Identifying fake seamless pipes

Identifying fake seamless pipes

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Identifying fake seamless pipes can be challenging, but there are certain indicators you can look for to determine their authenticity. Here are some steps that our BNG team?providing to help identify fake seamless pipes:


  • Purchase from reputable suppliers: BNG starts by buying seamless pipes from well-established and reputable suppliers. They are more likely to provide genuine products with proper certifications and documentation.
  • Verify supplier credentials:?We’re checking the credentials of the supplier, such as their business registration, certifications, and customer reviews. A legitimate supplier will have a good track record and positive feedback from customers.
  • Examine the pipe markings:?Authentic seamless pipes usually have clear and accurate markings on their surfaces. We closely cooperate with our suppliers to look for information such as the manufacturer's name or logo, material grade, pipe size, wall thickness, and relevant standards (e.g., ASTM, EN, and CAS). Inconsistent or unclear markings can be a sign of counterfeit pipes.
  • Check documentation and certifications:?Genuine seamless pipes typically come with supporting documentation and certifications. Request the supplier to provide test certificates, material composition analysis reports, and compliance documentation with relevant industry standards. Counterfeit products often lack proper documentation or provide forged certificates.


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  • Inspect the surface quality:?Examine the surface of the seamless pipe for any irregularities or inconsistencies. Genuine seamless pipes have a smooth and uniform finish without visible welding marks or defects. Counterfeit pipes may exhibit rough surfaces, uneven weld lines, or imperfections.

Why fake thick-walled smls steel pipes are prone to scars on the surface?

1.?Fake thick-walled seamless steel pipes are uneven in material and have many impurities.

2. The guide and guard equipment of the counterfeit steel manufacturers is simple and easy to stick to the steel. These impurities will easily cause scars after biting the roll.

  • Confirm the weight and dimensions:?Verify the weight and dimensions of the pipe against the specified values. Fake seamless pipes might have variations in weight or dimensions due to lower-quality manufacturing processes. However, due to the poor material, the end face of the cutting head often has the phenomenon of meat loss, that is, unevenness and no Metallic lustre. Moreover, because the products of fake and inferior material manufacturers have fewer cuts, big ears will appear at the beginning and end.
  • Perform non-destructive testing (NDT):?In urgent cases or if our customer has this requirement, non-destructive testing methods, such as ultrasonic testing or magnetic particle inspection, can help detect any internal defects or inconsistencies within the pipe. Consult with a qualified inspector or an independent testing laboratory to perform these tests if necessary.
  • Seek expert opinion: If our customers have doubts about the authenticity of the seamless pipes, BNG can consider consulting with industry experts or independent third-party inspectors, such as EN 10204 - 3.2. They can provide professional assessments and help identify any potential counterfeit products.


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Remember that these guidelines are not foolproof, and counterfeiters are continually improving their techniques. It's always recommended to rely on trusted suppliers and experts to ensure the authenticity and quality of the seamless pipes you are purchasing.


For more information, please visit www.bngflgroup.com, or contact us at [email protected]

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