• GALVANISED STEEL COIL System 1
  • GALVANISED STEEL COIL System 2
GALVANISED STEEL COIL

GALVANISED STEEL COIL

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Hot Dipped Galvanized Steel Coil

Hot-dip galvanized steel coils are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial applications.

Product Description Of Hot Dipped Galvanized Steel Coil

Thickness

0.13mm-0.7mm

Width

600mm-1250mm

Zinc Coating

30-200g/m2

Internal Diameter

508mm/610mm

Coil Weight

3-12MT

Quality

commercial and structural quality

Surface Treatment

regular & minimum spangle, zero spangle, oiled & dry, chromated , non-skin pass , skin pass

Standard

JIS G 3302, ASTM A 653M, EN 10327

Steel Grade

SGCC, CS, FS, SS, LFQ, DX51D+Z , S280GD

Technical Data Of Hot Dipped Galvanized Steel Coil

Chemical Composition

C

Si

Mn

P

S

0.04-0.06%

0.01-0.03%

0.18-0.22%

0.014-0.016%

0.006%-0.009%

Yield Strength

(Mpa) 280-320

Tensile Strength

(Mpa) 340-390

Elongation

20%-30%

Out-of-square

not exceed 1% Flatness

Bow

15mmmax

Edge Wave

9mmmax

Centre Buckle

8mmmax

Bending At 180 Degree

No crack, purling and fraction

Application Of Hot Dipped Galvanized Steel Coil

It can be widely used in transportation, light industry, civil usage and farming. It is also the perfect building material in construction for making roofing tile, steel profiles for wall partition, T-bar, studs, fireproof door, air conditioning duct and home appliance.

Q:How are steel coils used in the manufacturing of automotive springs?
Steel coils are used in the manufacturing of automotive springs as they provide the necessary strength and flexibility required to support the weight of the vehicle and absorb shocks and vibrations. The steel coils are shaped and tempered to specific dimensions and then coiled to form the springs, which are then installed in various parts of the vehicle's suspension system to ensure smooth and stable ride quality.
Q:How are steel coils inspected for hardness using hardness testers?
To assess the strength and durability of steel coils, hardness testers are employed to examine their hardness. Hardness testers are specialized devices used to gauge a material's resistance to indentation or penetration. For steel coils, Rockwell or Brinell testers are commonly utilized. Both methods entail exerting a precise force onto the surface of the coil and measuring the depth of indentation or size of the impression made. In the case of Rockwell testing, a steel ball or diamond cone is pressed onto the coil's surface with a predetermined force. The depth of penetration is then measured and compared to a standardized scale in order to determine the hardness value. Different scales are employed based on the size and type of indenter in use. On the other hand, Brinell testing involves using a spherical indenter made of tungsten carbide or hardened steel. This indenter is pressed onto the coil's surface with a known force, and the resulting indentation is measured and compared to a standardized table to determine the hardness value. Both methods provide a quantitative measure of the steel coil's hardness, which serves as an indicator of its ability to resist deformation, wear, and cracking. The hardness test results are subsequently utilized to ensure that the steel meets specific quality standards or customer requirements. It is important to note that the inspection process may involve sampling, where representative sections of the steel coil are tested, or it may involve testing the entire coil, depending on the specific inspection requirements. Additionally, accurate and reliable results necessitate proper calibration and maintenance of the hardness testers.
Q:How are steel coils used in the production of aerospace parts?
Steel coils are used in the production of aerospace parts as they provide a reliable and durable material for manufacturing various components such as engine parts, structural beams, and landing gear. The coils are first processed and shaped into specific forms and sizes, then undergo further fabrication processes like cutting, welding, and machining to create the desired aerospace parts. The high strength and corrosion resistance of steel make it an ideal choice for ensuring the safety and performance of aerospace components.
Q:What are the different types of steel coil surface finish treatments?
There are several different types of steel coil surface finish treatments available, each serving a specific purpose and providing unique characteristics. Some common types include: 1. Hot Rolled: This is the most basic and common type of steel coil surface finish treatment. It involves heating the steel above its recrystallization temperature and then rolling it to achieve the desired thickness. This process results in a rough surface texture. 2. Cold Rolled: Unlike hot rolled, cold rolled steel coil undergoes a process where it is rolled at room temperature. This treatment produces a smoother surface finish with improved dimensional accuracy and tighter tolerances. 3. Galvanized: Galvanization is a process where a protective zinc coating is applied to the steel coil surface. This treatment not only enhances the appearance but also provides excellent corrosion resistance, making it suitable for outdoor applications. 4. Electro-galvanized: Similar to galvanized steel, electro-galvanized steel coil is coated with a zinc layer. However, the coating is applied through an electroplating process, resulting in a thinner and more controlled coating. 5. Pre-painted: Pre-painted steel coil surface finish treatment involves applying a layer of paint or other protective coating before the product is delivered to the customer. This treatment enhances the appearance and provides additional protection against corrosion. 6. Stainless Steel: Stainless steel coil surface finish treatment involves passivating the steel to remove any impurities or contaminants on the surface. This process improves the resistance to corrosion and gives the steel a clean and smooth appearance. 7. Embossed: Embossing is a surface finish treatment where a pattern or design is pressed into the steel coil surface. This treatment enhances the aesthetics of the product and can provide additional grip or texture depending on the specific design. 8. Brushed: Brushing is a treatment where a fine abrasive material is used to create a brushed pattern on the steel coil surface. This finish provides a unique texture and can help mask scratches or other imperfections. These are just some of the various types of steel coil surface finish treatments available. The choice of treatment depends on the specific requirements of the application, such as appearance, corrosion resistance, or functionality, and it is important to select the most appropriate treatment to ensure the desired outcome.
Q:How are steel coils inspected for surface finish?
Steel coils are inspected for surface finish through a visual examination process where trained inspectors assess the surface quality, texture, and any potential defects or imperfections. Additionally, specialized equipment such as surface roughness testers and optical profilometers may be used to measure the smoothness, waviness, and other surface parameters.
Q:How are steel coils inspected for surface quality?
Steel coils are inspected for surface quality through a meticulous process that involves various methods and technologies. The inspection is crucial as it ensures the coils meet the required standards and are free from any defects or imperfections. Here are the steps involved in inspecting steel coils for surface quality: 1. Visual Inspection: Initially, the coils undergo a visual inspection where trained personnel visually examine the entire surface for any visible defects such as scratches, dents, or any irregularities. This step helps identify any obvious issues that can be detected through visual observation. 2. Magnetic Particle Inspection: This non-destructive testing method involves applying a magnetic field to the steel coil's surface and then applying a magnetic particle solution. Any surface cracks or defects will cause the magnetic particles to cluster, making them visible under proper lighting. This technique is highly effective in detecting surface cracks and other surface abnormalities. 3. Eddy Current Testing: This method of inspection utilizes electromagnetic induction to identify surface defects. An eddy current probe is passed over the steel coil's surface, and any variations in the electrical current induced by the magnetic field will be detected. This technique is particularly useful for detecting surface cracks, pits, or corrosion on the coil's surface. 4. Ultrasonic Testing: Ultrasonic waves are used to inspect the steel coil's surface for any hidden defects such as subsurface cracks or inclusions. High-frequency sound waves are transmitted into the material, and any changes in the sound wave pattern that are reflected back indicate the presence of defects. Ultrasonic testing is highly reliable and can detect even the smallest defects within the steel coil. 5. Surface Roughness Measurement: The surface roughness of the steel coil is measured using specialized equipment. This measurement helps determine if the surface meets the required smoothness standards. The equipment scans the surface and provides detailed information about the roughness, enabling the inspector to ensure it falls within the acceptable range. Overall, steel coils undergo a comprehensive inspection process that combines visual examination with advanced testing methods such as magnetic particle inspection, eddy current testing, ultrasonic testing, and surface roughness measurement. These inspection techniques help identify and evaluate any potential defects or surface irregularities, ensuring that the steel coils meet the required surface quality standards.
Q:When I got my AR-15 I was told that I should get either get Brass or Steel Case ammo and stick with one or the other, I was wondering why? It surely wouldn't damage anything switching back and forth between the two would it? I got steel case ammo and I have stuck with It and probably will either way, I was just wanting to know it I ever wanted to get some Hornady's or somthing like that.
When I first got my ar i used 500rds of wolf steel but since i heard its bad I only use brass but I did shot 30rds of steel then 30rd brass one time at the range and I have not had any problems with it. I have put 700rds though it 500 steel.
Q:What are the different methods of surface treatment for steel coils?
There are several methods of surface treatment for steel coils, including hot-dip galvanizing, electro-galvanizing, chromating, and painting.
Q:What are the different types of steel coil storage methods?
There are several types of steel coil storage methods, including stacking coils directly on the floor, using racks or shelves, utilizing coil cradles, employing coil saddles, and implementing coil cars or trucks for transportation and storage.
Q:Which one would be stronger? And should damascus steel be tempered?Thank You
Damascus steel is not a good choice. Gun barrels were once made of Damascus but no longer. Mono steels have come a long way in the past 100 years along with methods of tempering. The skill required to create a functional, strong, and safe Damascus steel sword is rare and extremely labor intensive. A cheap Damascus sword should never be used for cutting anything but air. While you can buy a fine Damascus sword expect to pay a high price. Although any fine sword will cost quite a bit, $500 to thousands. Modern Mono steels now out perform even traditional folded blades. Folding was to change the carbon content and not primarily for strength. Lots of info on the web, make sure to check it for yourself and don't believe the romantic notion that antique blades out perform anything made today. That's just not true.

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