ASME B16.5 316L Stainless Steel Blind Flange Class 150 for Corrosion-Resistant Pipeline Blanking

ASME B16.5 Stainless Steel 316L Blind Flange DN80 Class 150 with ISO 9001 PMI Hydrostatic Certified

The ASME B16.5 Stainless Steel 316L Blind Flange DN80 Class 150 is a premium corrosion-resistant pipeline blanking solution manufactured from UNS S31603 low-carbon stainless steel. Fully certified with ISO 9001 quality assurance, PMI verification, and hydrostatic testing, it is the trusted choice for demanding corrosive service environments.

Comprehensive Quality Certification Package

• ISO 9001:2015 Certified Manufacturing: Produced in a fully certified facility with documented quality management covering material procurement, production processes, inspection procedures, and traceability systems
• PMI (Positive Material Identification): 100% XRF analysis to confirm 316L grade chemistry including molybdenum content (2.0-3.0%), ensuring authentic corrosion-resistant alloy composition
• Hydrostatic Test Certification: Each blind flange is hydrostatically pressure tested at 1.5x Class 150 design pressure per ASME B16.5, with individual test reports documenting test pressure, duration, and results
• EN 10204 3.1 MTC Included: Full material certification with chemical analysis, tensile test results, and intergranular corrosion test (IGC per ASTM A262 Practice E) for 316L grade verification
• Dimensional Verification: 100% dimensional inspection including flange thickness, bolt circle diameter, bolt hole size, and raised face dimensions against ASME B16.5 tolerances

Technical Specifications

316L Blind Flange Advantages

The low-carbon 316L grade (max 0.03% C) provides superior resistance to intergranular corrosion after welding and excellent pitting and crevice corrosion resistance in chloride-containing environments. Blind flanges are essential for pipeline end termination, pressure testing isolation, and future expansion connection points in piping systems.

Target Applications

Offshore platform piping systems, marine and seawater handling, chemical storage and transfer, desalination plants, pharmaceutical process piping, and coastal industrial facilities where 316L corrosion resistance and verified quality documentation are mandatory for regulatory compliance.

Inquire now for competitive pricing on fully certified 316L blind flanges with complete ISO 9001 documentation.