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Product Overview
ASME B16.9 Titanium Stub End is a factory-made wrought buttwelding lap joint fitting to ASME B16.9 dimensional and tolerance requirements, paired with lap joint flanges (ASME B16.5) for corrosion-resistant piping systems. The stub end is butt-welded to the titanium pipe; the flange floats on the stub end's hub, enabling easy alignment and disassembly. This configuration allows using carbon steel or stainless steel flanges with titanium piping, optimizing material costs while retaining titanium's corrosion resistance.
Core Standards & Compliance
- Primary Standard: ASME B16.9 (Factory-Made Wrought Buttwelding Fittings)
- Flange Compatibility: ASME B16.5
- Material Standards: ASTM B381 (titanium forgings), ASTM B363 (titanium pipe/buttweld fittings)
- Corrosion-Resistant Fittings Guidance: MSS SP-43 (supplementary for titanium applications)
Material & Performance Highlights
- Gr2: Balanced corrosion resistance, weldability, and cost-ideal for general corrosive service (seawater, brine, mild acids)
- Gr7 (Ti-0.2Pd): Superior crevice/pitting resistance in chlorides, reducing acids, and oxidizing media-critical for chemical processing and desalination
- Key Traits: Lightweight (high strength-to-weight ratio), non-magnetic, non-toxic, and excellent weldability
Typical Applications
- Chemical/petrochemical (chlor-alkali, pickling, acid handling)
- Desalination plants (RO systems, brine lines)
- Marine/offshore (subsea piping, shipbuilding)
- Pharmaceutical/high-purity (food, beverage, biotech)
- Oil & gas (corrosive production and processing lines)
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