Hot dipped 55% AL-ZN Coated Galvalume steel coil

Hot dipped 55% AL-ZN Coated Galvalume steel coil System 1

Hot dipped 55% AL-ZN Coated Galvalume steel coil

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 100000 m.t./month

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Packaging & Delivery

Packaging Detail:	Seaworthy Packing
Delivery Detail:	25days

Specifications

Galvalume steel coils
Min Yield Strength of 550MPA
Min/Regular Spangle
Zinc coating:60-600g/m2

Hot Dipped 55% Aluminum Zinc Alloy Coated Steel by the Hot-Dip Process

Hot Dip Galvalume steel coil EN 10327 JIS G3321, ASTM A792M 55% AL-ZN coated

Description:

The hot dip galvalume steel is a kind of coated steel. With the cold rolled steel of different strength and thickness as substrate, it is produced through applying Al-Zn coat on both faces by hot dip process. In its coating, Al accounts for about 55%, Si 1.6%, while the remaining is Zn. It enjoys both the physical protective feature and durability of Al and the electrochemical protective property of Zn. And its surface has bright silver color and regular embossed-like figure, which are highly decorative.

Comparison

Item	GI	GF(Zn-5%Al)	GALVA-LUME(55%Al-45%Zn)	Al
Service Life	Fair	Fair	Good	Good
Electrochemical Protection	Good	Good	Good	N/A
Welding Performance	Good	Fair	Poor	Poor
Application with Wet Concrete	Good	Poor	Very Poor	Very Poor
Thermal Resistance	Poor	Poor	Good	Excellent

Specifications:

Standard	EN 10327	DX51D+AZ, DX52D+AZ, DX53D+AZ,
	EN 10326	SS250GD+AZ, SS350GD+AZ
	JIS G3321	SGLCC, SGLCD, SGLCDD, SGLC 400
	ASTM A792M	CS type C, CS type B, DS, SS255, SS345
Base Metal	Cold rolled steel coils SPCC, SPCD, SPCE, DC01, DC03, DC04, CS, DS, DDS, Q195, Q250, Q350
Thickness	0.22mm-2.0mm
Width	700mm-1300mm
Coil ID	508mm, 610mm
Zinc coating	60g/m2-180g/m2
Surface treating	chromium free passivation, chromium passivation, fingerprint resistant, oiled
Spangle types	regular spangle

Applications:

Architecture	Roofs and outside walls of civilian and industrial buildings, garage doors, fencings and window blinds
Appliances Industry	Outer clad sheets for washing machine, refrigerator, television, air conditioner and ventilation system, explosion-proof strip, solar water heater and appliance parts
Auto Industry	Muffler, heat shields of exhaust pipe and catalytic converter, auto parts & accessories under the frame, signboard in highway.
Industrial Instruments	Electric control cabinet, industrial refrigeration equipment, automatic vending machine

Packaging & Delivery

Packaging Detail:	Seaworthy Packing
Delivery Detail:	25days

Specifications

Galvalume steel coils
Min Yield Strength of 550MPA
Min/Regular Spangle
Zinc coating:60-600g/m2

Hot Dipped 55% Aluminum Zinc Alloy Coated Steel by the Hot-Dip Process

Hot Dip Galvalume steel coil EN 10327 JIS G3321, ASTM A792M 55% AL-ZN coated

Comparison

Item	GI	GF(Zn-5%Al)	GALVA-LUME(55%Al-45%Zn)	Al
Service Life	Fair	Fair	Good	Good
Electrochemical Protection	Good	Good	Good	N/A
Welding Performance	Good	Fair	Poor	Poor
Application with Wet Concrete	Good	Poor	Very Poor	Very Poor
Thermal Resistance	Poor	Poor	Good	Excellent

Specifications:

Standard	EN 10327	DX51D+AZ, DX52D+AZ, DX53D+AZ,
	EN 10326	SS250GD+AZ, SS350GD+AZ
	JIS G3321	SGLCC, SGLCD, SGLCDD, SGLC 400
	ASTM A792M	CS type C, CS type B, DS, SS255, SS345
Base Metal	Cold rolled steel coils SPCC, SPCD, SPCE, DC01, DC03, DC04, CS, DS, DDS, Q195, Q250, Q350
Thickness	0.22mm-2.0mm
Width	700mm-1300mm
Coil ID	508mm, 610mm
Zinc coating	60g/m2-180g/m2
Surface treating	chromium free passivation, chromium passivation, fingerprint resistant, oiled
Spangle types	regular spangle

Applications:

Architecture	Roofs and outside walls of civilian and industrial buildings, garage doors, fencings and window blinds
Appliances Industry	Outer clad sheets for washing machine, refrigerator, television, air conditioner and ventilation system, explosion-proof strip, solar water heater and appliance parts
Auto Industry	Muffler, heat shields of exhaust pipe and catalytic converter, auto parts & accessories under the frame, signboard in highway.
Industrial Instruments	Electric control cabinet, industrial refrigeration equipment, automatic vending machine

Q: How are steel coils inspected for uniformity using statistical analysis?: Various techniques and procedures can be employed to inspect steel coils for uniformity using statistical analysis. The primary goal is to guarantee that the coils meet the required specifications and exhibit consistent quality throughout. One prevalent inspection method involves obtaining a representative sample of steel coils from a batch or production run. These coils are selected randomly to ensure a fair representation of the entire batch. Statistical analysis is then conducted on this sample to assess the uniformity of the coils. The initial step entails measuring various physical properties of the coils, such as thickness, width, weight, and surface defects. These measurements are recorded for each coil in the sample. The collected data is subsequently subjected to statistical analysis, encompassing mean, standard deviation, and range calculations. By calculating the mean values of the measured properties, one can determine the average values for thickness, width, weight, etc. These mean values can be compared to the desired specifications to identify any deviations or inconsistencies. The standard deviation serves as an indicator of the variability or dispersion of the data, revealing the degree to which the coils adhere to the desired specifications. A smaller standard deviation denotes greater uniformity. Furthermore, range calculations can be executed to ascertain the difference between the maximum and minimum values of the measured properties within the sample. A smaller range implies a higher level of uniformity. Statistical analysis can also incorporate the use of control charts, such as X-bar and R-charts, to visually track the variation in the measured properties over time. These charts offer a graphical representation of the data, facilitating the identification of any trends or out-of-control conditions. In summary, statistical analysis provides a systematic approach to evaluating the uniformity of steel coils by providing objective measurements and statistical indicators. By analyzing the collected data, manufacturers can detect any deviations from the desired specifications and implement appropriate corrective measures to ensure consistent quality throughout the production process.

Q: How are steel coils used in the production of metal furniture?: Steel coils are used in the production of metal furniture as they are the primary raw material for manufacturing various components such as frames, legs, supports, and brackets. These coils are unrolled and passed through different machinery to shape and cut them into the desired sizes and shapes. The resulting pieces are then welded, joined, or assembled to create the different parts of the furniture. The strength and durability of steel make it an ideal material choice for metal furniture, ensuring sturdy and long-lasting products.

Q: What are the different methods of annealing steel coils?: There are several different methods of annealing steel coils, each with its own advantages and applications. The main methods include full annealing, process annealing, and spheroidize annealing. Full annealing is the most common method and involves heating the steel coils to a temperature above its critical point, typically between 800 and 900 degrees Celsius (1472 and 1652 degrees Fahrenheit), and then slowly cooling it down in a controlled manner. This process helps to refine the grain structure of the steel, making it softer and more ductile. Full annealing is often used to relieve internal stresses, improve machinability, and enhance the overall mechanical properties of the steel. Process annealing, also known as subcritical annealing or stress relief annealing, is a method used to reduce the hardness and brittleness of steel coils. It involves heating the coils to a temperature below its critical point, typically between 550 and 650 degrees Celsius (1022 and 1202 degrees Fahrenheit), and then slowly cooling them down. This process helps to relieve internal stresses that may have developed during previous manufacturing processes, such as cold working or welding. Process annealing is commonly used to improve the formability and toughness of steel coils. Spheroidize annealing is a specific type of annealing that is used to soften high carbon and alloy steels. It involves heating the steel coils to a temperature slightly below its critical point, typically between 650 and 700 degrees Celsius (1202 and 1292 degrees Fahrenheit), and then holding it at that temperature for a prolonged period of time. This allows the carbides within the steel to transform into rounded or spheroidal shapes, which increases the steel's machinability and ductility. Spheroidize annealing is often employed in the production of cutting tools, bearings, and other applications where improved machinability is desired. In addition to these main methods, there are also variations and specialized techniques that can be used for specific purposes, such as recrystallization annealing, intercritical annealing, and solution annealing. Each method has its own set of parameters and temperature ranges, and the choice of annealing method depends on factors such as the type of steel, desired mechanical properties, and the intended application of the steel coils.

Q: What are the challenges in coil recoiling?: Coil recoiling, also known as coil winding, can pose several challenges depending on the specific application and requirements. Some of the common challenges in coil recoiling include: 1. Precision and accuracy: Achieving precise and accurate winding is crucial for optimal coil performance. Maintaining consistent tension throughout the winding process, ensuring proper alignment, and controlling the speed are essential to avoid variations in the coil's electrical properties. 2. Wire management: Handling the wire during the recoiling process can be challenging. The wire may be delicate, prone to tangling, or have specific handling requirements, such as being magnetically or thermally sensitive. Proper wire management techniques, such as tension control, wire guide systems, and spooling mechanisms, need to be employed to prevent wire damage and ensure uniform winding. 3. Space constraints: In many applications, coils need to fit within specific space limitations. Designing and winding coils to fit compact spaces can be challenging, especially when considering the required number of turns, wire size, insulation, and any additional components or structures that may need to be incorporated. 4. Material selection: Selecting the appropriate wire and insulation material is crucial for coil performance and longevity. Factors such as electrical conductivity, thermal properties, mechanical strength, and chemical resistance need to be considered to ensure the coil can withstand the operating conditions and environmental factors it will be exposed to. 5. Heat dissipation: Coils often generate heat during operation, especially in high-power applications. Efficient heat dissipation is essential to prevent overheating and ensure the longevity of the coil. Designing the coil with proper ventilation, utilizing cooling mechanisms, or integrating heat sinks are some of the techniques used to address this challenge. 6. Quality control: Ensuring consistent quality in coil recoiling can be challenging due to factors such as variations in wire properties, operator skill, equipment calibration, and environmental conditions. Implementing robust quality control measures, such as conducting regular inspections, performing electrical tests, and monitoring process parameters, is necessary to maintain consistent coil performance. Overall, coil recoiling requires attention to detail, precision, and adherence to specific requirements to overcome the challenges and produce high-quality coils that meet the desired performance criteria.

Q: What are steel coils used for?: Steel coils are used for a variety of applications, including manufacturing automobiles, construction materials, appliances, and machinery. They are also used in the production of pipes, electrical appliances, and packaging materials.

Q: What are the different types of steel coil storage systems used during processing?: There are various types of steel coil storage systems used during processing, including coil racks, coil cradles, coil saddles, coil blocks, and coil pads. These systems provide a safe and organized way to store steel coils, ensuring easy access, efficient handling, and minimizing the risk of damage.

Q: i have a computer chair where the metal part that attachs the top part to the bottom with wheels has cracked around half of the assembly. my dad said it might be able to be repaired with jb weld. can jb weld fix it? how strong is jb weld? is it as strong as steel?: There is going to be too much stress at that mounting point for jb to work for long, unless you plan on never leaning more than 5 degrees from prostrate. Buy a new or used one. They are cheap if your not too picky. If you do plan on using jb, i highly recommend drilling multiple 1/8 or so holes on both sides of the crack, and smash some jb into those holes as you patch it. That will allow the jb to hold on much better.

Q: How are steel coils used in the production of automotive parts?: Steel coils are used in the production of automotive parts as they serve as the primary raw material for manufacturing various components such as body panels, chassis, and structural parts. These coils are processed through different techniques like cutting, stamping, and welding to shape and form the desired parts. The strength and durability of steel make it an ideal material for automotive applications, ensuring the safety and performance of vehicles.

Q: What are the different surface finishes of steel coils?: There are several different surface finishes of steel coils, including hot rolled, cold rolled, galvanized, and coated finishes. Hot rolled coils have a rough and textured surface, while cold rolled coils have a smoother and more refined surface. Galvanized coils are coated with a layer of zinc to protect against corrosion, while coated coils have additional layers of paint or other materials for aesthetic or functional purposes.

Q: I've heard different things bout them, though I do not know this. Oh, and if you know where you can buy some raw or get custom made stuff out of black steel please let me know it would be greatly appreciated. Oh and my friend told me there is a black steel that can be sharpened and silver will be underneath, is this also true? Thank you very much for answering ^^: My son is a bit and spur maker,I asked him about that and he told me that it is a tag they put on bits so a novice person will pay more for a bit that is not any better. Steel is Steel You should have a lot of bite with that bit because it is a pretty fine diameter. The black patina will wear off with use. BTW he just sent two silver bits to a big show in Reno Nev. I have not seen them or pictures of them but he has a $2,000 price tag on each of them. They must be real elaborate probably very fancy spade bits with highly engraved multicolored different metal butterflies on the ports.

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