TR CU 032 Stainless Steel Seamless Pipes EAC Certification
Regulatory Overview
The Customs Union Technical Regulation on the Safety of Pressure Equipment (TR CU 032/2013) was adopted by the Eurasian Economic Commission on 18 November 2011 and entered into force on 1 February 2014. This regulation applies to equipment operating under pressure within the territory of the Eurasian Economic Union (EAEU). Its purpose is to harmonise safety standards for pressure equipment across EAEU member states (such as Russia, Kazakhstan, Belarus, etc.), ensure product safety and quality within the region, promote regional trade, and eliminate trade barriers.

Scope of Application  
If stainless steel seamless pipes are used in pressure equipment and meet the conditions of a maximum allowable working pressure exceeding 0.05 MPa and a nominal diameter greater than 25 mm, they are subject to mandatory certification under the TR CU 032 regulation. For example, stainless steel seamless pipes used for transporting gases, steam, and liquids, provided they meet the aforementioned pressure and diameter requirements, must undergo certification. If they are not used in pressure-bearing environments or do not meet the relevant pressure and diameter requirements, they are not subject to certification under this regulation.

Certification Types  
EAC Declaration of Conformity (DOC)  
For stainless steel seamless pipes classified as Category 1-2, an EAC Declaration of Conformity can be obtained. This certification type allows companies to self-declare product compliance with regulatory requirements, supported by laboratory testing. Regarding validity periods, single-batch certifications are valid indefinitely; for continuous production, the validity period shall not exceed five years.

EAC Certificate of Conformity (COC)
When stainless steel seamless steel pipes are classified as Category 3–4, an EAC Certificate of Conformity must be applied for. This certification form is more stringent, requiring review by a notified body, as well as factory inspections and annual supervision. The certificate’s validity period shall not exceed five years.

Certification Process
Equipment Classification
Determine the category (Categories 1–4) of the stainless steel seamless pipe based on Tables 1–9 in Appendix 1 of the regulations. For example, a stainless steel seamless pipe with specifications of DN300 and PN10MPa may be classified as Category 3.

Document Preparation
Technical Documents:
Safety Risk Assessment Report: Assess the various risks that the stainless steel seamless pipe may face during use.
Equipment Technical Passport, containing detailed technical parameters and production process information of the steel pipe.  
Operating Manual, written in Russian, which should include emergency response procedures to assist users in properly addressing issues during use.  
Project Documents, such as usage instructions related to specific projects.  
Strength Calculations and Safety Device Capacity Calculation Results (if calculations were conducted according to the project), to ensure the safety of the steel pipe under pressure conditions.
Technical procedures and process information, including material usage data, welding materials, welding methods and parameters, heat treatment modes, non-destructive testing methods and results, etc., reflecting the production process and quality control of the steel pipes.  
Manufacturer's equipment test reports, confirming that the steel pipes have undergone all necessary tests during production.  
Other documents:  
Documents confirming the characteristics of materials and components, such as chemical composition and physical properties of materials.
Conformity certificates related to materials and components, proving that the materials and components used comply with relevant standards.  
The list of standards applied in equipment manufacturing as specified in Section 5 of this technical specification, clearly stating the standards followed during production.  
Application Submission  
Stainless steel seamless steel pipe manufacturers or relevant traders submit the prepared documents to the certification body to apply for EAC certification. When submitting the application, ensure the completeness and accuracy of the documents to facilitate the certification body's subsequent work.

Audit and Inspection
Document Review: The certification body conducts a detailed review of the submitted documents to determine compliance with regulatory requirements. The review covers document format, content completeness, and data accuracy, among other aspects.
On-Site Inspection: For stainless steel seamless pipes requiring EAC Certificate of Conformity (COC) certification, the certification body will dispatch personnel to the production facility for an on-site inspection. The inspection covers production processes, quality management systems, and other aspects to verify compliance with regulatory standards. For example, the inspection may verify whether production equipment is operating normally, whether the production environment meets requirements, and whether the quality management system is effectively implemented.
Testing and Experimentation  
In accordance with regulatory requirements, necessary testing and experimentation may be required for stainless steel seamless pipes, such as pressure testing (typically at 1.5 times the working pressure) and weld non-destructive testing (e.g., RT/UT), to confirm product compliance with standards. Pressure testing can detect whether the pipe leaks or ruptures under certain pressures; while non-destructive testing of welds can detect defects inside the welds to ensure their quality.

Certificate Issuance
After completing the above process, if the stainless steel seamless pipes meet the relevant requirements of the TR CU 032 regulation, the certification body will issue the corresponding EAC certification certificate (EAC Declaration of Conformity or EAC Certificate of Conformity). Once the company obtains the certificate, it can legally sell the product in member countries of the Eurasian Economic Union.

Significance of Certification
Obtaining EAC certification for stainless steel seamless pipes signifies that the product complies with the safety standards for pressure equipment in Customs Union countries, enabling it to circulate and be sold smoothly in Customs Union countries such as Russia, Kazakhstan, and Belarus. This helps companies expand their markets, enhance product competitiveness, and also ensures the safety of pressure equipment using these stainless steel seamless pipes, providing consumers with reliable products.
Certification Body: Shanghai Jinghe Industrial Equipment Testing Co., Ltd.  
Certification body: Shanghai Jinghe Industrial Equipment Testing Co., Ltd.