Titanium Pipe Plugs
Updated : Jul. 16, 2025Titanium pipe plugs offer strong, lightweight, and corrosion-resistant sealing for threaded pipe ends. Ideal for saltwater, chemical, and high-pressure systems.
Available in NPT and metric sizes, with custom options and fast delivery. Explore our stock or request a quote today.
Titanium pipe plugs specifications
Our titanium pipe plugs comply with the ISO 9001 quality management system and are available with EN 10204 3.1/3.2 material certificates.
Selected models also meet the PED 2014/68/EU Pressure Equipment Directive, ensuring full traceability and reliable performance.
- ASME B16.11
- ASTM B348 / B381
- ASME B1.20.1 / ISO 7-1
- ISO 9001, EN 10204
Popular titanium pipe plug options
- Materials: CP-Ti (Grade 2), 6Al-4V (Grade 5), Ti-Pd (Grade 7), Ti Code 12 (Grade 12), 6Al-4V ELI (Grade 23)
- Standard sizes: 1/8 in to 3 in (commonly used: 1/4 in, 3/8 in, 1/2 in, 3/4 in)
- Thread types: NPT, BSP / BSPT, UNF
- Head styles: hex head, square head, hex socket, slotted head
- Surface finish: standard machined, anodized
- Connection types: threaded, welded
Titanium pipe plugs are in stock and ready to ship. Custom sizes and fast delivery are available. Precision threads ensure a reliable seal. Complete titanium fittings are also offered. Full material traceability guaranteed. Contact us for a quote today. Quick Quote
Solid titanium hex pipe plugs
Solid titanium hex pipe plugs are used to seal threaded pipe ends such as NPT. They offer excellent corrosion resistance and a tight seal, making them ideal for harsh environments like chemical processing and marine applications. In-stock and customizable.
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| NPT SIZE (in) | AF NOM (in) | HH MIN (in) | L LENGTH (in) |
|---|---|---|---|
| 1/8 | 0.438 | 0.281 | 0.500/0.563 |
| 1/4 | 0.625 | 0.281 | 0.625 |
| 3/8 | 0.688 | 0.344 | 0.688 |
| 1/2 | 0.875 | 0.344 | 0.750 |
| 3/4 | 1.062 | 0.407 | 0.750 |
| 1 | 1.375 | 0.407 | 0.875 |
| 1-1/4 | 1.750 | 0.594 | 1.000 |
Solid titanium square pipe plugs
Solid titanium square pipe plugs are designed to seal threaded pipe ends such as NPT. Built for strength and corrosion resistance, they perform well in harsh environments like chemical and marine applications. Customization and in-stock options available.
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| NPT SIZE (in) | C MIN (in) | B MIN (in) | L MIN (in) |
| 1/8 | 0.28 | 0.25 | 0.375 |
| 1/4 | 0.38 | 0.25 | 0.438 |
| 3/8 | 0.44 | 0.31 | 0.500 |
| 1/2 | 0.56 | 0.38 | 0.563 |
| 3/4 | 0.62 | 0.44 | 0.625 |
| 1 | 0.81 | 0.50 | 0.750 |
| 1-1/4 | 0.94 | 0.56 | 0.813 |
| 1-1/2 | 1.12 | 0.62 | 0.840 |
Corrosion-resistant socket weld pipe plugs
Corrosion-resistant socket weld pipe plugs are used for permanent sealing of high-pressure pipelines. They offer excellent sealing performance and corrosion resistance, widely applied in chemical, marine, and high-purity systems.
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| Specification | HEX, "H" (in) | WALL THK. (in) | LENGTH "L" (in) | HEX DEPTH (in) |
|---|---|---|---|---|
| NPT SIZE | ANSI | "W" MIN | MIN | "D" MIN |
| 1/8 | 0.187 | 0.054 | 0.375 | 0.120 |
| 1/4 | 0.250 | 0.081 | 0.438 | 0.190 |
| 3/8 | 0.312 | 0.117 | 0.500 | 0.190 |
| 1/2 | 0.375 | 0.145 | 0.563 | 0.250 |
| 3/4 | 0.562 | 0.162 | 0.625 | 0.310 |
| 1 | 0.625 | 0.180 | 0.750 | 0.380 |
| 1-1/4 | 0.750 | 0.215 | 0.812 | 0.450 |
Titanium tapered plugs for heat exchangers
We offer titanium tapered plugs in a wide range of sizes, covering pipe diameters from 1/4 inch to 4 inches in stock, suitable for various sealing needs.
Titanium tapered plugs are cost-effective and highly efficient—one of the fastest ways to repair heat exchanger leaks.
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Both standard and custom sizes are available based on customer requirements. With outstanding corrosion resistance, our titanium tapered plugs are shipped worldwide, with flexible supply even for small-batch orders.
Chalco titanium pipe plug inventory
Standard sizes from 1/8" to 2" are available from stock.
Custom sizes and threads are also supported — contact us to get exactly what you need. Quick Quote
| Specification | NPT in | Head Type | Alloy | In Stock |
|---|---|---|---|---|
| 1/8 NPT HEX HD PIPE PLUG TI GR 2 | 1/8 | HEX HD | GR 2 | 53 |
| 1/4 NPT HEX HD PIPE PLUG TI GR 2 | 1/4 | HEX HD | GR 2 | 45 |
| 1/4 NPT HEX HD PIPE PLUG TI GR 2 | 1/4 | HEX HD | GR 2 | 456 |
| 3/8 NPT HEX HD PIPE PLUG TI GR 2 | 3/8 | HEX HD | GR 2 | 42 |
| 1/2 NPT HEX HD PIPE PLUG TI GR 2 | 1/2 | HEX HD | GR 2 | 65 |
| 1/2 NPT X 1/2 SP SLOT PLUG PER DWG TI GR 2 | 1/2 | SP SLOT | GR 2 | 75 |
| 1/2 NPT X 3/8 SLOTTED PIPE PLUG TI GR 2 | 1/2 | SP SLOT | GR 2 | 66 |
| 3/4 NPT HEX HD PIPE PLUG TI GR 2 | 3/4 | HEX HD | GR 2 | 23 |
| 3/4 NPT BULL PLUG TI GR 2 | 3/4 | BULL | GR 2 | 154 |
| 1 NPT HEX HD PIPE PLUG TI GR 2 | 1 | HEX HD | GR 2 | 85 |
| 1-1/2 HEX HD PIPE PLUG TI GR 2 | 1-1/2 | HEX HD | GR 2 | 456 |
| 2 NPT HEX HD PIPE PLUG TI GR 2 | 2 | HEX HD | GR 2 | 12 |
| 1/8 NPT HEX HD PIPE PLUG 6-4 TI GR 5 | 1/8 | HEX HD | GR 5 | 85 |
| 1/4 NPT HEX HD PIPE PLUG 6-4 TI GR 5 | 1/4 | HEX HD | GR 5 | 65 |
| 3/8 NPT HEX HD PIPE PLUG TI GR 7 | 3/8 | HEX HD | GR 7 | 75 |
| 1/2 NPT HEX HD PIPE PLUG TI GR 7 | 1/2 | HEX HD | GR 7 | 68 |
| 1/4 NPT HEX HD PIPE PLUG TI GR 12 | 1/4 | HEX HD | GR 12 | 95 |
| 1/2 NPT HEX HD PIPE PLUG TI GR 12 | 1/2 | HEX HD | GR 12 | 81 |
Titanium pipe plugs applications
Chalco Titanium's pipe plugs are widely used in critical industries where sealing performance, corrosion resistance, and full material traceability are essential. Typical applications include:
Seawater desalination systems
Used to seal spare ports, titanium plugs withstand long-term exposure to high-salinity and salt spray environments, ensuring stable system operation.
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Chemical reactors and pressure vessels
Serve as sealing plugs for inspection or expansion ports, meeting high-pressure sealing requirements and allowing for system upgrades and maintenance.
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Applied in pharmaceutical and biopharmaceutical industries to isolate clean fluid pathways, prevent contamination, and ensure biosafety.
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Nuclear pipeline maintenance and isolation
Used for sealing and servicing titanium alloy pipelines in nuclear plants—especially in cooling systems and control lines.
Contact us nowCase study – Middle East desalination project:
In a coastal desalination plant in the Middle East, the client chose Chalco Titanium's Grade 2 threaded titanium plugs to seal 1/2" and 3/4" pipe ends.
Despite harsh conditions of salt, heat, and pressure, the plugs delivered outstanding sealing and corrosion resistance.
After one year in operation, hydrostatic testing showed zero leakage, and the customer praised the thread precision and fast delivery.
We offer professional solutions
Worried about corrosion or leakage with standard metal plugs?
Our titanium pipe plugs offer outstanding corrosion resistance. They maintain a reliable seal even in seawater, acidic, alkaline, or high-temperature environments—ensuring safe and stable system operation.
Can't find the right thread size?
We support a wide range of thread standards including NPT, BSP, UNF, and metric. Custom machining based on your drawings or samples is available to meet your exact connection requirements.
Concerned about long lead times or low stock?
We keep a large inventory of standard titanium pipe plugs. Most orders ship within 1–2 working days—ideal for urgent deliveries.
Only need a small quantity?
No minimum order quantity. Whether you need one titanium plug or a thousand, we respond quickly and ship flexibly to meet your needs.
Need complete project support?
In addition to titanium pipe plugs, we supply a full range of titanium fittings including pipes, flanges, elbows, and more—enabling one-stop sourcing to simplify your procurement process.
Titanium pipe plugs – related products and materials
In addition to titanium pipe plugs, we also offer metric plug fittings and a wide range of high-performance alloy sealing components tailored to your specific working conditions.
Available material options:
- Zirconium alloys: Zirconium 702, Zirconium 705
- Nickel-based alloys: Alloy 600, 625, 718, 825, C-22, C-276, C2000, B2, B3, 686
- Super austenitic stainless steels: Alloy 904L, AL-6XN, 254SMO, Nitronic 60
- Duplex stainless steels: 2205, 2507 (SAF 2507)
- Tantalum grades: Tantalum UT35N, 556, and others
Related titanium pipe fittings available:
Titanium Flanges
Titanium Transition Reducer
Titanium Tees
Titanium Elbows
Titanium Pipe Caps
Titanium Coupling
Frequently asked questions
Is a titanium pipe plug better than stainless steel?
Yes—especially in corrosive environments. Compared to stainless steel, titanium offers superior corrosion resistance. It maintains a tight seal even in seawater, acidic, alkaline, and chloride-rich conditions.
Stainless steel plugs, on the other hand, are prone to rust and corrosion in such environments, which can lead to system failure.
Why choose titanium plugs if they cost more?
Although the initial cost is higher, titanium is far more durable than stainless steel. It requires little to no maintenance and has a much longer service life—reducing total cost over time.
Titanium plugs are ideal for systems demanding long-term reliability, such as chemical pipelines, seawater transport, and lab equipment.
Are titanium pipe plugs safe?
Absolutely. Titanium is known for its excellent mechanical strength and biocompatibility. It is widely used in medical, aerospace, and nuclear industries—where safety is critical.
When used in plugs, its high strength, corrosion resistance, and non-toxic nature ensure stable, long-term operation.
What's the difference between a pipe plug and a pipe cap?
- Pipe plug: Designed to seal internal threads. Typically features an external thread that screws into the pipe end.
- Pipe cap: Used to close the external end of a pipe. It fits over the outside of the pipe and is often welded or socket-welded in place.
Both serve similar purposes, but they differ in installation method and application. Choose based on your system's design.
