The Essential Directional Change Component for Industrial Piping Systems
The Stainless Steel Butt-Weld Elbow is a fundamental fitting for changing flow direction in critical industrial pipelines. Whether you need a 90° long radius for gentle turns with minimal pressure loss, a 90° short radius for compact layouts, or a 45° long radius for gradual directional adjustments, our comprehensive range covers every requirement from DN10 to DN2000.
As part of our Butt-Weld Fittings family, these elbows are engineered for applications where strength, integrity, and longevity are non-negotiable – including oil & gas, petrochemical processing, power generation, and shipbuilding.
Understanding Elbow Types: Selecting the Right Configuration
| Elbow Type | Description | Best Application |
| 90° Long Radius (LR) | Center-to-face dimension = 1.5 x NPS | Standard for most applications; minimizes pressure loss and turbulence |
| 90° Short Radius (SR) | Center-to-face dimension = 1.0 x NPS | Space-constrained installations where compact layout is critical |
| 45° Long Radius | Gradual 45° directional change | Creating offsets, reducing flow resistance compared to sharper turns |
Engineering Excellence at Every Bend
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Seamless or Welded Construction: Available in seamless (for sizes up to DN600) or welded (for larger diameters) configurations, both manufactured to strict dimensional tolerances.
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Precision Bend Geometry: Manufactured to exacting standards ensuring consistent wall thickness throughout the bend – no thinning at the extrados.
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Smooth Internal Surface: Precision forming eliminates wrinkles and ensures optimal flow characteristics.
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Beveled Ends: Standard bevel preparation for immediate field welding.
Materials Engineered for Extreme Environments
| Material Grade | Key Properties | Typical Applications |
| 304/304L | Excellent corrosion resistance, good formability | General chemical, food processing, water treatment |
| 316/316L | Superior chloride resistance, higher strength | Marine, pharmaceutical, coastal facilities |
| Duplex 2205 | Twice the yield strength of 316L, excellent SCC resistance | Offshore platforms, desalination, sour service |
| Duplex 2507 | Super duplex, extreme corrosion and pitting resistance | Highly aggressive chemical, high-chloride environments |
Global Standard Compliance
All elbows are manufactured and tested to meet or exceed:
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ASME B16.9 – Factory-Made Wrought Butt-welding Fittings
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GB/T 12459-2005 – Seamless Butt-welding Pipe Fittings
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GB/T 13401-2005 – Plate-Formed Butt-welding Pipe Fittings
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DIN 2615 – Steel Butt-welding Pipe Fittings – Tees
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SH3408 / SH3409 / SH3410 – Petrochemical Industry Standards
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HG/T21635, DL/T695, SY/T0510 – Industry-Specific Standards
Cross-section Diagram
Specification Table
| Nominal Pipe Size (NPS) | Outside Diameter At Bevel D (mm) | Center to End(mm) | ||
| Long Radius Elbow | Short Radius Elbow | |||
| 90°(A) | 45°(B) | 90°(A) | ||
| 1/2 | 21.3 | 38.1 | 15.7 | – |
| 3/4 | 26.7 | 38.1 | 19.1 | – |
| 1 | 33.4 | 38.1 | 22.4 | 25.4 |
| 1-1/4 | 42.2 | 47.8 | 25.4 | 31.8 |
| 1-1/2 | 48.3 | 57.2 | 28.4 | 38.1 |
| 2 | 60.3 | 76.2 | 35.1 | 50.8 |
| 2-1/2 | 73 | 95.2 | 44.4 | 63.5 |
| 3 | 88.9 | 114.3 | 50.8 | 76.2 |
| 3-1/2 | 101.6 | 133.4 | 57.2 | 88.9 |
| 4 | 114.3 | 152.4 | 63.5 | 101.6 |
| 5 | 141.3 | 190.5 | 79.2 | 127 |
| 6 | 168.3 | 228.6 | 95.2 | 152.4 |
| 8 | 219.1 | 304.8 | 127 | 203.2 |
| 10 | 273.1 | 381 | 158.8 | 254 |
| 12 | 323.9 | 457.2 | 190.5 | 304.8 |
| 14 | 355.6 | 533.4 | 222.2 | 355.6 |
| 16 | 406.4 | 609.6 | 254 | 406.4 |
For complete dimensional data for all sizes (DN10–DN2000), download our Butt-Weld Elbows Technical Documentation.
Key Applications
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Oil & Gas: Pipeline direction changes, risers, manifold connections
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Petrochemical: Reactor feed lines, distillation column piping
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Power Generation: Boiler tubing, steam lines, cooling water systems
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Shipbuilding: Engine room piping, ballast systems, fuel lines
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Chemical Processing: Reactor jackets, transfer lines
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Offshore Platforms: Topside piping, subsea jumpers
Quality Assurance & Testing
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Material Traceability: Mill certificates provided for all raw materials
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Dimensional Inspection: 100% inspection to ASME B16.9 / GB/T12459 tolerances
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Non-Destructive Testing: RT/UT/PT/MT available upon request
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Mechanical Testing: Tensile strength, hardness, flattening tests per batch
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Chemical Analysis: Verification of material composition
Custom Options
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Special Materials: Other grades available upon request
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Non-Standard Dimensions: Custom bend angles and radii
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End Preparation: Beveled ends standard; special preparations available
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Marking: Laser marking per customer specification
