Haihao Group produces high-quality EN 1092-1 P355QH1 RF weld neck flanges
Haihao Group, a comprehensive service provider integrating industry and trade, offers one-stop solutions. Recently, we fulfilled an order for EN 1092-1 RF weld neck flanges in dimensions ranging from 40 to 150 millimeters, with a pressure rating of PN16 and made from P355QH1 material, for a Malaysian client. Our products undergo rigorous quality control, including dimensional and non-destructive testing, and come with BV 3.2 certification from the Bureau Veritas.
EN 1092-1 P355QH1 RF weld neck flange
Technical Specifications:
Material Compliance: EN 1092-1 P355QH1 (fine-grained structural steel with -20°C impact toughness)
Dimension Range: DN40 (1½”) to DN150 (6″) in PN16 flange rating
Face Type: Raised Face (RF) per EN 1092-1 specifications
Pressure-Temperature Rating: Suitable for -20°C to 400°C operating conditions
Quality Assurance Protocol:
Material Verification:
- PMI spectroscopy for alloy composition validation
- Mechanical property testing per EN 1092-1 requirements
- Batch certification with full mill test report (MTR) traceability
Dimensional Control:
- CNC machining for ±0.02mm bore tolerance
- 100% hydrostatic pressure testing at 1.5x PN rating
- Surface finish verification (Ra 3.2μm maximum)
Non-Destructive Testing:
- 100% ultrasonic testing (UT) for subsurface defects
- Magnetic particle inspection (MT) per ASTM E709
Certification Highlight:
All flanges are accompanied by Bureau Veritas (BV) 3.2 certification, confirming compliance with:
- EN 10204 3.2 material documentation
- ISO 9001:2015 manufacturing processes
- Third-party witness testing protocols
EN 1092-1 P355QH1 RF weld neck flange
Engineering Support:
This EN 1092-1 P355QH1 RF weld neck flanges order demonstrates Haihao’s capability to deliver critical pressure equipment for demanding applications. Our technical team provides:
- Flange selection assistance for ASME/EN standard transitions
- Bolting torque calculations and gasket optimization
- Field installation guidance for high-pressure systems
For specialized requirements in oil refining, chemical processing, or power generation, our inventory includes a full range of EN 1092-1 and ASME B16.5 flanges in grades P355QH1, ASTM A105, and ASTM A182,etc. Explore our flanges catalog or contact our specialists at sales@haihaogroup.com for tailored solutions.