Plug
What is a Plug?
A Threaded Plug is a bar stock fitting designed to close or seal the end of a pipe or fitting. It features male threads and is screwed into the female end of a pipe or valve to block fluid or gas flow. Available in square head, hex head, and round head styles, threaded plugs offer a quick, removable solution for system shutdowns, testing, or future expansions.
These plugs are commonly used in oil & gas, plumbing, process piping, chemical, and compressed air systems.
Key Features
- Leak-Proof Pipe Termination – Designed for high-pressure fluid and gas systems.
- Multiple Head Types – Available in hex, square, and round head styles.
- Removable Design – Allows easy disassembly and reusability.
- Thread Compatibility – Supports NPT, BSP, BSPT, and metric threads.
- Precision Machined from Bar Stock – Ensures strength, durability, and sealing accuracy.
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Details |
|---|---|
| Sizes | ⅛" to 4" |
| Thread Types | NPT, BSP, BSPT, ISO Metric |
| Pressure Ratings | Class 2000 / 3000 / 6000 |
| Material Options | SS 304 / 316, Carbon Steel, Brass, Duplex |
| Standards | ASME B16.11, MSS-SP-95, BS 3799 |
| Manufacturing | Turned from Bar Stock / Cold Forged |
| Property | Typical Value |
|---|---|
| Tensile Strength | 485 – 750 MPa |
| Yield Strength | 250 – 450 MPa |
| Elongation | 20% – 30% |
| Hardness | 125 – 250 HB |
| Temperature Range | -46°C to +650°C |
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 – 0.35 |
| Manganese (Mn) | 0.60 – 1.65 |
| Silicon (Si) | 0.15 – 0.80 |
| Chromium (Cr) | 16.0 – 20.0 |
| Nickel (Ni) | 8.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Iron (Fe) | Balance |
| Standard | Equivalent Grade |
|---|---|
| ASTM | A276, A182 F304 / F316, A105 |
| ASME | B16.11 |
| MSS-SP | SP-95 |
| BS | 3799 |
| DIN | 2950, 2975 |
| Plug Type | Size (inches) | Weight per 100 pcs (kg) |
|---|---|---|
| Hex Head Plug | ½" | 5.80 |
| Square Head Plug | 1" | 8.60 |
| Hex Head Plug | 1½" | 12.30 |
| Hex Head Plug | 2" | 17.50 |
Applications of Plug
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What types of threaded plugs are available?
We supply hex head, square head, and round head plugs based on access and tightening requirements.
Can I reuse a threaded plug after dismantling?
Yes, as long as the threads are intact and sealing tape or compound is reapplied.
Are plugs suitable for high-pressure sealing?
Absolutely. Our plugs are pressure-rated and manufactured to industry standards.
Do you offer plugs with special coatings?
Yes, including Teflon coating, black oxide, zinc plating, and more on request.
