Carbon steel 90 ° elbow

Carbon Steel 90° Elbow

The Industry Standard for Right-Angle Piping

Our Carbon Steel 90° Elbows are the fundamental building blocks of industrial piping, designed to execute a sharp, 90-degree change in direction. As the most widely used fitting in pipeline systems, they are engineered to connect pipes securely while withstanding high pressure, heavy loads, and temperature fluctuations.

Manufactured from high-grade carbon steel, these elbows offer superior tensile strength and impact resistance at a highly economical price point. Whether for structural applications, water transport, or high-pressure steam lines, our 90° elbows ensure reliable performance and leak-proof connections.

Key Features & Benefits

• Maximum Directional Change: The 90-degree angle allows for efficient routing of pipelines around obstacles and through tight structural spaces.

• High Durability: Constructed from robust carbon steel (ASTM A234 WPB, A105), providing excellent resistance to mechanical stress and abrasion.

• Cost-Effective: Offers the best balance of strength and affordability, making it the standard choice for general industrial and commercial plumbing.

• Versatile Configurations: Available in Long Radius (LR) for smooth flow or Short Radius (SR) for confined spaces, and compatible with Butt Weld, Threaded, and Socket Weld connections.

• Broad Compatibility: Ideal for connecting to standard carbon steel pipes used in oil & gas, water treatment, power generation, and construction.

Technical Specifications

• Material Grades:

• Wrought Carbon Steel: ASTM A234 WPB / WPC (Standard for piping)

• Forged Carbon Steel: ASTM A105 (High strength for high pressure)

• Low-Temp Carbon Steel: ASTM A420 WPL6 (For cold environments)

• Size Range: 1/2" to 72" (DN15 to DN1800)

• Wall Thickness: SCH 10, SCH 20, SCH 30, SCH 40 (STD), SCH 80 (XS), SCH 160, XXS

• Radius Options:

• Long Radius (LR): Center-to-face distance is 1.5 x Nominal Pipe Size (Standard).

• Short Radius (SR): Center-to-face distance is 1.0 x Nominal Pipe Size (Compact).

• Standards:

• Dimensions: ASME B16.9 (Factory-made Wrought Fittings), ASME B16.11 (Forged Fittings).

• Material: ASTM A234 / ASME SA234.

• Connection Types: Butt Weld (BE), Threaded (NPT/BSP), Socket Weld (SW), Flanged.

Applications

• Oil & Gas: Transport of crude oil, natural gas, and refined products.

• Water & Wastewater: Municipal water supply, irrigation, and treatment plants.

• Power Generation: High-pressure steam lines and cooling systems.

• Construction: Structural supports, scaffolding, and HVAC systems.

• Chemical Industry: Transport of non-corrosive solvents and chemicals.

Manufacturing Process

We utilize proven manufacturing techniques to ensure the integrity of every 90° elbow:

• Hot Push Forming: The standard method for seamless elbows. A pipe billet is heated and pushed over a mandrel to form the 90° bend, ensuring uniform wall thickness and grain structure.

• Cold Forming/Pressing: Used for smaller sizes to maintain precise dimensional tolerances.

• Welded Construction: For large diameter elbows (DN700+), steel plates are cut and welded (segmented) to achieve the required curvature.

Quality Assurance

Every Carbon Steel 90° Elbow undergoes rigorous quality control:

• Chemical Analysis: Verification of Carbon, Manganese, and alloy content.

• Mechanical Testing: Tensile strength, yield strength, and elongation verification.

• Non-Destructive Testing (NDT): Radiography (RT) and Ultrasonic Testing (UT) to detect internal flaws.

• Dimensional Inspection: Precision checking of the 90° angle, radii, and end-beveling.

• Surface Protection: Application of anti-rust oil, black varnish, or galvanization to prevent corrosion.

Packaging

To ensure safe delivery, our elbows are bundled in seaworthy wooden crates or steel pallets with protective separators. Each fitting is clearly marked with heat numbers and specifications for full traceability.