What are the Quality Certifications for Stainless Steel Seamless Pipes?

Jane

Seamless pipe is a long steel strip without seams around it. It can be classified according to production method, shape, material and purpose. Common ones include hot-rolled pipe, cold-rolled pipe, cold-drawn pipe, extruded pipe, etc. Stainless steel seamless pipe is a special type of seamless pipe. There are many kinds of quality certifications for stainless steel seamless pipes. Depending on the application field, country and region, the required certifications are also different. These certifications are designed to ensure that the products comply with relevant standards and specifications and guarantee their quality, safety and reliability.

International Certification of stainless steel seamless pipes

1. ISO 9001 Quality Management System Certification:

This is the most common quality management system certification, which proves that the company has established a quality management system that meets international standards and can stably provide products that meet customer and applicable regulatory requirements. Almost all regular stainless steel seamless pipe manufacturers will pass this certification.

2. PED 2014/68/EU EU Pressure Equipment Directive

This directive applies to pressure equipment sold in the EU market, including stainless steel seamless pipes. Obtaining PED certification means that the product complies with EU safety requirements for pressure equipment.

3. CPR Construction Products Regulations

This regulation applies to construction products sold in the EU market, including stainless steel seamless pipes used in building structures. Obtaining CPR certification means that the product meets the EU’s basic requirements for construction products.

4. EAC Customs Union CU-TR Certification

This certification applies to products sold in Customs Union countries such as Russia, Belarus, and Kazakhstan. Stainless steel seamless pipes exported to these countries require EAC certification.

5. Classification Society Certification

If the stainless steel seamless pipe is used in marine engineering fields such as shipbuilding, it is necessary to obtain the corresponding classification society certification, such as:

ABS American Bureau of Shipping

DNV-GL Det Norske Veritas

LR Lloyd’s Register

BV Bureau Veritas

KR Korean Register

CCS China Classification Society

6. Norsok M-650 Norwegian petroleum industry standard:

This standard is the technical standard of the Norwegian petroleum industry and has strict requirements for materials and equipment used in the oil and gas industry, including stainless steel seamless pipes.

National and regional certifications for stainless steel seamless pipes

1. National Standard (GB/T)

GB/T 14976-2012 “Stainless Steel Seamless Pipes for Fluid Transportation”: specifies the classification, code, size, appearance, technical requirements, test methods, inspection rules, packaging, marking and quality certification of stainless steel seamless pipes.

GB/T 40317-2021 “Stainless Steel Seamless Pipes for Oxygen Pipelines”: Quality standard for stainless steel seamless pipes used in oxygen pipelines.

GB/T 3089-2008 “Stainless Steel Ultra-Thin Wall Seamless Pipes”: Applicable to the quality certification of ultra-thin wall stainless steel seamless pipes.

GB/T 3090-2000 “Stainless Steel Small Diameter Seamless Pipes”: Quality certification for small diameter stainless steel seamless pipes.

2. China Special Equipment Manufacturing License

In China, the production of stainless steel seamless pipes for pressure piping requires a special equipment manufacturing license.

3. Stainless steel seamless pipe industry standard (YB/T)

YB/T 4395-2014 “Steel – Determination of molybdenum, niobium and tungsten content – Inductively coupled plasma atomic emission spectrometry”: involves the determination method of specific element content in stainless steel seamless pipes.

YB/T 4173-2008 “Forged and bored thick-walled seamless steel pipes for high temperature use”: quality certification for forged and bored thick-walled seamless steel pipes for high temperature use.

Certification in other countries and regions

Some countries and regions also have their own certification systems, such as Japan’s JIS certification and Germany’s DIN certification.

How to identify certification?

Certificates: Manufacturers usually provide relevant certification certificates, such as ISO 9001 certificates, PED certificates, etc. You can ask suppliers for these certificates for verification.

Product identification: Some certifications will be marked on the product, such as CE mark, EAC mark, etc.

Official website query: You can query relevant certification information through the official website of the certification body.

Importance of certification

Obtaining relevant quality certification is very important for both manufacturers and users of stainless steel seamless pipes:

For manufacturers: Obtaining certification can improve the market competitiveness of products, enhance customer trust, and expand domestic and foreign markets.

For users: Certification is an important basis for selecting high-quality stainless steel seamless pipes, which can reduce procurement risks and ensure project quality and safety.

Conclusion

When choosing  stainless steel seamless pipes, in addition to paying attention to factors such as material, specification, and price, you also need to pay attention to whether it has obtained relevant quality certification. According to the specific use field and export destination, choose products with corresponding certification to ensure product quality and compliance with regulatory requirements. If you have any questions about the certification, you can consult the supplier or the relevant certification body. It is recommended that when selecting suppliers, priority should be given to companies with a complete quality management and production certification system, such as companies with ISO9001 quality management system certification, various national classification society certifications, EU CE certification, etc. The product quality of these companies is more guaranteed. When choosing seamless steel pipes, you must be discerning and choose Permanent Steel Manufacturing Co., Ltd., which has excellent reputation and strong strength.

Read more: Application of Stainless Steel Seamless Pipes in the Chemical Industry