45 Degree Pipe Elbows
Product Introduction
Product Types
- Long Radius Elbow (LR, R=1.5D): Most common for general industrial pipelines
- Short Radius Elbow (SR, R=1D): Compact structure for limited mounting space
Applicable Standards
- ASME B16.9
- EN 10253
- GB/T 12459, GB/T 13401
- MSS SP-75
Available Materials
- Carbon Steel: A234 WPB, P245GH, Q235B
- Stainless Steel: A403 WP304, WP316L
- Alloy Steel: A234 WP11, WP22
Technical Specifications
- Size Range: 1/2” – 48” | DN15 – DN1200
- End Connection: Butt Weld(BW), Socket Weld(SW), NPT/BSP Threaded
- Pressure Rating: Class 150~Class 2500, PN6~PN160
Application Scope
Product Introduction
45 Degree Pipe Elbow is a mainstream piping fitting to change pipeline direction at 45°, featuring mild flow resistance compared with 90° elbows, widely used for gentle pipeline deflection.
Product Types
- Long Radius Elbow (LR, R=1.5D): Most common for general industrial pipelines
- Short Radius Elbow (SR, R=1D): Compact structure for limited mounting space
Applicable Standards
- ASME B16.9
- EN 10253
- GB/T 12459, GB/T 13401
- MSS SP-75
Available Materials
- Carbon Steel: A234 WPB, P245GH, Q235B
- Stainless Steel: A403 WP304, WP316L
- Alloy Steel: A234 WP11, WP22
Technical Specifications
- Size Range: 1/2” – 48” | DN15 – DN1200
- End Connection: Butt Weld(BW), Socket Weld(SW), NPT/BSP Threaded
- Pressure Rating: Class 150~Class 2500, PN6~PN160
Application Scope
Water treatment, petrochemical, HVAC, fire fighting, power plant and natural gas transmission pipelines. Custom-made 45° elbows according to drawings and special requirements are available.
Relate Ptoduct
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Concentric Reducer
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Eccentric Reducer
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90 Degree Pipe Elbows
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45 Degree Pipe Elbows
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180 degree pipe elbows
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Welding Flange
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Threaded Flange
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Socket Weld Flange
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Slip On Neck Flange
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Lap Joint Flange
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ISO DIN EN1092-1flange
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Flat-Face (FF) Flange
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Blind Flange
Specifications
| Item | Range |
|---|---|
| Size | 1/2″ – 48″ (DN15 – DN1200) |
| Wall thickness | SCH10 – SCH160, STD, XS, XXS |
| Standard | ASME B16.9 (>= 2″), B16.28 (small bore), DIN 2605, JIS B2311, GB/T 12459 |
| Materials | A234 WPB carbon, A420 WPL6 low-temp, A403 WP304/304L/316/316L stainless |
| Certificates | EN 10204 3.1 standard; 3.2 third-party inspection on request |
Applications of 45 Degree Elbows
45° elbows make gentle direction changes: offsetting a line around beams, aligning with equipment nozzles, building Z-shaped offsets (two 45s with a spacer), and gradual grade changes in gravity lines where sharp turns would trap solids. Because the flow turns only 45°, pressure drop is roughly half that of a 90° elbow – useful on long runs and pump discharge lines.
45° vs 90° Elbow – When to Use Which
Use 45° for offsets, gradual alignment and erosion-sensitive service (slurries, two-phase flow). Use 90° elbows for right-angle turns. A common combination: two 45° elbows with a spool piece create a lateral offset that no single fitting can achieve.
Ordering & Custom Options
Available seamless and welded, LR standard, in A234 WPB and stainless A403 grades, SCH10-SCH160. Custom angles and wall thicknesses manufactured to drawing. Every piece ships stamped with EN 10204 3.1 certificates. Request a quote with size, schedule and material.
FAQs
What is the take-out for a 45° elbow? Approximately 0.414 x NPS for LR fittings – welders use this value to cut pipe length for an offset. Exact values are in ASME B16.9 dimension tables.
Are 45° elbows available in short radius? 45° elbows are made in long radius only per B16.9 – the SR designation applies to 90° fittings.