ASME B16.9 | 45° Long Radius & Short Radius Elbows | Butt-Welding Pipe Fittings
Elite 45° Buttweld Elbows are factory-made wrought fittings designed to change the direction of piping by 45 degrees while maintaining a smooth, welded connection to the adjoining pipe. They are available in long-radius and short-radius configurations, with dimensions, tolerances and manufacturing requirements according to applicable ASME B16.9 requirements.
45° elbows are widely used where a gradual directional change is required, including oil & gas pipelines, petrochemical plants, refineries, chemical processing, power generation and industrial piping systems.
| Parameter | Elite Specification | |
|---|---|---|
| Manufacturer | Elite | |
| Product | 45° Buttweld Elbow | |
| Primary Standard | ASME B16.9 | |
| Elbow Angle | 45° | |
| Configurations | Long Radius (LR) / Short Radius (SR) | |
| Nominal Size | NPS 1/2–48 | |
| End Connection | Butt Weld | |
| Construction | Seamless / Welded / Fabricated, as applicable | |
| Wall Thickness | Standard and special schedules / wall thicknesses | |
| Dimensions | ASME B16.9 | |
| Outside Diameter | To match applicable pipe OD | |
| Center-to-End | As specified by applicable B16.9 dimensional tables | |
| End Preparation | ASME B16.9 / project specified | |
| Heat Treatment | As required by material specification | |
| Surface Finish | Standard / customer specified | |
| Marking | Size, schedule, material, manufacturer and applicable identification | |
| Inspection | Visual, dimensional, material and NDE as specified | |
| Documentation | MTC, EN 10204 3.1/3.2, COC and inspection reports | |
| For a 45° long-radius elbow, the B16.9 dimensional table defines the B center-to-end dimension by NPS; the dimension is not changed simply by selecting a different pipe schedule. | ||
| Inspection | Availability |
|---|---|
| Visual Inspection | Standard |
| Dimensional Inspection | Standard |
| Material Verification | Standard |
| PMI | Available |
| UT | Available |
| MT / PT | Available |
| Radiographic Testing | As specified |
| Hardness Testing | As specified |
| Hydrostatic / Pressure Testing | Project specified |
| Chemical & Mechanical Testing | Per material specification |
| Third-Party Inspection | Available |
| EN 10204 3.1 / 3.2 | Available |
Carbon Steel
ASTM A234 WPB, WPC and applicable WPHY grades for pipeline and high-strength applications.
Low-Temperature Carbon Steel
ASTM A420 WPL3, WPL6 and applicable grades.
Stainless Steel
ASTM A403 WP304/304L, WP316/316L, WP321/321H, WP347/347H and other applicable grades.
Duplex & Super Duplex
ASTM A815 UNS S31803, S32205, S32750, S32760 and applicable grades.
Alloy Steel
ASTM A234 WP1, WP5, WP9, WP11, WP12, WP22, WP91 and applicable grades.
Nickel Alloys
ASTM B366 grades including Nickel 200/201, Monel 400/K500, Inconel 600/601/625/800/825, Hastelloy C276 and Alloy 20.
Copper-Nickel & Titanium
UNS C70600, C71500 and applicable titanium grades according to project requirements.
Material selection is based on operating pressure, temperature, process fluid, corrosion conditions, mechanical requirements and applicable project specifications.
45° Long Radius Elbow
The standard 45° long-radius configuration provides a gradual directional change with reduced flow disturbance compared with tighter-radius configurations. ASME B16.9 provides dimensional tables for 45° LR elbows. s
45° Short Radius Elbow
A compact 45° configuration used where installation space is limited and the project piping design permits a shorter bend radius.
Seamless 45° Elbow
Manufactured from seamless pipe or billet for applications requiring seamless construction.
Welded 45° Elbow
Manufactured from welded material where permitted by the applicable material specification and project requirements.
Fabricated 45° Elbow
Custom-fabricated elbows for large diameters, special wall thicknesses, non-standard geometry or project-specific requirements.
Elite can manufacture 45° Elbows according to customer drawings and project requirements, including:
Industries
Applications
Please provide:
Size + Angle + LR/SR + Schedule / Wall Thickness + Material + Seamless/Welded/Fabricated + Quantity + Inspection + Documentation
Example:
6″ 45° Long Radius Buttweld Elbow, ASME B16.9, ASTM A234 WPB, SCH 40, seamless, bevel ends, EN 10204 3.1, PMI.
