Bushing
What is a Threaded Bushing?

A Threaded Bushing is a reducing pipe fitting used to connect pipes or fittings of different sizes. It features male threads on the outer diameter and female threads on the inner diameter, allowing a smooth transition between components with varying diameters.
Available in hex head and round head forms, bushings are ideal for space-saving connections, especially in instrumentation, valve assemblies, gas lines, and process plants.
Key Features
- Size Reduction Function – Connects different-sized threaded components securely.
- Internal & External Threads – Supports multiple thread standards and types.
- Hex Head for Wrenching – Ensures easy installation and torque control.
- Space-Efficient Design – Ideal for tight layout systems.
- Built to Global Standards – Manufactured per ASME, ASTM, DIN, and MSS-SP guidelines.
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
Parameter | Details |
---|---|
Sizes | ⅛" x ¼" to 4" x 3" |
Thread Types | NPT, BSP, BSPT, ISO Metric |
Pressure Ratings | Class 3000 / 6000 |
Material Options | SS 304 / 316, Carbon Steel, Brass, Duplex |
Standards | ASME B16.11, MSS-SP-95, BS 3799 |
Manufacturing | Precision Machined from Solid Bar |
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 |
Bushing Type | Size (inches) | Weight per 100 pcs (kg) |
---|---|---|
Hex Head Bushing | 1" x ½" | 6.80 |
Hex Head Bushing | 1½" x 1" | 9.70 |
Hex Head Bushing | 2" x 1½" | 13.50 |
Applications of Threaded Bushing
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What is the function of a threaded bushing?
It connects two components of different thread sizes, providing a smooth size transition.
Can bushings be reused?
Yes. Bushings are threaded and removable, making them suitable for reusable connections.
Do you offer bushings with both male and female threads in different types?
Yes. We provide mixed-thread bushings such as BSP male x NPT female as per requirement.
Are bushings tested for pressure retention?
Yes. Our bushings meet pressure class ratings and sealing specs defined by international standards.
