Elbow

Tianjin Ruide Steel Pipe Manufacturing Co., Ltd.
Pipe Elbows,carbon steel pipe elbows,stainless steel elbows,industrial pipe fittings,90° long radius elbows
Elbow
Elbow
Elbow
Elbow

Elbow

Pipe Elbows: High-Precision Fittings for Global Piping Systems

Pipe Elbows are critical pipe fittings designed to change flow direction in piping systems, available in 45°, 90°, and 180° configurations with short-radius (SR) and long-radius (LR) designs. Engineered for global applications, they adapt to harsh regional climates—desert heat, coastal humidity, tropical rains, and high-temperature industrial environments. Crafted from carbon steel, stainless steel, alloy steel,these elbows deliver tailored performance: carbon steel variants offer high strength for industrial use, while stainless steel options provide superior corrosion resistance for chemical and food-grade applications. With smooth flow transition, leak-proof joints, and compatibility with butt-weld, threaded, or socket-weld connections, they are essential for oil&gas, water treatment.

Core Specifications

Item

Details

Product Name

Pipe Elbows (Pipe Fittings)

Angles

45°, 90°, 180°

Radius Designs

Short-Radius (SR), Long-Radius (LR)

Size Range

½" to 48" (DN15 to DN1200)

Materials & Grades

- Carbon Steel: ASTM A234 WPB- Stainless Steel: ASTM A403 WP304/316- Alloy Steel: ASTM A234 WP5/WP9

Wall Thickness

Compliant with pipe schedules (Schedule 20/30/40, custom thickness available)

Connection Types

Butt-weld, threaded, socket-weld

Key Dimensions (Example for Carbon Steel Elbows)

- ½" (DN15): OD 0.84", ID 0.622", WT 0.109", LR center-to-end 1.5"- 4" (DN100): OD 4.5", ID 4.03", WT 0.237", LR center-to-end 6"- 12" (DN300): OD 12.75", ID 12", WT 0.375", LR center-to-end 18"

Weight (Example for Carbon Steel Elbows)

- 1" (DN25) 90° SR: 0.25 lbs- 6" (DN150) 90° LR: 24 lbs- 24" (DN600) 90° LR: 466 lbs


Manufacturing Process

1. Raw Material Preparation: 

Selection of high-quality materials (carbon/stainless/alloy steel) based on application requirements.

2. Forming:

For metal elbows: Hot forging or cold forming to shape the material into 45°/90°/180° configurations, ensuring precise radius and angle.

For plastic elbows: Injection molding for consistent dimensions and smooth interior.

3. Machining: 

Precision machining of ends to match pipe schedules, ensuring tight fit for leak-proof connections.

4. Heat Treatment (Metal Elbows): 

Annealing or quenching to enhance strength and corrosion resistance, critical for alloy and stainless steel variants.

5. Surface Treatment:

Carbon Steel: Painting, galvanizing, or anti-corrosion coating for harsh environments.

Stainless Steel: Pickling and passivation to preserve corrosion resistance.

6. Quality Inspection: 

Dimensional checks, pressure testing, and non-destructive testing (NDT) to verify leak-proof performance and compliance.

7. Packaging: 

Preparation for global shipping with protective materials.

Performance & Advantages

Smooth Flow Transition: 

Minimizes turbulence and pressure drop, optimizing fluid dynamics in piping systems.

High Strength & Durability: 

Metal elbows withstand high pressure and temperature, suitable for industrial and oil&gas applications.

Corrosion Resistance: 

Stainless steel, PVC/CPVC, and coated carbon steel elbows resist humidity, salt spray, and chemical erosion.

Leak-Proof Joints: 

Precise machining ensures tight connections, preventing fluid leakage in critical systems.

Versatile Compatibility: 

Works with various pipe materials and connection types, adapting to diverse project needs.

Climate Adaptability: 

Performs reliably in extreme temperatures (desert heat, cold industrial environments) and humid/tropical conditions.

Standards & Certifications

Our Pipe Elbows comply with international and regional standards for global project approval:

  • International Standards: ASME B16.9, ASME B16.28, ASTM, DIN, EN, JIS
  • Material Standards: ASTM A234 (carbon/alloy steel), ASTM A403 (stainless steel)
  • Quality Certifications: ISO 9001, SGS, Material Test Certificates (MTC)
  • Regional Compliance: SASO (Middle East), SONCAP (Africa), SNI (Indonesia), TIS (Thailand), BIS (India)
  • All orders include compliance documents and pressure test reports for customs clearance.

Quick Selection Table

Application

Recommended Elbow Type

Key Specifications

Target Region

Oil&Gas Pipelines

Carbon Steel (ASTM A234 WPB) 90° LR

Size 2"-24", Schedule 40, butt-weld

Middle East, South Asia

Chemical Processing

Stainless Steel (316) 45°/90°

Size ½"-12", corrosion-resistant, socket-weld

All Regions

Municipal Water Systems

Carbon Steel Galvanized 90° SR

Size 4"-18", Schedule 30, threaded/butt-weld

Africa, Southeast Asia

Food&Beverage Sanitary Piping

Stainless Steel (304) 90° LR

Size 1"-6", 2B finish, butt-weld

All Regions

Regional Customs Document Checklist

Region

Mandatory Documents

Our Support

Middle East (GCC)

SASO Certificate, Certificate of Origin, MTC

Assist with SASO application (3-5 working days)

Africa (Nigeria/Kenya)

SONCAP Certificate, Form M (Nigeria), CoO

Support SONCAP registration and product testing

Southeast Asia (Indonesia/Thailand)

SNI/TIS Certificate, Customs Declaration, Pressure Test Reports

Coordinate with local agents for clearance

South America (Brazil/Argentina)

Certificate of Conformity, Import License, MTC

Provide Spanish/Portuguese bilingual documents

South Asia (India/Pakistan)

BIS Certificate (India), Import Permit, CoO

Assist with regional certification processes

Packaging & Shipping Guidelines

Packaging

  • Metal Elbows: Wrapped in waterproof film, packed in wooden crates or cartons, with foam padding to prevent scratches and deformation.
  • Bulk Orders: Secured with steel straps on wooden pallets for stability during transit.
  • Clear English labeling includes product type, size, angle, material, connection type, and batch number.

Shipping

  • Lead Time: Standard orders (≤500 units): 12-20 working days; Bulk orders (>500 units): 20-30 working days; Custom configurations: 15-25 working days.
  • Logistics Partners: Maersk, CMA CGM, Aramex, and regional carriers for inland delivery.
  • Delivery Coverage: Port-to-port, door-to-door for major cities, and delivery to manufacturing/construction sites.
  • Global Reach: Supply to all regions except Europe and the US, with tailored shipping solutions for each market.

RFQ Frequently Asked Questions & Answers

RFQ Question: Need 90° long radius carbon steel elbows for water pipelines—can they withstand tropical rains?

Answer: Our galvanized carbon steel elbows (ASTM A234 WPB) resist tropical humidity and rains. They’re Schedule 40 compliant, with leak-proof butt-weld connections.


RFQ Question: Can you supply custom-thickness alloy steel elbows for high-temperature industrial use?

Answer: Yes, we offer custom-thickness alloy steel elbows (ASTM A234 WP5) for high-temperature applications. They withstand extreme heat.


RFQ Question: What’s the warranty for brass elbows used in HVAC systems? Lead time for small orders?

Answer: Our brass elbows come with a 2-year warranty against manufacturing defects, ideal for HVAC refrigerant lines. For small orders (≤100 units), delivery takes 10-15 working days with threaded connections.


RFQ Question: Need 180° short radius elbows for oil pipelines—can they handle high pressure? Lead time?

Answer: Our carbon steel 180° SR elbows (ASTM A234 WPB) are rated for high-pressure oil pipelines. They meet ASME B16.9 standards, with pressure testing reports included. Delivery takes 16-22 working days.