Flanges & fittings for marine/offshore: duplex, super duplex, and 316 stainless for seawater service. Third-party inspection. Quote in 30 minutes.
Corrosion-resistant forged flanges manufactured for commercial shipbuilding, offshore oil platforms, naval defense vessels, and marine ballast water systems.
| Material Grade | Specific Application & Fluid Service |
|---|---|
| ASTM A182 F51 Duplex 2205 | Main seawater cooling systems |
| ASTM A182 F316L | Bilge, ballast, and sanitary piping |
| Monel 400 (UNS N04400) | High-velocity marine propeller & piping |
Every flange manufactured for Marine Industry Flanges is forged from 100% prime tested steel billets with complete melt-heat traceability. Remax Forge performs Spectro chemical analysis, tensile testing, yield strength verification, elongation measurement, and Brinell or Vickers hardness checks according to ASTM A105, A182, A350, and ASME Section II standards.
For critical fluid handling and high-pressure duties, we execute Positive Material Identification (PMI) testing using calibrated XRF analyzers, Charpy V-notch impact testing at design minimum temperatures (down to -46°C for A350 LF2 or cryogenic conditions for austenitic alloys), and grain size examination compliant with ASTM E112.
Non-destructive examination (NDE) procedures including 100% Ultrasonic Testing (UT) for internal defect detection, Liquid Penetrant Inspection (LPI), and Magnetic Particle Inspection (MPI) are conducted per ASME Section V specifications.
Every dispatch is accompanied by an EN 10204 Type 3.1 Mill Test Certificate (MTC) detailing complete chemical, mechanical, and heat-treatment batch records. Independent third-party inspection (TPI) by global authorities including Lloyd's Register, Bureau Veritas, DNV-GL, TÜV, and SGS is routinely facilitated upon project requisition.
A: Standard production includes EN 10204 3.1 MTCs with full raw material traceability. For marine projects requiring classification society witness (DNV, ABS, Lloyd's Register), third-party inspection and EN 10204 3.2 endorsement can be arranged prior to dispatch.
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