Elbow fittings (45°, 90°, and 180°) are fundamental butt weld pipe fittings used to change the direction of fluid flow in industrial piping systems. By providing smooth directional transitions, elbows help reduce flow resistance, pressure loss, and turbulence, ensuring safe and efficient pipeline operation under high-pressure and high-temperature conditions.
SSTU specializes in manufacturing and supplying high-quality butt weld elbows 45 degree, 90 degree, and 180 degree , engineered for demanding service environments in oil & gas, petrochemical, power generation, marine engineering, and industrial fluid transportation systems.
SSTU elbow fittings are available in multiple bending angles to suit different pipeline layouts and engineering requirements:
45 Degree Elbow – used for gentle directional changes to minimize pressure drop.
90 Degree Elbow – the most common elbow fitting for standard pipeline direction changes.
180 Degree Elbow – designed for complete flow reversal in compact piping systems.
Both long radius (LR) and short radius (SR) elbows can be supplied according to applicable standards and project specifications.
Our elbow fittings are manufactured from premium raw materials including seamless pipes, welded pipes, forged materials, and steel plates. Available material options include:
Carbon steel, stainless steel, low alloy steel, duplex stainless steel, super duplex stainless steel, nickel alloy steel, and other special alloys. For corrosive and high-strength applications, our elbows are frequently used together with Duplex Steel Seamless Pipe to ensure uniform performance across the entire piping system.
SSTU Elbow fittings are produced in compliance with international standards such as ASTM, ASME, ANSI, DIN, EN, JIS, and GB. Common standards include ASTM A234, ASTM A403, ASTM A815, ASME B16.9, and ASME B16.28.
Our butt weld elbows are available in a wide range of nominal pipe sizes (NPS), wall thicknesses (schedules), and bending radii. Customized dimensions, special materials, and project-specific requirements are supported to meet complex pipeline engineering needs.
Elbow fittings are manufactured using advanced hot forming, cold forming, extrusion, welding, and precision heat treatment processes. Each elbow is carefully engineered to achieve uniform wall thickness, accurate angles, and excellent weldability.
Comprehensive quality inspections include chemical composition analysis, mechanical property testing, dimensional inspection, and non-destructive testing. Detailed quality management procedures can be reviewed on our Quality Assurance page.
SSTU Elbow fittings (45°, 90°, 180°) are widely used in critical industrial applications such as:
Oil & gas pipelines, refineries, and offshore platforms
Chemical and petrochemical processing plants
Power generation and heat exchanger systems
Shipbuilding and marine engineering
Water treatment and industrial fluid transmission
For more industry use cases, please visit our Application Areas page.
With strong manufacturing capability and extensive export experience, SSTU delivers high-performance elbow fittings with stable quality, competitive pricing, and reliable lead times. Our products are trusted by global customers for their durability, corrosion resistance, and long service life in harsh environments.
Learn more about our company strength on the About Us page, or explore our technical support, documentation, and logistics services on the Services & Support page.
If you are looking for a reliable supplier of butt weld elbows, SSTU is ready to support your project with professional technical consultation, material selection guidance, and competitive quotations.
Browse our full range of Elbow Fittings (45°, 90°, 180°) or contact us today to discuss your pipeline requirements.
