304 Stainless Steel 90 Degree Elbow Pipe Fitting
2.Precision NPT/BSPT thread, tight and leak-free connection. .
3.90° elbow design, smoothly change fluid direction. .
4.Polished surface, smooth inner & outer wall. .
5.No sand holes, cracks or burrs. .
6.Good pressure resistance, stable structure. .
7.Suitable for water, gas and oil pipeline systems. .
8.Multiple sizes available, custom service supported.
Description
304 Stainless Steel Threaded 90° Elbow
Our ASTM SS304 threaded 90° elbow pipe fittings are designed to smoothly change the flow direction in pipeline systems. Made from standard 304 stainless steel, this fitting boasts outstanding rust and corrosion resistance, making it ideal for both indoor and outdoor piping environments.
Adopting NPT/BSP threaded connection, it allows fast installation without welding. Precision machined threads ensure tight, leak-free sealing and greatly simplify on-site assembly work. The inner and outer walls are smoothly finished to lower fluid resistance. Fine surface treatment enhances appearance and prolongs service life under long working pressure.
We keep mainstream sizes in stock to support prompt bulk shipment. Custom machining and OEM laser logo engraving are available based on your requirements. Widely used in plumbing, heating networks, drinking water pipelines, fire protection, irrigation and various industrial piping systems.



Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 304 Stainless Steel Threaded 90° Elbow Pipe Fittings |
| Pressure Class | Medium-High Pressure Grade |
| Raw Material | ASTM-compliant SS304 stainless steel with dense and uniform microstructure, featuring outstanding rust and corrosion resistance |
| Surface Finish | Optional mirror polishing / matte finish; smooth inner and outer walls without burrs |
| Connection Type | Threaded connection, precision machined thread for tight assembly and reliable leakproof sealing |
| Working Temperature | -20°C ~ 120°C |
| Applicable Medium | Drinking water, heating circulating water, neutral industrial fluids, oil and gas media |
| Certification Standard | Manufactured in accordance with international standards for stainless steel pipe components |
| Application Scenario | Pipeline direction change, plumbing systems, heating networks, drinking water pipelines, fire protection, irrigation, petrochemical facilities, industrial equipment and general piping projects |






Key Features
1.Superior Environmental Adaptability
Forged from ASTM-certified 304 stainless steel, this elbow fitting withstands humid coastal atmosphere, domestic water and weakly corrosive liquids. It keeps stable performance in outdoor piping and general industrial working environments for long-term service life.
2.Precision Connection for Reliable Sealing Performance
Precision-machined threaded ports deliver tight compression sealing. Standard installation achieves stable sealing effect, effectively preventing medium seepage under long-term pressurized operation.
3.90° Bent Structure for Flexible Pipeline Layout
Optimized 90° bent structure changes pipeline flow direction without welding or glue. Standard dimension perfectly matches stainless steel pipes, simplifies on-site piping layout and shortens construction period.
4.Thick-wall Body Ensures Structural Stability
Thick-wall fitting body guarantees pressure-bearing capacity. Compact integrated forming structure resists deformation under pressure, delivers reliable mechanical performance for various pipe turning connection work.
5.Diversified Scenarios & Flexible Customization
Suitable for plumbing systems, heating networks, drinking-water pipelines, fire protection, irrigation, petrochemical and general industrial piping projects. Conventional sizes are stocked for bulk orders; customized wall thickness, laser marking and non-standard dimension processing are supported for OEM cooperation.
Dimensions and Specifications
Our 304 stainless steel 90° elbow pipe fittings cover a full range of standard inch sizes, mainstream specifications are listed below:
- 1/2", 3/4", 1", 1-1/4", 1-1/2", 2"
- Equal elbow available; Custom dimensions, OEM laser marking and dedicated export packaging services are available
Each fitting is manufactured under strict dimensional tolerance management. Its precision-machined two-port 90° bent structure perfectly matches standard stainless steel pipes to sustain stable sealing performance, effectively preventing medium leakage during long-term operation in diverse working scenarios.
Materials and Surface Treatments
1.Main Body Raw Material
Fabricated from ASTM-compliant SS304 stainless steel, the elbow fitting delivers outstanding rust and corrosion resistance against water, oil, gas and weak acidic media. It operates stably in food processing, chemical production, water treatment and marine piping systems for pipeline turning work.
2.Surface Finish
Standard pickling and passivation treatment forms a compact passive anticorrosive film to isolate rust, moisture and mild chemical erosion, supporting reliable use for indoor and outdoor industrial pipelines. Two surface options are available as requested: natural matte finish and mirror polishing finish.
3.Connection Processing
Adopt precision-machined threaded ports, perfectly matched for pipe assembly. Standard installation ensures stable leak-proof performance for all kinds of pipe turning connection services.






Standards and Certifications
Our products are manufactured in strict accordance with global industrial quality norms:
- Fabricated following official process specifications for stainless steel pipe fittings
- Production system certified to ISO 9001 quality management standards
Prior to packaging and shipment, every 304 stainless steel 90° elbow fitting undergoes comprehensive testing. Inspection items include sealing reliability, port dimensional accuracy and anticorrosion performance.






Applications
1.Petrochemical & Industrial Pipeline
Our 304 stainless steel 90° elbow fittings work steadily in factory piping systems for water, gas, oil and low-corrosion fluid transmission. They realize reliable pipeline turning, simplify later equipment maintenance and pipeline upgrading.
2.Shipbuilding & Marine Pipeline Systems
Commonly used for offshore domestic water supply, fuel delivery and heating pipe networks. Outstanding anti-rust and salt-spray resistant performance enables stable operation in damp, corrosive marine environments for permanent pipe turning connection.
3.Food & Water Treatment Piping
Ideal for drinking water projects, beverage production lines and water treatment piping systems. 304 stainless steel meets high hygiene requirements and will not cause secondary pollution to transported media for safe pipeline turning connection.
4.Heating & General Industrial Fluid Delivery
Suitable for central heating circulation pipelines, compressed air pipelines and various industrial fluid conveying lines. Simple on-site installation greatly improves efficiency during daily system maintenance, testing and pipeline reconstruction work.
Installation Instructions
- Pipe Pre-treatment: Cut the stainless steel pipe vertically, deburr the pipe end, clean up metal chips, dirt and impurities before assembly.
- Correct Assembly: Align the pipe and 304 stainless steel 90° elbow fitting properly, ensure the thread or connecting port is fully matched for proper assembly.
- Connection Operation: Complete pipe connection by standard installation method. Avoid improper operation which may cause deformation and sealing failure.
- Pressure Leak Test: Conduct pressure testing after installation to confirm reliable sealing of the joint.
- Periodic Inspection: Inspect connections regularly to guarantee long-term safe operation of the piping system.
Comply with industrial piping specifications and local safety regulations during installation.
Packaging and Shipping
Every 304 stainless steel 90° elbow fitting is wrapped with anti-collision protective film to prevent surface scratches during transit. Moisture-proof packaging protects the pickled passivated surface. Bulk orders are palletized with export-standard pallets for convenient handling and container loading.
Our factory is located in Taigu, Shanxi Province. We cooperate with seasoned global logistics networks covering main overseas ports, providing steady and cost-effective bulk shipment services for industrial piping projects across the world.





Quality Control
1.Raw Material Spectral Composition & Mechanical Test
Every batch of ASTM SS304 stainless steel raw material undergoes full spectral analysis and mechanical property testing, to meet the official technical standards for stainless steel pipe fittings.
2.Hydraulic Sealing Pressure Inspection
Finished 304 stainless steel 90° elbow fittings are randomly sampled for hydraulic sealing tests under rated working pressure, to confirm zero-leakage performance of joint surfaces.
3.Thread & Port Dimension Precision Calibration
Special measuring tools are used to check thread specification, port size and tolerance. This guarantees tight matching with standard stainless steel pipes and stable sealing after assembly.
4.Full Surface Visual Defect Screening
After pickling and passivation, all products go through 100% manual visual inspection. Workers remove burrs, stains and surface imperfections on threads and outer shells, so the fittings can maintain reliable corrosion resistance during long-term use.
OEM and Customization Services
We maintain stable annual production capacity and accept bulk OEM & ODM custom orders. Our professional engineering team provides one-stop customized solutions for various industrial pipeline projects, including customized wall thickness, non-standard dimensions, laser-engraved brand logos and dedicated export packaging. We own a complete set of molds covering sizes from 1/2 inch to 4 inches, which can effectively shorten the lead time for sample trial production and mass delivery.






FAQ
Q:Can this 304 stainless steel 90° elbow fitting be buried underground?
A:Outer anti-corrosion treatment must be carried out before buried installation. Direct burial without protective measures will greatly shorten the service life of the fitting. We can provide customized anti-corrosion schemes upon your demand.
Q: What is the standard installation method for this stainless steel 90° elbow fitting?
A: Trim and deburr the pipe end, align the pipe thread and fitting thread properly, complete assembly by standard threading method. Avoid over-tightening to prevent thread damage, achieving stable long-term leak-free connection.
Q: Can it withstand pipeline thermal expansion?
A: The fitting belongs to rigid connecting parts. For long-distance pipelines with obvious temperature changes, it is suggested to install expansion joints to offset stress caused by thermal deformation.
Q:Is it compatible with different stainless steel pipes?
A:Fits standard stainless steel threaded pipes. Please confirm pipe size and wall thickness specification before ordering.
Q:Why pick 304 stainless steel 90° elbow fitting rather than carbon steel ones?
A:ASTM 304 stainless steel features outstanding rust and corrosion resistance for water, oil, gas and weak acid media. Threaded connection brings convenient on-site installation, suitable for piping systems in food processing, water treatment, marine engineering and corrosive medium scenarios.
Contact Us
Searching for reliable 304 stainless steel 90° elbow fittings to support your industrial piping projects? Our experienced technical team provides full-process product selection guidance and comprehensive technical support.Email:q1236800000@gmail.com We are able to supply complete official technical datasheets, cost-effective bulk wholesale quotations and stable delivery schedules. Our high-grade 304 stainless steel threaded elbow fittings are widely delivered to global projects covering food processing, water treatment, petrochemical industry, shipbuilding and heating pipeline systems.
Online Message