Prime quality prepainted galvanized steel 695mm

Prime quality prepainted galvanized steel 695mm System 1

Prime quality prepainted galvanized steel 695mm System 2

Prime quality prepainted galvanized steel 695mm System 3

Prime quality prepainted galvanized steel 695mm System 4

Prime quality prepainted galvanized steel 695mm

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 10000 m.t./month

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Pre-paint galvanized steel coil
	ASTM A755M-03	EN10169:2006	JISG 3312-2012
Commercial quality	CS	DX51D+Z	CGCC
Structure steel	SS GRADE 230	S220GD+Z	CGC340
SS GRADE 255	S250GD+Z	CGC400
SS GRADE 275	S280GD+Z	CGC440
SS GRADE 340	S320GD+Z	CGC490
SS GRADE550	S350GD+Z	CGC570
	S550GD+Z

Outdoor	Roof, roof structure, surface sheet of balcony, frame of window, door of garage, rolled shutter door, booth, Persian blinds, cabana, etc
Indoor	Door, isolater, frame of door, light steel structure of house, home electronic appliances, ect.

Specifications

Commodity Name: Prepainted Galvanized Steel Coil

Standard: AISI, ASTM, DIN, GB, JIS

Grade: TDC52D+Z

Thickness 0.13-8.0mm

Width:600mm-1350mm

Zinc Coating:275g/m2

Polyester Coating Thickness:Top and Back coating thickness depend by Buyer Requirement.

Polyester Coating Type:2/2,1/2m,1/2.

Polyester Type: Polyester, silicone modified polyester, high durability polyester (HDP), polyvinylidene fluoride (PVDF)

Unit Roll Weight:5-20tons

Place of Origin Shanghai , China (Mainland)

Surface Treatment :Color Coated

Manufacture Progress:HRC-CRC-GALVANIZED-COLOR COATED

Application : Construction, electrical, transportation, steel plant, composite board plant, steel tile factory

Payment & Shipping Terms:T/T ,L/C, and FOB CHINA

Minimum Order Quantity: 25Tons

Packge Type: Moisture-proof paper inner,Steel outside,Bundle by steel rope.

Package in Container : Wood as a foot pad, wire rope reinforcement,PPGI steel coil tied together by steel rope.

Q:How are steel billets used in the manufacturing of defense equipment?: Steel billets are used in the manufacturing of defense equipment as they serve as the raw material for forging various components and parts. These billets are heated, shaped, and machined to create the necessary structures, such as gun barrels, armor plates, and gears, which are crucial for the production of durable and reliable defense equipment.

Q:Reasons and treatment methods of billet stripping in continuous casting: The main reason for the stripping is that the slab is not uniformly cooled in the mold, which results in uneven thickness of the shell, which results in uneven shrinkage, which leads to the unevenness of the billet. If the mould outlet, two cold area is uneven, the shell support is not full, it will make breaking-off intensified;

Q:What is the role of steel billets in the production of sheet metal?: Steel billets play a crucial role in the production of sheet metal as they are the primary raw material used to create thin, flat sheets of metal. These billets are heated, rolled, and shaped through a series of processes to transform them into sheet metal. The quality and composition of the billets directly impact the strength, durability, and overall characteristics of the final sheet metal product.

Q:How are steel billets cleaned before further processing?: Steel billets are cleaned before further processing through a series of steps to remove any impurities or contaminants. The cleaning process starts with the billets being subjected to a high-pressure water jet to remove any loose scale or dirt on the surface. This water jetting helps in removing most of the loose particles and provides a clean surface for further cleaning. After the initial water jetting, the billets are then immersed in an acid bath. The acid bath can be a mixture of different chemicals like hydrochloric acid, sulfuric acid, or a combination of both. The acid bath helps in removing any remaining scale or oxide layers on the surface of the billets. The acid reacts with these impurities, dissolving them and leaving a clean surface behind. Once the acid cleaning is complete, the billets are rinsed thoroughly with water to remove any traces of the acid. This rinsing process is crucial to ensure that no acid residue remains on the surface, as it could potentially affect the quality of the final product. After rinsing, the billets are then dried using hot air or in a furnace to remove any moisture. This drying process is necessary to prevent any rusting or corrosion from occurring on the surface of the billets. Overall, the cleaning of steel billets before further processing is a crucial step in ensuring the quality and integrity of the final product. It helps in removing impurities, scale, and oxide layers from the surface, providing a clean and uniform surface for subsequent processing operations.

Q:What are the different surface treatments applied to alloy steel billets?: Some of the different surface treatments applied to alloy steel billets include hot rolling, cold drawing, peeling, grinding, and polishing. These treatments are used to improve the surface finish, dimensional accuracy, and overall quality of the billets.

Q:How are steel billets labeled for identification purposes?: Steel billets are typically labeled for identification purposes through various methods such as stamping or tagging, where important information such as size, grade, heat number, and production date are marked directly on the billet or attached to it. This labeling allows for easy traceability and identification throughout the manufacturing and supply chain processes.

Q:What are the specifications for stainless steel billets used in the food industry?: The specifications for stainless steel billets used in the food industry typically include a specific grade of stainless steel, such as 304 or 316, which have high corrosion resistance. The billets need to be of a certain size and shape, based on the requirements of the food processing equipment. Additionally, they should meet certain quality standards, such as being free from impurities, having a smooth surface finish, and being certified food-grade material.

Q:How are steel billets used in the production of structural steel sections?: Steel billets are used as a primary raw material in the production of structural steel sections. These billets are heated and then passed through a series of roller mills to shape them into various structural profiles such as beams, channels, angles, and columns. The hot rolling process helps to improve the strength and durability of the steel, making it suitable for construction purposes.

Q:What are the different surface defects that can be found in steel billets?: There are several common surface defects that can be found in steel billets. These defects can occur during the manufacturing process or due to handling and transportation. Some of the different surface defects that can be found in steel billets include: 1. Scale: Scale is a type of surface oxidation that appears as a thin layer of iron oxide on the surface of the billet. It can occur during the heating and cooling process and can be removed through mechanical or chemical cleaning methods. 2. Cracks: Cracks can occur due to the improper cooling of the billet or excessive stress during handling. They can either be longitudinal or transverse, and their severity depends on the depth and length of the crack. Cracks can weaken the structural integrity of the billet and should be carefully inspected and repaired. 3. Inclusions: Inclusions are particles or impurities that are trapped within the steel during the manufacturing process. They can be non-metallic or metallic in nature and can affect the mechanical properties of the billet. Inclusions can be categorized as slag inclusions, gas porosity, or non-metallic inclusions like oxides and sulfides. 4. Decarburization: Decarburization is a surface defect that occurs due to the loss of carbon on the surface of the billet during the heating process. It can result in reduced hardness and strength of the steel in the affected area. Decarburization can be minimized by controlling the heating and cooling process and using protective atmospheres. 5. Laminations: Laminations are layers or sheets of non-metallic material that are trapped between the layers of steel during the manufacturing process. They can cause weak spots in the billet and can lead to failure under stress. Laminations can be detected through non-destructive testing methods and should be removed or repaired. 6. Pitting: Pitting is a localized corrosion phenomenon that appears as small pits or cavities on the surface of the billet. It can occur due to exposure to corrosive environments or improper storage conditions. Pitting can reduce the lifespan of the billet and should be treated to prevent further corrosion. It is important to note that these surface defects can vary in severity and impact the quality and performance of the steel billet. Regular inspection, testing, and quality control measures are necessary to identify and address these defects to ensure the integrity of the steel billet and the final products made from it.

Q:How are steel billets used in the production of steel cables?: Steel cables require steel billets as a key component for their production. These billets act as the primary material from which the cables are made. The billets undergo a range of processes to manufacture the steel cables. Initially, the steel billets are heated in a furnace to extremely high temperatures, which makes them more pliable and easier to manipulate. This technique is referred to as annealing. Afterward, the billets are passed through a sequence of rollers to shape them into the desired form and size required for the cables. Subsequently, the shaped billets are fed through a wire drawing machine, where they are pulled through a series of dies to decrease their diameter and increase their length. This results in the formation of wire rods that resemble wires. These wire rods then undergo further processing in a series of machines to eliminate any impurities or surface defects. They are subsequently coated with lubricants to minimize friction during subsequent processes. The wire rods are then transferred to a wire stranding machine, where multiple wires are twisted together to form strands. These strands are then combined through either twisting or braiding to create the final steel cables. The cables are once again coated with lubricants to enhance their durability and resistance against corrosion. In summary, steel billets are of utmost importance in the production of steel cables, serving as the initial material for the entire manufacturing process. Through a combination of heating, shaping, and drawing processes, the billets are transformed into wire rods, which are further processed to produce the strands and ultimately the final steel cables.

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