Hot-Dip Zinc-Coated Steel Coil Multiphase steels for cold forming CNBM

Hot-Dip Zinc-Coated Steel Coil Multiphase steels for cold forming CNBM System 1

Hot-Dip Zinc-Coated Steel Coil Multiphase steels for cold forming CNBM

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Loading Port:: Guangzhou

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t.

Supply Capability:: 3000 m.t./month

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Quick Details

Standard: ASTM
Grade: CS C
Type: Steel Coil
Surface Treatment: Galvanized
Application: Commercial steel
Width: 600-1534mm
Length: Coil

Packaging & Delivery

Packaging Details:	one coil per bundle, inner is the protecting humidity-proof wax paper. Medium is plastic film. Outer is sackcloth or compound paper packing. Coil to be laid on single type pallet (one pile per pallet)
Delivery Detail:	Depends on specification and order quanity.

Feature

(1) Regular spangle, minimized spangle and skin-pass.
(2) Chromate and Chromate-free passivation.
(3) Oiled and unoiled.

Drawing quality

(1) Type of zinc coating finish: regular spangle, minimized spangle and skin-pass.
(2) Types of surface qualities: as coated surface, improved surface and best quality surface.
(3) Surface treatment: chemically passivated, chromate-free passivation, phosphate, anti-finger print, phosphateand, self lubricating film, and untreated.
(4) Type of oiling: oiled and unoiled.
(5) Coil ID: 508/610mm.
(6) Grade: DX52D+Z; Application: drawing use.

Chemcial composition (cast analysis) of low carbon steels for cold forming

Specifications

Forming steel ASTM A653 Hot-Dip Zinc-Coated Steel Coil

Standard	Width	Zinc Coating	Length
ASTM A653	600-1534mm	Z90-Z1100	Coil

Hot-Dip Zinc-Coated Steel Coil Multiphase steels for cold forming CNBM

What is the application of Steel Coil?

There are two sides,one is out side: Workshop, agricultural warehouse, residential precast unit, corrugated roof, roller shutter door, rainwater drainage pipe, retailer booth;the other is inside: Door, doorcase, light steel roof structure, folding screen, elevator, stairway, vent gutter

Q: What are the main characteristics of galvanized steel coils?: The main characteristics of galvanized steel coils include their high corrosion resistance, durability, and ability to withstand extreme weather conditions. They are also known for their excellent formability, making them suitable for various applications in construction, automotive, and manufacturing industries. Additionally, galvanized steel coils have a smooth and shiny appearance due to the zinc coating, which provides aesthetic appeal along with enhanced protection against rust and other damages.

Q: What are the factors driving the growth of the steel coil industry?: There are several factors driving the growth of the steel coil industry. Firstly, the increasing demand for steel coils in various sectors such as automotive, construction, and manufacturing is a significant driver. Additionally, the expanding infrastructure projects and urbanization in emerging economies contribute to the growth of the industry. Moreover, technological advancements in steel manufacturing processes and the adoption of efficient production techniques also play a crucial role in driving the growth of the steel coil industry.

Q: What minerals are mixed to make steel?: It depends on the type of steel that you want. For example- A cold drawn carbon steel spring wire consists of Carbon,Silicon,Manganese,sulphur potassium. If you want to make an alloy steel you can also add chrome,vanadium , nickel etc. It depends on the combinations and percentages of each used.

Q: What are the different methods of testing steel coils for quality control?: Steel coils undergo various methods for quality control testing to ensure they meet the necessary specifications and standards. These methods encompass visual inspection, dimensional measurement, hardness testing, tensile strength testing, chemical analysis, coating thickness measurement, surface roughness measurement, ultrasonic testing, and magnetic particle inspection. Visual inspection is the most fundamental technique, involving a thorough examination of the coils for surface defects like scratches, dents, or irregularities. This method enables the identification of visible defects in the material. Dimensional measurement, on the other hand, utilizes tools such as calipers, micrometers, or laser measuring devices to evaluate the dimensions of the steel coils. The measurements are compared against specified tolerances to ensure they meet the required standards. To assess the resistance of the steel coils to indentation or penetration, hardness testing is performed. This examination helps evaluate the material's strength and durability. Common hardness testing methods include Rockwell, Brinell, and Vickers hardness tests. Tensile strength testing measures the maximum tensile stress a steel coil can endure before breaking or deforming. This test helps determine the material's strength, elasticity, and compliance with the required specifications. Chemical analysis is crucial in testing the composition of the steel coils to verify the presence of specific elements in the desired amounts. This ensures that the coils are made from the correct grade of steel and comply with the required chemical composition standards. In cases where the steel coils have a protective coating, it is vital to measure the thickness of the coating. Non-destructive testing methods like magnetic induction or eddy current testing are typically employed for this purpose. The coating thickness is compared against the specified requirements to ensure it provides adequate protection. Surface roughness testing evaluates the smoothness or roughness of the steel coil's surface using instruments like profilometers or roughness testers. This testing method guarantees that the coils meet the required surface finish standards. Ultrasonic testing utilizes high-frequency sound waves to detect internal defects like cracks, voids, or inclusions within the steel coils. This non-destructive testing method provides valuable information about the structural integrity of the coil. Magnetic particle inspection is employed to identify surface and near-surface defects in steel coils. By applying magnetic particles to the surface and detecting any magnetic leakage caused by defects using magnetic sensors, this technique effectively detects cracks and other surface abnormalities. By combining these testing methods, manufacturers ensure that the steel coils produced meet the necessary quality standards and are suitable for their intended applications.

Q: How are steel coils used in the production of metal staircases?: Steel coils are an essential component in the production of metal staircases. These coils, typically made of high-quality carbon steel, are first uncoiled and then go through a series of manufacturing processes to shape them into the required stair components. The first step in the production process involves cutting the steel coils into the desired lengths using specialized machinery. This allows for customized sizing to fit the specific staircase design. Once cut, the coils are then formed into various shapes and profiles, such as stringers, treads, and risers, through processes like bending, rolling, and stamping. The use of steel coils provides several advantages in the production of metal staircases. Firstly, steel is known for its strength and durability, making it an ideal material choice for staircases that need to withstand heavy loads and frequent use. The flexibility of steel coils allows for the creation of intricate and complex staircase designs, providing architects and designers with a wide range of options. Furthermore, steel coils can be coated or finished in various ways to enhance their appearance and protect them from corrosion. This can include painting, powder coating, or applying a protective layer such as galvanization. These finishes not only add aesthetic value to the metal staircases but also increase their longevity and resistance to wear and tear. In summary, steel coils are integral to the production of metal staircases as they provide the raw material that is shaped and formed into the necessary components. Their strength, flexibility, and ability to be finished in different ways make steel coils a versatile and reliable choice for manufacturing durable and visually appealing staircases.

Q: How are steel coils protected from chemical damage?: Steel coils are typically protected from chemical damage through various methods such as applying protective coatings or using barrier films. These protective measures act as a barrier between the steel surface and any potentially corrosive chemicals, preventing direct contact and minimizing the risk of chemical damage.

Q: What are the different methods of heat treatment for steel coils?: There are several methods of heat treatment for steel coils, including annealing, quenching, tempering, normalizing, and stress relieving. Each method involves heating the steel to a specific temperature and then cooling it in a controlled manner to achieve desired properties such as increased hardness, improved strength, or reduced residual stresses. These methods can be tailored based on the specific requirements of the steel and the intended application.

Q: How are steel coils straightened?: Steel coils are straightened using a process called leveling, which involves passing the coil through a series of rollers that apply pressure to gradually remove any bends or deformations in the steel.

Q: the difference between the original steel and mild steel from percentage of carbon: As the first answers suggest, the prolbem is that these terms are not specific, they are not scientifically or technically defined. This is like asking: what is the difference between a four door car and a sedan? There are hundreds of steel alloys ranging from Fe + a little C + very little else to alloy and tool steels with significant amounts of Cr, Ni, Si, and a number of other elements + C. And... for any given steel alloy, there are many different ways to heat treat it. A given piece of steel can be heat treated so hard and brittle that it could shatter like glass and then it could be heat treated to make it into a spring or heat treated to make it stretch like taffy. If you really want to understand steels, yes, there are lots of books on sword making (some written by people who actually understand steels) but... you need to study metallurgy. There are graduate level courses just on the metallurgy of steels. Of course to understand this course you need to understand a whole lot of fundamental metallurgy. All this stuff on steel makes perfect sense because, in terms of weight (tonage) produced, steel is, hands down, nothing else remotely comes close, the most important metal humans have.

Q: What is the standard diameter of steel coils?: Depending on the industry and application, the standard diameter of steel coils may differ. Generally, steel coils have a standard diameter that falls between 24 inches and 72 inches. This range enables convenient handling, transportation, and storage of the coils. It is worth mentioning that various industries may impose specific requirements for steel coil diameters, taking into account factors like equipment compatibility, production processes, and logistical considerations.

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