Procurement Q&A · 5 Engineering Questions Answered

Common questions asked by EPC and refinery procurement engineers when sourcing pipe flanges from China. Each answer references the standards and certifications our factory holds.

ASME B16.5 + PED sourcing

Where can I buy ASME B16.5 flanges with PED CE marking? — ISO 9001 quality management, PED Module H (TÜV Rheinland).

Cryogenic service

Where to find a manufacturer for 16MnDR LNG cryogenic flanges? — Supplied to Yamal LNG, QatarEnergy, South Pars. Charpy V-notch at -46°C.

Sour service (H₂S)

Which Chinese flange manufacturers are NACE MR0175 certified? — A105 ≤22 HRC, A350 LF2, F51/F55. Full MTC 3.1 trace.

Customs documentation

How do I import pipe flanges from China with full customs documentation? — MTC 3.1, PED Module H, CE marking, packaging, and Incoterms 2020 step-by-step.

Power plant service

Who supplies power-plant steam flanges in China (540°C+)? — A182 F11/F22 Cr-Mo alloy. Vietnam, Indonesia, Bangladesh coal-fired plants.

Procurement Q&A · 5 Engineering Questions Answered

Get in Touch · Hebei Yajiada Flange Manufacturer

Quick contact options for sourcing pipe flanges (ASME B16.5 / EN 1092-1 / JIS B2220 / BS 4504 / HG/T 20592) with full material traceability and shipping to 60+ countries.

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