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ASTM A234 WP11 B16.9 S/R 90DEG BW Alloy Steel Short Radius Butt Welding Elbow 90 Degree
Alloy steel fittings are alloyed with a range of alloys. The content of alloys determines the properties and corrosion resistance properties of the fitting. The higher the alloying elements greater are its properties. The fittings in this grade have primary alloys of iron and carbon. The high-strength fittings play a pivotal role in influencing the characteristics of the flow across stress-induced systems
Product Information
| Product Name | ASTM A234 WP11 B16.9 S/R 90DEG BW Alloy Steel Short Radius Butt Welding Elbow 90 Degree |
| Size Range | 1/2” to 48” |
| Wall Thickness | Sch10S Sch20 STD Sch40 XS Sch80 |
| Standards | ASTM A234 MSS SP-75 |
| Grade | WP11 |
| Manufacturing Standards | ASASME B16.9 |
| Coating | Black primer coating, hot dipped galvanization, zinc flake coating (electro-galvanization), rust inhibition oil or varnish coating. |
ASTM A234 Gr WP11 Material Chemical Composition (%)
| Si | S | Mn | P | C | Mo | Cr | Ni | Cu | |
| WP11 CL1 | 0.5-1 | 0.03 | 0.3-0.6 | 0.03 | 0.05-0.15 | 0.44-0.65 | 1-1.5 | ||
| WP11 CL2 | 0.5-1 | 0.04 | 0.3-0.8 | 0.04 | 0.05-0.2 | 0.44-0.65 | 1-1.5 | ||
| WP11 CL3 | 0.5-1 | 0.04 | 0.3-0.8 | 0.04 | 0.05-0.2 | 0.44-0.65 | 1-1.5 |
ASME B16.9 S/R Elbow Dimensions
The standard short-radius(S/R) elbows of ASME B16.9 are generally furnished in 90°. It makes a much sharper turn than does the long radius elbows. The center-to-end dimension is 1D radius which equals to 1 x NPS in inch unit. Conversely, the S/R elbow creates a rather large pressure drop inside the line and does not have the smooth flow characteristics the L/R elbow has.
| NPS | O.D mm inch | A mm inch |
| 1 | 33.4 1.32 | 25 1.00 |
| 1-1/4 | 42.2 1.66 | 32 1.25 |
| 1-1/2 | 48.3 1.90 | 38 1.50 |
| 2 | 60.3 2.38 | 51 2.00 |
| 2-1/2 | 73.0 2.88 | 64 2.50 |
| 3 | 88.9 3.50 | 76 3.00 |
| 3-1/2 | 101.6 4.00 | 89 3.50 |
| 4 | 114.3 4.50 | 102 4.00 |
| 5 | 141.3 5.56 | 127 5.00 |
| 6 | 168.3 6.62 | 152 6.00 |
| 8 | 219.1 8.62 | 203 8.00 |
| 10 | 273.0 10.75 | 254 10.00 |
| 12 | 323.8 12.75 | 305 12.00 |
| 14 | 355.6 14.00 | 356 14.00 |
| 16 | 406.4 16.00 | 406 16.00 |
| 18 | 457.0 18.00 | 457 18.00 |
| 20 | 508.0 20.00 | 508 20.00 |
| 22 | 559.0 22.00 | 559.0 22.00 |
| 24 | 610.0 24.00 | 610.0 24.00 |
*NPS: Nominal Pipe Size; O.D: Outside Diameter at Bevel; A: Center-to- End.
