possess high strength and durability necessary to withstand heavy loads and extreme conditions. Another significant use of steel coils in the aerospace industry is in the production of engine components, specifically turbine blades. These blades experience high temperatures and rotational forces, making it crucial to utilize steel coils due to their excellent heat resistance and mechanical properties. This ensures the reliability and performance of aircraft engines. Steel coils also find utilization in the production of fasteners and connectors necessary for securely joining different parts of an aircraft. Bolts, nuts, and rivets made from steel coils are essential for maintaining the structural integrity and safety of the aircraft. These fasteners need to possess high tensile strength and corrosion resistance. Furthermore, steel coils are employed in the production of fuel tanks and hydraulic systems. The weldability and formability of steel allow for the efficient fabrication of these complex structures. Steel coils can be shaped into various sizes and configurations, providing flexibility in designing fuel tanks and hydraulic components that meet specific requirements. In conclusion, steel coils are indispensable in the aerospace industry. Their use in aircraft structures, engine components, fasteners, and fuel tanks highlights their versatility and reliability. The exceptional strength, durability, heat resistance, and formability of steel make it the preferred material for various aerospace applications, ultimately ensuring the safety and performance of aircraft.

Q: How are steel coils used in the production of electronic devices?: Steel coils are used in the production of electronic devices for various purposes, such as creating magnetic fields, providing structural support, and acting as conductors in transformers and inductors. These coils are typically wound around a core material, such as ferrite or laminated iron, to enhance their magnetic properties and improve their performance in electronic circuits.

Q: What are the different methods of coil joining for steel coils?: There exists a variety of techniques for joining steel coils, each with its own advantages and limitations. Some commonly employed methods encompass the following: 1. Welding: Among the most popular methods of coil joining, welding involves the use of heat to melt and fuse the edges of steel coils. Arc welding, resistance welding, or laser welding can be utilized for this purpose. Welding offers a robust and durable joint, although it can be time-consuming and necessitate skilled operators. 2. Mechanical fastening: This technique entails the use of mechanical fasteners like clips, staples, or bolts to connect the edges of steel coils. Mechanical fastening is relatively quick and straightforward, and it allows for easy disassembly if needed. However, the joint may not be as strong as welding and can be prone to loosening over time. 3. Adhesive bonding: Adhesive bonding involves the use of a suitable adhesive or glue to bond the edges of steel coils. This approach yields a strong and uniform joint, while also providing protection against corrosion. However, adhesive bonding may require surface preparation and curing time, and it might not be suitable for high-temperature applications. 4. Interlocking or tongue-and-groove joints: This method involves shaping the edges of steel coils in a manner that they interlock or fit together like puzzle pieces. Interlocking joints provide good alignment and are easily assembled and disassembled. Nevertheless, they may not yield as strong a joint as welding or mechanical fastening. 5. Coil-overlapping: In this method, the edges of steel coils are overlapped and clamped together using mechanical means. Coil-overlapping is a simple and cost-effective technique, albeit it may not yield a strong joint and can result in uneven coil edges. When selecting the appropriate method of coil joining for steel coils, it is crucial to consider factors such as application requirements, strength requirements, cost, and production efficiency.

Q: How are steel coils used in the production of storage tanks and silos?: Due to their strength and durability, steel coils are essential in the production of storage tanks and silos. Typically made from high-quality steel, these coils undergo various manufacturing techniques to achieve the desired thickness and shape. In the production process, the steel coils are initially uncoiled and then cut into specific sizes and lengths to meet the requirements of the storage tank or silo design. Bending and rolling machines are then used to shape the coils into cylindrical sections, forming the main body of the tank or silo. After achieving the desired shape, the coils are welded together to create a continuous and secure seam. This welding process ensures leak-proof tanks and silos that can withstand the pressure exerted by the stored materials. Furthermore, steel coils play a crucial role in reinforcing the structure of storage tanks and silos. They are frequently utilized to construct the roofs, bottoms, and other structural components of these storage units. The strength and resilience of steel make it ideal for supporting the weight of the stored materials and resisting external forces. Additionally, steel coils can be coated or treated with protective materials to enhance their resistance to corrosion and extend their lifespan. This is particularly important for storage tanks and silos that store corrosive substances or are exposed to harsh environmental conditions. In conclusion, steel coils are a fundamental element in the production of storage tanks and silos, providing the necessary strength, durability, and structural integrity required for these storage units.

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