Hot-dip Zinc Coating Steel Building Roof Walls Steel Coil ASTM 615-009

Hot-dip Zinc Coating Steel Building Roof Walls Steel Coil ASTM 615-009 System 1

Hot-dip Zinc Coating Steel Building Roof Walls Steel Coil ASTM 615-009

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 9999 kg/m²

Supply Capability:: 11 kg/m²/month

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1.Structure of Hot-Dip Galvanized Steel Sheet Description：

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. Production of cold formed corrugated sheets and profiles for roofing, cladding, decking, tiles, sandwich walls, rainwater protective systems, air conditioning duct as well as electrical appliances and engineering.tungsten, carbon and so on. Basically, steel is an iron-carbon alloy that does not undergo eutectic reaction. In contrast,cast iron does undergo eutectic reaction, suddenly solidifying into solid phases at exactly the same temperature. Too little carbon content leaves (pure) iron quite soft, ductile, and weak. Carbon contents higher than those of steel make an alloy, commonly called pig iron, that is brittle (not malleable). While iron alloyed with carbon is called carbon steel, alloy steel is steel to which other alloying elements have been intentionally added to modify the characteristics of steel. Common alloying elements include: manganese, nickel, chromium, molybdenum, boron, titanium, vanadium, tungsten, cobalt, and niobium.^[1] Additional elements are also important in steel: phosphorus, sulfur, silicon, and traces of oxygen, nitrogen, and copper.

2.Main Features of the Hot-Dip Galvanized Steel Sheet：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent anticorrosive property

• High strength

• Good formability

• Good visual effect

3.Hot-Dip Galvanized Steel Sheet Images

Hot-dip Zinc Coating Steel Building Roof Walls Steel Coil ASTM 615-009

4.Hot-Dip Galvanized Steel Sheet Specification

Standard: ASTM, JIS,EN

Grade: CS, DX51D+Z,SGCC, SS 230~550,S220GD+Z~S550GD+Z, SGC340~SGC570

Thickness: 0.1mm~5mm

Width: max 2000mm

Coil weight:3-12 MT

Coil ID:508/610mm

Surface structure: zero spangle, regular spangle or minimum spangle

Surface treatment: Chromate treatment, Oiled/dry, skinpassed/non-skinpassed

Packing: Standard seaworthy export package

Technology test results:

Processability	Yield strength	Tensile strength	Elongation %	180°cold-bending
Common PV	-	270-500	-	d=0,intact,no zinc removal
Mechanical interlocking JY	-	270-500	-	d=0,intact,no zinc removal
Structure JG	>=240	>=370	>=18	d=0,intact,no zinc removal
Deep drawn SC	-	270-380	>=30	d=0,intact,no zinc removal
EDDQ SC	-	270-380	>=30	d=0,intact,no zinc removal

5.FAQ of Hot-Dip Galvanized Steel Sheet

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

1.How about your company？

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

2.How to guarantee the quality of the products？

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.

3. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-30 days, but the shipment will depend on the vessel situation.

Q: What are the specifications for steel strips used in the production of springs for firearms?: The steel strips used for springs in firearms vary depending on the specific requirements of the firearm manufacturer and the intended use of the springs. However, there are common specifications followed in the industry. 1. Material: High carbon or alloy steels are typically chosen for their strength, durability, and ability to withstand recoil forces generated by the firearm. 2. Hardness: The steel strips' hardness is specified in terms of Rockwell hardness (HRC) or Brinell hardness (HB) and is generally in the range of 45-55 HRC or 450-550 HB. This directly affects the spring's ability to resist deformation and maintain its shape under load. 3. Thickness: The required strength and flexibility of the spring determine the thickness of the steel strips. Lighter springs use thinner strips, while heavier springs use thicker strips. The thickness can range from a few hundredths of an inch to a few tenths of an inch, depending on the application. 4. Width: The overall size and shape of the spring are determined by the width of the steel strips. The width is chosen to match the firearm's design requirements and can range from a fraction of an inch to several inches. 5. Surface Finish: The surface finish of the steel strips is specified to ensure smooth operation and reduce friction between the spring and other components. Common surface finishes include polished, ground, or coated finishes. 6. Tensile Strength: The steel strips' ability to resist breaking under tension is measured by their tensile strength, usually specified in terms of ultimate tensile strength (UTS). It typically falls in the range of 130,000-200,000 psi (pounds per square inch). 7. Yield Strength: The ability of the steel strips to resist permanent deformation under load is measured by their yield strength. It is typically around 75-85% of the UTS. These specifications guarantee that the steel strips used for firearm springs are strong, durable, and capable of withstanding harsh operating conditions. They also ensure the reliable and consistent functioning of the springs, contributing to the overall performance and safety of the firearm.

Q: What are the different surface finishes available for decorative steel strips?: Some common surface finishes available for decorative steel strips include polished, brushed, embossed, and textured finishes.

Q: What are the common defects in steel strips?: Some common defects in steel strips include: 1. Surface defects: These can include scratches, pits, or dents on the surface of the steel strip. These defects can occur during manufacturing or handling processes and can affect the appearance and quality of the final product. 2. Edge defects: These defects occur along the edges of the steel strip and can include burrs, cracks, or irregularities. Edge defects can lead to difficulties in processing or may cause problems during subsequent manufacturing processes. 3. Thickness variations: Steel strips may have thickness variations along their length, which can affect the functionality and performance of the final product. These variations can be caused by issues with the rolling process, improper cooling, or uneven stress distribution during manufacturing. 4. Surface contamination: Steel strips can become contaminated with dirt, rust, or other foreign substances during storage or handling. Surface contamination can affect the appearance and corrosion resistance of the steel, making it less suitable for certain applications. 5. Coil set: Coil set refers to a curvature or distortion in the steel strip that occurs due to residual stresses from the rolling process. This defect can make it difficult to handle and process the steel strip and may lead to issues during subsequent manufacturing processes. 6. Weld defects: In some cases, steel strips may be welded together to form longer lengths. Weld defects can include incomplete penetration, cracks, or porosity, which can weaken the joint and lead to failure in the final product. 7. Decarburization: Decarburization refers to the loss of carbon from the surface of the steel strip during heat treatment or other manufacturing processes. This defect can reduce the hardness and strength of the steel and may affect its suitability for certain applications. It is important for manufacturers to carefully inspect and address these common defects to ensure the quality and performance of steel strips in various industries such as automotive, construction, and manufacturing.

Q: Can steel strips be used in the production of wind turbine components?: Yes, steel strips can be used in the production of wind turbine components. Steel strips are often used for manufacturing blades, tower structures, and other critical components due to their strength, durability, and ability to withstand harsh environmental conditions.

Q: What are the different surface peening methods for steel strips?: Some of the different surface peening methods for steel strips include shot peening, ultrasonic peening, and laser peening. Shot peening involves bombarding the surface of the steel strip with small spherical particles at high velocities to create compressive stresses and improve its strength and fatigue life. Ultrasonic peening uses high-frequency vibrations and a liquid medium to induce compressive stresses in the surface layer of the steel strip. Laser peening utilizes a high-energy laser beam to generate shock waves on the surface, resulting in improved resistance to fatigue and stress corrosion cracking. These methods are commonly employed to enhance the mechanical properties and durability of steel strips in various applications.

Q: What are the common tolerances for steel strips?: The common tolerances for steel strips vary depending on the specific application and industry standards. However, some commonly accepted tolerances for steel strips include thickness tolerances ranging from +/- 0.001 inches to +/- 0.010 inches, width tolerances ranging from +/- 0.005 inches to +/- 0.020 inches, and length tolerances ranging from +/- 0.010 inches to +/- 0.050 inches. These tolerances ensure that the steel strips meet the required specifications and can be used effectively in various manufacturing processes.

Q: How are steel strips annealed for improved properties?: Steel strips are annealed for improved properties by heating them to a specific temperature and then slowly cooling them. This process helps to relieve internal stresses, improve ductility, and refine the grain structure of the steel, resulting in enhanced strength and toughness.

Q: How are steel strips used in the production of metal signage?: Steel strips are an essential component in the production of metal signage. They play a crucial role in providing the structural support and durability required for these signs. Steel strips are typically used as the base material for metal signage. They are cut to the desired size and shape, forming the foundation upon which the sign is built. The strips are chosen for their strength and ability to withstand various environmental conditions, ensuring the longevity of the signage. In the manufacturing process, steel strips are often coated with a protective layer to prevent rusting and corrosion, further enhancing their durability. This coating can be in the form of paint, powder coating, or galvanization, depending on the specific requirements of the signage. Additionally, steel strips are used to create raised or embossed lettering on the signage. These strips are precisely shaped and molded to form the desired text or design. This technique adds a visually appealing and three-dimensional element to the sign, making it more eye-catching and professional. Moreover, steel strips are used for mounting the metal signage. They can be welded or attached with screws to walls, posts, or other structures, securely holding the sign in place. This ensures that the signage remains stable and visible, even in harsh weather conditions. Overall, steel strips are an integral part of the production process for metal signage. They provide the necessary strength, durability, and versatility required for creating visually appealing and long-lasting signs.

Q: What's the cutting edge of cold rolling strip?: Do you mean the cutting edge is the indication of the steel roll out of the factory? When the steel factory leaves the factory, the steel coil will have the burr and the cutting edge two kinds, the rough edge is the steel strip two, the edge is not neat. The trimming is the two sides of the steel band, and the width of the strip is certain when it is trimmed.