High Pressure Forged Threaded Bushing
2.One-piece integrated forging made of premium A105 carbon steel .
3.Outstanding endurance in high-temperature and heavy-pressure working environments .
4.Precision machined NPT/BSPT threads for leakproof threaded installation .
5.Professional reducing design for smooth pipe diameter transition .
6.Widely applicable for petroleum, power, chemical and industrial pipeline systems .
7.Sandblasted surface treatment to boost long-term anticorrosion capability .
8.Compact forged structure lowers cracking risks under frequent pressure fluctuations
Description
Forged Carbon Steel Threaded Reducing Bushing High Pressure Pipe Fitting
Designed to realize smooth diameter transitions for heavy-duty high-pressure industrial pipelines, our ASTM A105 forged threaded reducing bushing serves as a dependable fitting for rigorous engineering projects. It features precisely machined NPT/BSPT standard threads, which deliver tightly sealed zero-leak threaded joints and simplify field pipeline assembly procedures.
It adopts integral die-forging from solid A105 carbon steel, owning a dense monolithic microstructure and excellent impact toughness. This bushing can reliably withstand severe high-temperature and high-pressure working scenarios, fully complying with ASME B16.11 Class 3000 & 6000 industrial standards. Uniform sandblasted surface treatment brings stable rust resistance and chemical inertness, extending the service life of both indoor and outdoor pipeline layouts.
Stocked regular sizes range from 1/2" to 3", supporting prompt bulk shipment. Custom wall thickness, laser OEM logo engraving and bespoke dimension machining services are available. These threaded reducers are widely adopted in power stations, petrochemical plants, shipbuilding works, heating distribution networks and fire-resistant high-pressure piping infrastructures.



Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | ASTM A105 Forged Carbon Steel Threaded Reducing Bushing High Pressure Pipe Fitting |
| Pressure Class | Class 3000 / 6000 Heavy High Pressure Grade |
| Raw Material | Solid A105 carbon steel, integrated one-piece die forging, dense internal grain structure |
| Surface Finish | Uniform sandblasted surface coated with anti-rust oil, stable anti-corrosion & moisture-proof performance |
| Connection Type | Precision machined dual-standard NPT/BSPT tapered threads for reliable threaded assembly |
| Working Temperature | -29℃ ~ 425℃ |
| Applicable Medium | Steam, crude oil, natural gas, industrial water, weak corrosive industrial fluid |
| Certification Standard | Fully complies with ASME B16.11 forged threaded pipe fitting standard |
| Application Scenario | Thermal power plant, petrochemical plant, shipbuilding, heating supply, fire-fighting high-pressure pipeline projects |






Key Features
1.Superior Anti-corrosion & Moisture-proof Performance
Precision sandblasted surface is coated with anti-rust oil to block dampness and mild chemical erosion. The fitting maintains steady durability whether deployed in indoor workshops or outdoor harsh pipeline environments.
2.Leakproof Precision Tapered Thread Connections
Accurately machined NPT/BSPT dual-standard tapered threads deliver tight threaded meshing. Optimized transition structure eliminates assembly gaps, achieving long-term zero leakage under high-pressure pipeline operating conditions.
3.Easy On-site Installation for Pipe Diameter Transition
The dedicated reducing layout realizes seamless caliber conversion between two pipe sizes. It is well compatible with conventional on-site threaded mounting procedures, removing extra transition accessories and shortening field installation time.
4.Solid One-piece Forged Mechanical Property
Adopt monolithic die forging of ASTM A105 carbon steel with fine internal grain structure. Outstanding shock and pressure endurance satisfies Class 3000 & 6000 ratings, strictly following ASME B16.11 industrial specifications.
5.Broad Usage Scenarios With Flexible OEM Options
Widely applicable for power stations, petrochemical facilities, marine piping, heating networks and firefighting high-pressure lines. Regular dimensions from 1/2" to 3" are stocked in bulk; customized wall thickness, laser engraving and bespoke dimension machining are all available.
Dimensions and Specifications
Our Class 3000/6000 forged threaded reducing bushings support full standard inch sizes, mainstream options include:
- 1/2", 3/4", 1"
- 1-1/4", 1-1/2", 2", 2-1/2", 3"
- Custom size, OEM laser logo engraving and special export packaging requests are acceptable
Every bushing is manufactured with tight dimensional tolerances. The robust one-piece forged reducing structure effectively resists structural deformation and prevents leakage during long-term service under high-temperature and high-pressure operating environments.
Materials and Surface Treatments
1.Main Body Raw Material
Solid A105 carbon steel complying with ASME B16.11 features outstanding mechanical toughness and impact resistance. It delivers stable performance under Class 3000 & 6000 heavy pressure ratings, perfectly fitting pipeline layouts that require diameter transition between mismatched pipe sizes.
2.Surface Finish
Uniform sandblasting builds a compact anti-corrosion metal layer to defend against rust, moisture and mild chemical media, granting dependable service for industrial pipelines both indoors and outdoors. Anti-rust oil coating can be applied as per customer demands.
3.Connection Processing
Internal and external NPT/BSPT standard tapered threads are precision machined. The evenly cut thread profile enables tight threaded mating, forming leakproof reducing joints when assembled with matching standard carbon steel pipes.






Standards and Certifications
Our products comply with rigorous international industry standards:
- Compliant with ASME B16.11 (Class 3000 / 6000 Forged Threaded Pipe Fittings)
- ISO9001 quality management system certified
All forged threaded reducing bushings undergo comprehensive testing for pressure resistance, thread dimensional matching and sealing performance before packaging delivery.






Applications
1.Petrochemical & Power Pipeline
Fit for high-temperature steam, oil, gas and corrosive fluid high-pressure pipelines that require diameter transitions in power plants and chemical factories.
2.Shipbuilding Pipeline Systems
Applied to marine fuel, hydraulic and heating high-pressure pipeline systems for caliber conversion between different pipe dimensions.
3.Fire Protection & Heating Piping
Suitable for fire sprinkler and central heating high-pressure circulation pipelines where pipe size reduction or transition is needed.
4.Heavy Industrial Fluid Delivery
Used for compressed air, high-pressure industrial fluid transfer, petroleum and process industrial pipelines to realize reliable pipe diameter adaptation.
Installation Instructions
- Thread Pre-treatment: Clean NPT/BSPT threaded sections as well as mating pipe threads, get rid of rust, oil stains and burrs before assembly.
- Position Alignment: Apply proper thread sealant evenly, screw the reducing bushing into matching pipe threads and keep it aligned without skew.
- Controlled Torque Fastening: Tighten the fitting with suitable torque. Avoid over-tightening that may cause thread deformation or cracking.
- Pressure Leak Test: Carry out high-pressure hydrostatic testing after installation to verify perfect sealing of threaded joints.
- Periodic Inspection: Regularly check threaded connection areas to sustain long-term safety of high-pressure piping networks.
Follow industrial high-pressure threaded piping specifications and local safety standards during installation work.
Packaging and Shipping
Each forged threaded reducing bushing is wrapped with anti-collision protective film to prevent scratches and thread deformation during transit. Moisture-proof packaging keeps the sandblasted anti-corrosion surface and precision machined threads intact. Bulk orders are loaded on standard export pallets for convenient handling and container shipment.
Our factory is located in Taigu, Shanxi. We cooperate with mature global logistics channels covering major overseas ports, providing fast, cost-effective mass delivery for all industrial pipeline projects.





Quality Control
1.Raw Material Spectral Composition & Mechanical Test
Every batch of A105 carbon steel raw forgings will undergo full spectral analysis and tensile impact testing to meet ASME B16.11 Class 3000/6000 high pressure performance standards.
2.Dual-port Hydraulic Burst Pressure Inspection
Random finished forged threaded reducing bushings are selected to conduct hydraulic burst test according to the rated working pressure of the pipeline.
3.Double Socket Dimension Precision Calibration
Special custom go-no-go gauges measure pitch, major diameter and thread tolerance of internal and external threads to ensure perfect meshing with standard carbon steel pipes and reliable threaded sealing.
4.Full Surface Visual Defect Screening
100% manual visual inspection after sandblasting to remove burrs, rust stains, cracks and machining flaws on thread sections and outer surfaces, guarantee stable long-term anti-corrosion performance.
OEM and Customization Services
We reach an annual production capacity of 30,000 tons and support large-volume OEM & ODM customized orders. Our professional engineering team provides one-stop customization solutions: custom wall thickness, non-standard inch sizes, laser engraving brand logos and exclusive export packaging for all kinds of heavy industrial pipeline projects. We possess complete forging moulds covering 1/2"~3" specifications, which greatly shorten sample production and mass delivery lead time.






FAQ
Q: Can this forged threaded reducing bushing be buried underground?
A: Extra external anti-corrosion coating is mandatory for underground buried installation. Direct burial without protective anti-corrosion treatment will greatly shorten the service life of the bushing pipeline fitting. Custom anti-corrosion coating solutions can be provided on request.
Q: What is the standard installation method for this Class 3000/6000 forged threaded reducing bushing?
A: Apply qualified thread sealant evenly on matching threads, screw the bushing onto corresponding pipes with proper torque. Avoid excessive tightening that may crack threads, so as to achieve long-term leakproof threaded joints.
Q: Can it withstand pipeline thermal expansion?
A: This is a rigid integrated forged bushing fitting. We recommend installing expansion joints for long-distance pipelines with large temperature fluctuation ranges to absorb thermal deformation stress.
Q: Is it compatible with different steel pipes?
A: It perfectly matches standard carbon steel pipes with corresponding NPT/BSPT thread specifications. Please confirm matching thread sizes and pipe wall thickness prior to formal assembly work.
Q:Why choose forged threaded reducing bushing instead of stainless steel pipe fittings?
A:Integral ASTM A105 die forging brings excellent mechanical impact toughness and stable Class 3000/6000 high pressure bearing capacity. The sandblasted anti-corrosion surface delivers outstanding cost performance for heavy-duty industrial high-pressure diameter-transition pipeline systems.
Contact Us
Searching for dependable forged threaded reducing bushings to advance your industrial piping projects? Our seasoned technical team delivers end-to-end product selection guidance together with comprehensive technical backup support.Email:q1236800000@gmail.com We can furnish official full-version technical datasheets, affordable bulk wholesale quotations and dependable delivery timelines. Our premium forged high-pressure bushing fittings are widely supplied to international projects across power generation, petrochemical sectors, shipbuilding works and firefighting pipeline systems.
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