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:Can steel strips be used in the food industry?: Yes, steel strips can be used in the food industry. They are commonly used for various purposes such as food processing, packaging, and storage due to their durability, corrosion resistance, and ease of cleaning.

Q:What is the machinability of a steel strip?: The ease with which a steel strip can be cut, drilled, or shaped using different machining processes like milling, turning, or grinding is what we refer to as its machinability. This property is of utmost importance as it determines how efficiently and effectively manufacturing processes can be carried out. Several factors contribute to the machinability of a steel strip, including its alloy composition, microstructure, hardness, and surface finish. The presence of certain elements and impurities, such as sulfur, phosphorus, and lead, can either enhance or hinder its machinability. A steel strip with high machinability will display excellent chip formation, reduced cutting forces, and longer tool life. It enables higher cutting speeds and feeds, leading to faster production rates and improved productivity. Moreover, a highly machinable steel strip generates minimal heat and causes less wear on cutting tools, resulting in reduced costs associated with tooling and maintenance. Conversely, a steel strip with poor machinability presents challenges during machining operations. It may exhibit excessive tool wear, increased cutting forces, and inadequate chip formation. Consequently, it leads to slower cutting speeds, reduced productivity, and higher costs due to frequent tool changes and maintenance. To enhance the machinability of a steel strip, various techniques can be employed. These include alloying with elements that promote machinability, heat treatments to modify the microstructure, and surface treatments to improve surface finish and lubricity. These methods aim to optimize the steel's properties and make it better suited for specific machining applications. In conclusion, the machinability of a steel strip is a critical characteristic that significantly impacts the ease, efficiency, and cost-effectiveness of machining processes. It is influenced by factors like alloy composition, microstructure, hardness, and surface finish, and can be improved through various techniques and treatments.

Q:Are steel strips commonly used in the manufacturing of electrical appliances?: Yes, steel strips are commonly used in the manufacturing of electrical appliances. They are often used for structural support, shielding, and grounding purposes due to their strength, durability, and electrical conductivity properties.

Q:Can steel strips be used in the construction of bridges?: Yes, steel strips can be used in the construction of bridges. Steel strips are often used as reinforcement for concrete elements in bridge construction to enhance strength and durability. They provide additional support to the structure and can be used for various purposes, such as in the construction of bridge decks, beams, and columns.

Q:Are steel strips suitable for making musical instruments?: Musical instruments can indeed be made using steel strips. Steel, being a versatile material, offers numerous advantages in the craft of instrument making. One prevalent application of steel strips in musical instruments involves the creation of strings. In instruments like guitars, pianos, and violins, steel strings are widely utilized due to their ability to produce a bright and clear sound. Additionally, steel strips can be employed in constructing the body or resonating parts of certain instruments such as steel drums or steel guitars. The durability and strength of steel make it an exceptional choice for instruments that endure frequent use and tension. Moreover, steel strips can be molded and manipulated to produce various tones and sounds, rendering them an adaptable option for instrument makers. Nonetheless, it is important to acknowledge that the selection of materials for musical instruments relies on the specific requirements and desired characteristics of the instrument. Factors like weight, resonance, and tonal qualities may also influence the suitability of steel strips for a particular instrument.

Q:What is the difference between steel strip and strip steel?: In some less strict people, it is easy to confuse these two names, but also on the Internet with the same strip of steel.

Q:How are steel strips used in the manufacturing of marine equipment?: Steel strips are used in the manufacturing of marine equipment for various purposes such as structural components, reinforcement, and corrosion resistance. These strips are utilized to create sturdy frameworks, support structures, and hulls, ensuring the durability and strength required for marine applications. Additionally, steel strips can be coated or treated to enhance their resistance against saltwater corrosion, making them ideal for withstanding the harsh marine environment.

Q:How are steel strips used in the production of electrical connectors?: Steel strips are used in the production of electrical connectors to provide structural support and enhance conductivity. They are commonly used as a base material for connectors, allowing for secure attachment of wires and cables. Additionally, steel strips are often utilized for creating contact springs, which ensure reliable electrical contact between the connector and the connected device.

Q:What is the purpose of hardening and tempering steel strips?: The purpose of hardening and tempering steel strips is to enhance their mechanical properties and improve their overall performance in various applications. Hardening steel strips involves heating them to a specific temperature, known as the critical temperature, and then rapidly cooling them, typically by quenching them in oil, water, or air. This rapid cooling process transforms the steel's crystalline structure, resulting in a harder and stronger material. Hardened steel strips are highly resistant to deformation, wear, and abrasion, making them ideal for applications that require high strength and durability, such as cutting tools, springs, and machine components. However, hardened steel strips can become brittle and prone to cracking. This is where tempering comes into play. Tempering is a process that involves reheating the hardened steel strips to a lower temperature and then cooling them slowly. This controlled heating and cooling process allows for the adjustment of the steel's hardness and toughness, balancing its strength with its ability to withstand impacts and shocks. By hardening and tempering steel strips, manufacturers can tailor the material's properties to meet specific requirements. This enables the steel to exhibit a combination of hardness, strength, toughness, and flexibility that is suitable for a wide range of applications. Additionally, hardening and tempering can also improve the steel's resistance to corrosion and extend its service life.

Q:What are the factors that affect the wear resistance of steel strips?: There are several factors that can affect the wear resistance of steel strips. Firstly, the type and composition of the steel used in the strips play a significant role. Different alloys and heat treatments can be employed to enhance the wear resistance of steel. For instance, adding elements such as chromium, manganese, and tungsten can significantly improve the hardness and wear resistance of the steel strips. Secondly, the microstructure of the steel also affects its wear resistance. Steel strips with a fine and uniform grain structure tend to have better wear resistance compared to those with larger grains. This is because a fine grain structure provides more barriers to dislocations and helps to distribute the applied load more evenly, reducing wear. The hardness of the steel strips is another crucial factor. A higher hardness generally results in better wear resistance. Hardness can be achieved through various means, such as heat treatment processes like quenching and tempering or through the addition of alloying elements. The surface finish of the steel strips is also important. Smooth and polished surfaces tend to exhibit better wear resistance compared to rough or uneven surfaces. A smooth surface reduces friction and minimizes the chances of abrasive wear. Furthermore, the environmental conditions in which the steel strips operate can affect their wear resistance. Factors like temperature, humidity, and the presence of corrosive substances can accelerate wear. It is essential to consider these conditions when selecting the appropriate type of steel and applying protective coatings if necessary. Lastly, the load and speed at which the steel strips are subjected to also influence wear resistance. Higher loads and higher speeds generally result in increased wear. Therefore, it is crucial to consider the specific application requirements and select the steel strips that can withstand the expected loads and speeds to ensure optimal wear resistance.

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