SPCC cold rolled steel coil high quality

SPCC cold rolled steel coil high quality System 1

SPCC cold rolled steel coil high quality

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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SPCC cold rolled steel coil

Product Description :

Raw material	SGCC, SPCC, DC51D, SGHC,A653
Certificate	ISO9001.ISO14001.OHSAS18001
Thickness	0.16mm-0.7mm
Width	1250mm or under
Tolerance	thickness+/-0.01mm
Surface treatment	galvanized / galvalumized steel sheets
T Bending (top-coating) T Bending (back-coating)	≤3T ≤4T
Anti-MEK Wiping	≥100times
Zinc coating	40-180g
Type of coating structure	2/1 or 2/2 coating, or customized
Standard	GB/T12754-2006, GB/T9761-1988, GB/T9754-1988, GB/T6739-1996, HG/T3830-2006, HG/T3830-2006, GB/T1732-93, GB/T9286-1998, GB/T1771-1991, GB/T14522-93
Color	customized
Application	Building industry ,structural use, roofing, commercial use ,household appliance,industry facilities,office buildings

Our advantage :

1. Expertise:
10 years of manufacture: we know how to properly handle every step of production.
2. Competitive price:
We produce resin and paint by ourself, which greatly reduce our cost!
3. Accuracy:
We have a technician team of 40 people and a QC team of 30 poeple, ensure our products is exactly what you want.
4. Materials:
All color Steel Sheets are made of high-quality raw materials.
5.Certificate:
Our products are certified by TUV, ISO9001:2008,ISO14001:2004 etc.
6. Productivity:
We have three large-scale production line, to guarantee all your orders will be finished in earlist time

Q: What are the different methods of testing steel coils for quality control?: There are several methods of testing steel coils for quality control, including visual inspection, dimensional measurement, chemical analysis, mechanical testing, and non-destructive testing. Visual inspection involves examining the surface of the coil for any defects or imperfections. Dimensional measurement ensures that the coil meets the specified size and thickness requirements. Chemical analysis involves testing the composition of the steel to ensure it meets the required standards. Mechanical testing involves assessing the strength, hardness, and other mechanical properties of the steel. Non-destructive testing methods, such as ultrasound or magnetic particle inspection, are used to detect internal defects or flaws in the coil without damaging it.

Q: What are the different types of surface treatments for steel coils?: Steel coils can undergo various surface treatments to enhance their appearance, protect against corrosion, and improve durability. Common treatments include: 1. Hot-dip galvanizing: Immersing steel coils in molten zinc creates a protective layer, offering exceptional corrosion resistance and resilience in harsh environments. 2. Electro-galvanizing: Electroplating a thin zinc layer onto the steel surface provides good corrosion resistance and enhances aesthetics. 3. Organic coating: Coating steel coils with organic materials like paints, lacquers, or polymer films offers corrosion, abrasion, and UV protection, while providing a wide range of color options. 4. Phosphating: Treating the steel surface with a chemical process forms a layer of phosphate crystals, improving coating adhesion and corrosion resistance. 5. Chromating: Also called passivation, this treatment involves applying a chromate conversion coating, enhancing corrosion resistance and offering a decorative finish. 6. Oiling: Applying a thin layer of oil to steel coils during storage and transportation prevents corrosion and can be easily removed before further processing. 7. Pickling: Immersing steel coils in an acid solution removes impurities and scale, improving surface finish and preparing the steel for subsequent processing or coatings. 8. Tin plating: Electroplating a layer of tin onto steel coils provides excellent corrosion resistance, solderability, and aesthetic appeal. These treatments are just a few examples of the many available for steel coils. The choice depends on specific application requirements, including desired appearance, corrosion resistance, and environmental conditions.

Q: What is the size range of steel coils?: The size range of steel coils can vary depending on the specific application and industry. Generally, steel coils come in a wide range of sizes to accommodate different needs. The width of steel coils can range from as narrow as a few inches to as wide as several feet. Similarly, the thickness of steel coils can vary from very thin gauges, such as 0.005 inches, to thicker gauges exceeding 0.5 inches. The length of steel coils is typically determined by the manufacturing process, but it can be customized to meet specific requirements. Overall, the size range of steel coils is quite extensive, allowing for flexibility and adaptability in various industries, such as automotive, construction, and manufacturing.

Q: How are steel coils protected from chemical damage?: Steel coils are typically protected from chemical damage through various methods such as applying protective coatings or using barrier films. These protective measures act as a barrier between the steel surface and any potentially corrosive chemicals, preventing direct contact and minimizing the risk of chemical damage.

Q: How are steel coils processed and shaped for specific applications?: Steel coils are processed and shaped for specific applications through a systematic manufacturing process. Initially, the coils are uncoiled and flattened, followed by cleaning and coating to protect against corrosion. Then, they undergo a series of shaping processes such as rolling, bending, or cutting, depending on the desired application. These processes help transform the steel coils into various forms, including sheets, plates, or strips, which can be further fabricated into specific products like automobiles, appliances, or construction materials.

Q: In pounds per square inch what is the tensile strength of strong steel?: The term tensile strength refers to the amount of tensile (stretching) stress a material can withstand before breaking or failing. The ultimate tensile strength of a material is calculated by dividing the area of the material tested (the cross section) by the stress placed on the material, generally expressed in terms of pounds or tons per square inch of material. Tensile strength is an important measure of a material's ability to perform in an application, and the measurement is widely used when describing the properties of metals and alloys.

Q: How are steel coils inspected for thickness variations?: Steel coils are inspected for thickness variations using non-contact laser measurement systems. These systems use laser sensors to scan the surface of the coil and measure the distance between the sensor and the coil at multiple points. The data collected is then analyzed to identify any variations in thickness, allowing for quality control and ensuring compliance with desired specifications.

Q: How are steel coils inspected for width?: Steel coils are inspected for width using various methods to ensure they meet the required specifications. One common method is to use a caliper gauge, also known as a micrometer, which measures the width of the coil by physically contacting its edges. The operator places the caliper gauge at various points along the width of the coil and records the measurements. This method allows for precise measurements and helps identify any inconsistencies or deviations from the desired width. Another method used for inspecting steel coil width is laser measurement. Laser sensors are positioned on both sides of the coil, and they emit a laser beam that scans across the width of the coil. The sensors detect the distance between the coil's edges and provide accurate width measurements. This non-contact method is highly efficient and can quickly inspect the width of the coil without any physical contact or potential damage. In addition to these methods, some advanced systems use computer vision technology for width inspection. Cameras and image processing software are employed to capture images of the coil's edges. The software analyzes these images and calculates the width based on the detected edges. This method allows for high-speed inspections and can detect any irregularities in the width of the coil. Overall, steel coils are inspected for width using a combination of physical gauges, laser sensors, and computer vision technology. These methods ensure that the coils meet the required width specifications and help maintain quality control in the steel manufacturing process.

Q: Can steel coils be recoiled?: Yes, steel coils can be recoiled. Recoiling involves rewinding a steel coil into a more compact shape, typically to improve storage or transportation efficiency. This process is commonly used in industries such as manufacturing, construction, and transportation.