To check the originality of an Essar PPGI (Pre-Painted Galvanized Iron) coated coil sheet, you can follow these steps:

1. Manufacturer’s Markings and Labels

Brand Name

• Location: Look for the brand name “Essar Steel” stamped or printed on the coil. This is usually found on the outer wrapping or directly on the coil.
• Authenticity Features: Genuine products may have holographic stickers or unique serial numbers.

Batch Number

• Traceability: The batch number can be cross-verified with Essar Steel to trace the production details.
• Format: Typically, batch numbers include information about the production date, line, and sometimes even the shift.

Labels

• Details to Check: Verify that labels include product specifications, batch number, manufacturer’s details, and standards compliance.

2. Documentation

Certificate of Origin

• Supplier Verification: Ensure the certificate is provided by the supplier and is verifiable with Essar Steel.
• Details: Should include the country of origin, manufacturing date, and other relevant details.

Mill Test Certificate (MTC)

• Content: This certificate includes the chemical and mechanical properties of the coil, coating details, and compliance with specified standards.
• Verification: Cross-check the details with Essar Steel if needed.

Invoice and Purchase Order

• Matching Specifications: Ensure that all details such as product dimensions, coating type, and quantity match your order.
• Supplier Information: Verify the supplier’s credentials and contact details.

3. Physical Inspection

Coating Quality

• Uniformity: Look for a consistent and even application of paint. There should be no signs of patchiness, runs, or drips.
• Thickness: Use a coating thickness gauge to measure the paint thickness. It should be within the specified range for PPGI coils.

Surface Finish

• Smoothness: The surface should be smooth and free from irregularities.
• Defects: Check for any signs of corrosion, dents, scratches, or other surface defects.

Edge Condition

• Inspection: Edges should be clean and well-finished without any burrs or rust.

4. Technical Specifications

Thickness and Dimensions

• Measurement Tools: Use calipers or micrometers to measure the thickness. Ensure it matches the specifications provided.
• Tolerance: Check against the standard tolerances allowed for the product.

Color Consistency

• Visual Inspection: Compare the color across different sections of the coil. Any significant variation might indicate quality issues or counterfeit products.

5. Supplier Verification

Authorized Dealer

• Essar Steel Contact: Contact Essar Steel to get a list of authorized dealers.
• Verification: Ensure you are dealing with an authorized and reputable dealer.

Reputation

• Reviews and Ratings: Check for online reviews, ratings, and testimonials from other customers.

6. Testing

Lab Testing

• Professional Services: Send a sample to a certified lab that can test for chemical composition, mechanical properties, and coating thickness.
• Report Analysis: Compare the lab results with the specifications provided by Essar Steel.

Adhesion Test

• Simple Tests: Conduct a peel test where a strip of adhesive tape is applied to the painted surface and then pulled off. The paint should not come off with the tape.
• Professional Testing: For more detailed testing, specialized equipment can measure adhesion strength.

7. Contact Manufacturer

Verification Request

• Direct Contact: Reach out to Essar Steel’s customer service or quality assurance department with the batch number and other product details.
• Confirmation: They can confirm the authenticity and provide additional information about the product.

Summary

By incorporating thorough documentation checks, physical inspections, supplier verification, and direct communication with the manufacturer, you can confidently determine the originality of an Essar PPGI coated coil sheet.