ASTM B16.5 Titanium Lap Joint Stub End (TG/RJ Facing) | MetalsTitanium
Our Titanium Lap Joint Stub Ends are manufactured in strict accordance with ASTM B16.5 standards. Designed for high-pressure and highly corrosive piping systems, these components offer a cost-effective solution by allowing the use of backing flanges made from carbon or stainless steel, while only the titanium stub end comes into contact with the corrosive media.
- Precision Machining: Our TG (Tongue and Groove) and RJ (Ring Joint) facings are CNC machined to exact tolerances, ensuring a leak-proof seal in critical high-pressure environments.
- Superior Material Integrity: Available in Grade 2 for general corrosion resistance and Grade 5 for high-strength applications. All materials are sourced with full MTC (Mill Test Certification).
- Butt Weld Reliability: The beveled ends are prepared for seamless butt-welding, providing a strong, permanent connection to the pipeline.

- Chemical Processing: Handling aggressive acids and chlorides.
- Desalination Plants: Resisting seawater corrosion for long-term durability.
- Oil & Gas: Critical for offshore platform pressure vessels.
- Aerospace & Defense: Where lightweight and high strength-to-weight ratios are required.
| Item | Specification |
|---|---|
| Standard | ASTM B16.5 / ASME B16.5 |
| Material Grade | Gr1, Gr2, Gr5 (Ti-6Al-4V), Gr7, Gr12 |
| Facing Type | Tongue and Groove (TG), Ring Joint (RJ / RTJ) |
| End Type | Butt Weld (Beveled End) |
| Size Range | NPS 1/2" - 24" (DN15 - DN600) |
| Wall Thickness | Sch 10S, Sch 40S, Sch 80S |
Q: What is the advantage of using a Titanium Stub End with an RJ facing?
A: The Ring Joint (RJ) facing is designed for high-pressure and high-temperature services. It provides a more robust metal-to-metal seal compared to standard Flat Face or Raised Face designs, making it ideal for hazardous or high-integrity piping systems.
Q: Can I customize the length (L) of the stub end?
A: Yes. While we follow standard ASME B16.9 lengths, we can provide customized long-pattern or short-pattern stub ends based on your specific project requirements.
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