ASME B16.11 Threaded Elbow – Specification & Manufacturer
A Threaded Elbow (also known as Screwed Elbow) is a type of forged steel fitting manufactured according to ASME B16.11 standards. It is used in piping systems to change the flow direction by 45° or 90°, and comes with female threads that connect to male threaded pipes or fittings.
Threaded elbows are commonly used for small diameter, low to medium pressure applications
Specifications of ASME B16.11 Threaded Elbow
- Standard: ASME B16.11, MSS SP-79, BS 3799
- Size Range: ½” to 4” NB
- Pressure Ratings: Class 2000, 3000, 6000
- Types:
- 45° Threaded Elbow → for gradual directional change
- 90° Threaded Elbow → for sharp directional change
- Street Elbow (Male × Female threads) available
- Thread Types: BSP, BSPT, NPT threads
ASME B16.11 Threaded Elbow Materials Available
- Carbon Steel: ASTM A105 Thread Elbow, A350 LF2 Thread Elbow
- Stainless Steel: ASTM A182 F304, F304L, F316, F316L, F321, F347
- Alloy Steel: ASTM A182 F5, F9, F11, F22, F91
- Duplex / Super Duplex: UNS S31803, S32205, S32750
- Nickel Alloys: Inconel, Monel, Hastelloy, Alloy 20
ASME B16.11 Threaded Elbow Dimension
| Nominal Size | Center-to-End | Outside Diameter of Band | Wall Thickness | Length of Thread | |||||||
| DN | NPS | A | H | Gmin | L 5 min | L 2 min | |||||
| 90°Elbows | 45°Elbows | ||||||||||
| 3000 | 6000 | 3000 | 6000 | 3000 | 6000 | 3000 | 6000 | ||||
| 6 | 1/8 | 21 | 25 | 17 | 19 | 22 | 25 | 3.18 | 6.35 | 6.4 | 6.7 |
| 8 | 1/4 | 25 | 28 | 19 | 22 | 25 | 33 | 3.30 | 6.60 | 8.1 | 10.2 |
| 10 | 3/8 | 28 | 33 | 22 | 25 | 33 | 38 | 3.51 | 6.98 | 9.1 | 10.4 |
| 15 | 1/2 | 33 | 39 | 25 | 28 | 38 | 46 | 4.09 | 8.15 | 10.9 | 13.6 |
| 20 | 3/4 | 38 | 44 | 28 | 33 | 46 | 56 | 4.32 | 8.53 | 12.7 | 13.9 |
| 25 | 1 | 44 | 51 | 33 | 35 | 56 | 62 | 4.98 | 9.93 | 14.7 | 17.3 |
| 32 | 11/4 | 51 | 60 | 35 | 43 | 62 | 75 | 5.28 | 10.59 | 17.0 | 18.0 |
| 40 | 11/2 | 60 | 64 | 43 | 44 | 75 | 84 | 5.56 | 11.07 | 17.8 | 18.4 |
| 50 | 2 | 64 | 83 | 44 | 52 | 84 | 102 | 7.14 | 12.09 | 19 | 19.2 |
| 65 | 21/2 | 83 | 95 | 52 | 64 | 102 | 121 | 7.65 | 15.29 | 23.6 | 28.9 |
| 80 | 3 | 95 | 106 | 64 | 79 | 121 | 146 | 8.84 | 16.64 | 25.9 | 30.5 |
| 100 | 4 | 114 | 114 | 79 | 79 | 152 | 152 | 11.18 | 18.67 | 27.7 | 33 |
ASME B16.11 Forged Threaded Elbow Weight Chart in KG
| NOMINAL SIZE | 90 DEGREE THREADED ELBOW | 45 DEGREE THREADED ELBOW | |||||
| DN | NPS | 2000 | 3000 | 6000 | 2000 | 3000 | 6000 |
| 6 | 1/8 | 0.08 | 0.10 | 0.18 | 0.08 | 0.08 | 0.14 |
| 8 | 1/4 | 0.08 | 0.15 | 0.33 | 0.08 | 0.12 | 0.27 |
| 10 | 3/8 | 0.13 | 0.30 | 0.48 | 0.11 | 0.26 | 0.49 |
| 15 | 1/2 | 0.22 | 0.45 | 0.72 | 0.23 | 0.42 | 0.69 |
| 20 | 3/4 | 0.32 | 0.70 | 1.29 | 0.29 | 0.59 | 1.12 |
| 25 | 1 | 0.50 | 1.21 | 1.65 | 0.43 | 0.96 | 1.47 |
| 32 | 1-1/4 | 0.80 | 1.47 | 2.70 | 0.67 | 1.15 | 2.65 |
| 40 | 1-1/2 | 0.93 | 2.60 | 3.90 | 0.82 | 2.02 | 3.60 |
| 50 | 2 | 1.60 | 3.05 | 6.05 | 1.32 | 2.50 | 4.60 |
| 65 | 2-1/2 | 2.95 | 5.80 | 9.88 | 3.30 | 3.81 | 7.81 |
| 80 | 3 | 5.6 | 8.85 | 16.4 | 5.4 | 6.3 | 13.1 |
| 100 | 4 | 10.5 | 14.9 | 23.5 | 9.00 | 9.80 | 17.0 |
Advantages of Threaded Elbows
- Easy installation & disassembly – no welding required
- Ideal for low-cost, low-pressure piping systems
- Suitable for areas where welding is dangerous or restricted
- Compact and reliable connection
Download ASME B16.11-21 latest edition PDF
As a trusted manufacturer and supplier of ASME B16.11 Threaded Elbows in carbon steel, stainless steel, and alloy steel. Our threaded elbows are precision-forged, heat-treated, and machined to ensure leak-proof installation in high-pressure piping systems.
We supply 90-degree Threaded Elbows and 45-degree Threaded Elbows, available in Class 2000 / 3000 / 6000 threaded (NPT / BSP) ends based on ASME B1.20.1.
Related Products
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- ASME B16.11 Threaded Coupling
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- Carbon Steel A105 Forged Fittings
