Hebei Hengyuan Industrial Co., Ltd.

Standards & certifications

This page mirrors the public "Quality control" and "About us" sections of the Hebei Hengyuan corporate site: quality management narrative, commonly cited standards, and certificate thumbnails. For tenders and release, always defer to the standards, inspection plans, and original documents agreed in your contract.

Disclaimer: web copy can lag updates; certificate numbers, validity dates, and scopes must be verified with the issuing authorities and stamped scans.

Quality management system

Hebei Hengyuan Industrial Co., Ltd strictly implements the ISO 9001:2015 quality management system, establishing a comprehensive quality control system from raw material procurement to manufacturing, quality testing, and warehousing. Our quality control department operates independently, equipped with professional technical personnel and advanced testing equipment to ensure every batch of products meets national standards and industry specifications.

Our quality control system mainly includes:

  • Raw material quality control — strict inspection of all incoming materials to ensure they meet design requirements, with a qualified supplier management system.
  • Production process control — checkpoints at key processes throughout production, with real-time monitoring of manufacturing parameters for consistent quality.
  • Finished product inspection — comprehensive inspection of each batch, including appearance, dimensions, coating thickness, adhesion, mechanical properties, and more.
  • Quality tracking system — product batch management and traceability so each batch can be traced back to raw material lots and production processes.
Quality management system

Quality policy

We adhere to the quality policy of "Quality First, Customer First, Continuous Innovation, Pursuit of Excellence" to provide customers with high-quality, reliable pipeline products and professional technical services.

Testing equipment & capabilities

Advanced testing equipment and comprehensive capabilities (summary).

Comprehensive testing lab

Physical property testing

  • Tensile strength testing
  • Flattening test, bending test
  • Hardness testing
  • Impact toughness testing
  • Dimension and wall thickness precision testing
Coating testing equipment

Coating performance testing

  • Coating thickness testing
  • Adhesion testing
  • Coating continuity testing
  • Impact resistance testing
  • Corrosion resistance testing
Mechanical property testing

Special performance testing

  • Hydrostatic pressure testing
  • High and low temperature cycle testing
  • Wear resistance testing
  • Aging test
  • Sanitary performance testing
Quality inspection process

Field & process

Imagery matches the "Quality control" page: lab, coating test equipment, mechanical testing, and inspection process.

Standards & certifications

Compliance with major standards and multiple certifications (standard lists from the corporate quality page).

Implementation standards

National standards (GB)

  • GB/T 5135.20-2010: "Automatic Sprinkler Systems Part 20: Coated Steel Pipes"
  • GB/T 37594-2019: "Technical Specification for Anti-Ultraviolet Three Layer Fusion Bonded Powder Coating of Steel Pipeline"
  • GB/T 42541-2023: "Coated Steel Pipes for Gas Pipelines"
  • GB/T 23257-2017: "Polyethylene Coating for Buried Steel Pipelines"
  • GB/T 39636-2020: "Technical Specification for Fusion Bonded Epoxy Powder Coating of Steel Pipeline"
  • GB/T 28897-2021: "Steel-Plastic Composite Pipes and Fittings for Fluid Transportation"
  • GB/T 8163-2018: "Seamless Steel Pipes for Fluid Transportation"
  • GB/T 3091-2015: "Welded Steel Pipes for Low Pressure Fluid Transportation"
  • GB/T 9711-2023: "Steel Pipes for Pipeline Transportation Systems in Petroleum and Natural Gas Industries"

Industry standards

  • CJ/T 120-2016: "Plastic-Coated Steel Pipes for Water Supply" (construction industry)
  • SY/T 0315-2013: "Technical Specification for Fusion Bonded Epoxy Powder External Coating of Steel Pipeline" (oil and gas industry)
  • MT/T 181-1988: "Safety Performance Testing Specification for Plastic Pipes Used in Coal Mines" (coal industry)
  • CDP-S-PC-AC-008-2009/A: "Epoxy Powder (for Three-Layer PE)" (industry standard)
  • SY/T 0442-2018: "Technical Standard for Fusion Bonded Epoxy Powder Internal Anti-Corrosion Coating of Steel Pipeline" (oil and gas industry)
  • SY/T 6717-2016: "Technical Requirements for Internal Coating of Tubing and Casing" (oil and gas industry)

International standards

  • ISO 21809-2 (ISO): "Petroleum and Natural Gas Industries - External Coatings for Buried or Submerged Pipelines"
  • DIN 30670 (DE): "Polyethylene Coatings of Steel Pipes and Fittings"
  • CSA Z245.20-22 (CA): "External Fusion Bond Epoxy Coating for Steel Pipe"
  • NF A 49-710 (FR): "Three-Layer Polyethylene External Coating"
  • AWWA C213a (US): "Fusion-Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines and Fittings"
  • GS EP COR 222 (UK): "Fusion Bonded Epoxy Coating for Pipeline"

Quality certifications (summary)

These four tiles match the "Quality certifications" block on the corporate quality page.

Certifications & honors

Order and artwork follow the corporate "About us" "Certifications" section. Click a tile for a larger view in the dialog.

Controlled certificates & permits

For stamped copies, current validity, and product coverage in bid books, owner data rooms, or inspection dossiers, request through RFQ or your commercial channel. Do not republish certificate imagery without compliance sign-off.