COATED GALVANIZED STEEL Prepainted galvanized steel coil PPGI PPGL STOCK
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 10000 m.t./month
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PREPAINTED GALVANIZED STEEL COILS
ZINC COATING:60g/m2 (-/+10g/m2)
COLOR: ACCORDING TO COLOR SAMPLE.
TOP COATING:5+13 MICRON, BACK COATING:5-7 MICRON;
COIL WEIGHT:3-5 ton
STANDARD:JIS G 3312
STEEL GRADE:CGCC
COIL ID:508mm
1.THICKNESS:-0.02/+0.02mm; WIDTH:0/5mm.ZINC COATING：+/-10g/m2;
2.TOLERANCE:+/-10% WITH QUANTITIES AND AMOUNT.
3.PACKAGE：FULL PACKED WITH ANTI-DAMP PAPER,IRON SHEET OUTSIDE.
4.SHIPMENT: GOODS WILL BE DELIVERED WITHIN 20 DAYS AFTER RECEIVING ADVANCE PAYMENT
5.TERMS OF PAYMENT: 20% TT IN ADVANCE,80% AGAINST COPY OF B/L. OR LC AT SIGHT
6.THIRD PARTY INSPECTION: SGS, INTERTEK,COTECNA ,BV. ANY EXPENSE ON INSPECTION(SUCH AS SGS,INTERTEK...) SHALL BE ON BUYER'S ACCOUNT.
- Q: What are the safety precautions when working with steel coils?
- Some safety precautions when working with steel coils include wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toed boots, ensuring proper lifting techniques to prevent musculoskeletal injuries, maintaining a clear and organized work area to avoid tripping hazards, using proper machinery and equipment to handle and transport the coils safely, and following established safety protocols and procedures. It is also important to receive proper training and supervision to handle steel coils effectively and minimize potential risks.
- Q: why do you need to heat steel when hardening, molecules etc etc
- Halps is off base a little. The reason heat is involved in hardening of steels depends, a little bit, on how you are doing the hardening. If you are hardening by work hardening, you do not have to heat it at all. If you are barbarizing (case hardening), the temperature is raised to increase the diffusion rate of carbon into the steel, higher C content - higher hardness. If you are Thur hardening, you have to heat the steel to the austenitizing temperature (so the structure transforms to FCC crystals with higher solubility for C) and then quench it (cool it rapidly enough to freeze the C atoms in the martensite crystal structure). If you slow cool, the steel could end up softer than it started. All of these processes involve atomic level things. If you want to understand them on the atomic level, you need to study physical metallurgy of steels. It is a subject onto itself and is really quite fascinating if you are interested.
- Q: How do steel coils contribute to the construction sector?
- Steel coils contribute to the construction sector in several ways. Firstly, they are used to manufacture structural components such as beams, columns, and steel frames, which provide strength and support to buildings and infrastructure. Secondly, steel coils are used to produce reinforcement bars that are embedded in concrete, enhancing its tensile strength and durability. Additionally, steel coils are utilized in the construction of bridges, pipelines, and other large-scale projects that require robust and long-lasting materials. Overall, steel coils play a vital role in the construction sector by providing the necessary materials for sturdy and resilient structures.
- Q: i cant find this stuff about steel:conductivitystrengthcorrosion resistancecommon applicationsif you know of any interesting facts, i could use those 2!thanx!
- The strength and corrosion resistance depends on the mix. Pure steel is pure iron plus 6% pure carbon. It is the carbon molecules that give it a tough crystallized strength. Pure iron is wrought iron and you can bend that with your hands. Strength also depends on the shape of the beam the most common steel beam is the W flange more commonly called the I beam. That is because the strength of the ‘I’ beam is just a little bit less than if the entire I beam was filled in; however the weight and material savings is huge. Steel itself has no corrosion resistance and is often given a zinc coating just to resist oxidization. Manganese, vanadium and tungsten are just some of the other elements added to improve the steel.
- Q: What are the challenges in coil leveling for coated steel?
- To achieve high-quality, flat, and smooth coils, several challenges must be addressed in the process of coil leveling for coated steel. The first challenge lies in the potential damage to the coating during leveling. Coated steel coils are typically covered with materials like zinc or paint, which are susceptible to scratching or marring if mishandled. The leveling process involves passing the coil through a series of rolls, which can cause friction, abrasion, or other mechanical harm to the coating. Therefore, it is crucial to meticulously control the speed, pressure, and alignment of the rolls to minimize coating damage. The second challenge stems from the variations in thickness across the coil. Coated steel coils often exhibit thickness discrepancies due to inherent material properties or production methods. These variations can lead to uneven leveling, resulting in coils with waviness or inconsistent flatness. Achieving uniform leveling across the entire coil surface is vital to ensure consistent quality and appearance of the final product. Another challenge in coil leveling for coated steel is the possibility of shape distortion. The coating processes can introduce stresses into the steel, causing the coil to warp or distort during leveling. This distortion can lead to coils with irregular edges or uneven flatness. Proper control of leveling process parameters, such as the number of passes and applied tension, is necessary to minimize shape distortion. Furthermore, the coil leveling process can generate internal stresses in the steel, especially in cold-rolled or heat-treated coated steels. These internal stresses can result in coil spring-back, where the coil attempts to revert to its original shape after leveling. Spring-back can cause coils with undesired curvature or inconsistent flatness. Effective strategies, such as stress relief annealing or employing counteracting leveling techniques, are essential to minimize spring-back and achieve the desired flatness. Lastly, handling and storing coated steel coils pose challenges in maintaining the quality of the leveled coils. Coated steel coils are sensitive to environmental conditions, such as humidity, temperature, and exposure to corrosive substances. Proper storage and handling practices are crucial to prevent coating damage, rust, or other forms of deterioration that can occur during transportation or storage. In conclusion, the challenges in coil leveling for coated steel involve minimizing coating damage, addressing thickness variation, controlling shape distortion and spring-back, and ensuring proper handling and storage. Overcoming these challenges necessitates precise control of process parameters, the application of suitable leveling techniques, and strict adherence to quality control measures throughout the entire process.
- Q: How are steel coils used in the manufacturing of agricultural sprayers?
- Steel coils are used in the manufacturing of agricultural sprayers as they are shaped and formed into the structure of the sprayer, providing strength, durability, and stability. The coils are often used as the main frame or structural components of the sprayers, ensuring that they can withstand the harsh conditions and heavy loads involved in agricultural applications.
- Q: How are steel coils inspected for surface cleanliness using cleanliness tests?
- To ensure that steel coils meet required quality standards, cleanliness tests are conducted to inspect their surface cleanliness. These tests utilize various methods to assess the presence of contaminants such as dirt, oil, grease, rust, or scale on the coils' surface. One commonly utilized cleanliness test involves visual inspection, where trained inspectors visually examine the coils' surface for visible contaminants. They search for signs of staining, discoloration, or foreign substances that could impact the steel's quality. Another cleanliness test involves wiping the surface of the steel coil with a clean cloth or wipe. The cloth is subsequently analyzed for contaminants using techniques like gravimetric analysis or solvent extraction. The amount of contaminants collected on the cloth provides an indication of the steel surface's cleanliness. Surface roughness tests are also performed to assess cleanliness. A roughness gauge is used to indirectly measure the presence of contaminants by measuring the roughness of the steel surface. If the surface roughness measurements surpass specified limits, it suggests the presence of contaminants that affect the steel's cleanliness. In addition to these tests, techniques like wetting tension measurement, water break test, or contact angle measurements may be employed as part of cleanliness tests. These techniques evaluate the steel's surface energy and wetting properties, which can be influenced by the presence of contaminants. By conducting cleanliness tests, thorough inspection of steel coils for surface cleanliness is achieved. These tests aid in identifying potential contaminants that could compromise the steel's quality and performance. By ensuring the surface cleanliness of steel coils, manufacturers can deliver high-quality products that meet the stringent requirements of diverse industries.
- Q: I am doing a experiment on mild steel soaked in sodium chlorideanyone can enlighten me about the effect of the sodium chloride in engineering term ?The mild steel specimen which I soaked in the sodium chloride has orange rust on it
- The mild steel contains a lot of Iron. The NaCl solution quickly attacks the iron content and forms rust. Over time, the solution may also cause what is called 'Chloride Cracking' of the steel. Pitting corrosion of stainless steel due to chlorides would certainly produce a rust-colored product. Passivation can be used to maintain a good corrosion resistant surface of stainless steel process vessel. There are many commercial products for this purpose. In the pharmaceutical industry, this process is often called derouging, that is to remove the buildup of iron oxides on the stainless steel process surfaces
- Q: How are steel coils used in the manufacturing of storage racks?
- Steel coils are used in the manufacturing of storage racks by being cut and formed into structural components, such as beams and columns, which provide the necessary strength and durability to support the weight of stored items. These coils are processed through various machines and techniques, including bending, welding, and painting, to create the final storage rack structures.
- Q: How are steel coils stored to prevent damage?
- Steel coils are typically stored in a way that minimizes the risk of damage. They are usually placed on pallets or in racks to keep them off the ground and provide stability. Additionally, they are often secured with bands or straps to prevent movement during storage and transportation. Proper ventilation is also important to prevent moisture buildup, which can cause corrosion. By implementing these measures, the risk of damage to steel coils is significantly reduced.
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COATED GALVANIZED STEEL Prepainted galvanized steel coil PPGI PPGL STOCK
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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