Socket Weld & Threaded Elbow
Forged Elbow : Specifications | Materials | Types | Dimensions | Weight Chart | Tolerances | FAQ
ASME B16.11 Forged Elbow Fittings – 45° & 90° Socket Weld & Threaded Elbow Manufacturers, Suppliers & Exporters in Stainless Steel, Alloy Steel, Carbon Steel & High Nickel Alloys to Germany, Australia & Africa
Best Export Prices: sales@midlandforgefittings.com
At Midland Forge and Fittings Pvt. Ltd., we take pride in being a trusted manufacturer and supplier of high-quality forged fittings, specializing in ASME B16.11 Forged Elbows. We deliver precision-engineered socket-weld and threaded elbows that meet global standards. Our strong focus on quality, reliability, and customer satisfaction has enabled us to serve industries across international markets.
Forged Elbows are designed for seamless flow direction changes in piping systems, available in 45° and 90° configurations with socket weld and threaded ends. Manufactured in stainless, carbon, alloy steel, duplex, super duplex, and high nickel alloys, these fittings provide leak-proof joints, excellent pressure handling, and enhanced mechanical strength.
Available in sizes ranging from ½” to 4” (DN15 to DN100), with pressure ratings of 2000lb, 3000lb, 6000lb, and 9000lb, Midland Forge and Fittings’ elbows are engineered to withstand high pressure, elevated temperatures, and corrosive environments, making them the preferred choice for demanding industrial applications.
Our manufacturing process is built on a robust quality management system, integrating advanced forging techniques with stringent inspection and testing procedures. At Midland Forge and Fittings, every forged elbow undergoes dimensional accuracy checks, pressure testing, and metallurgical analysis to ensure consistency and performance. We maintain a structured workflow starting from raw material procurement, forging, heat treatment, machining, and finishing, to final dispatch. This structured approach allows us to guarantee on-time delivery, superior strength, and compliance with ASME, ASTM, and international standards.
Forged 45° & 90° Elbow Specifications
Threaded Elbow – Materials, Grades & Standards
| Material Category | Grade | Standards (ASTM / ASME) | Typical Use / Application |
|---|---|---|---|
| Stainless Steel | 304 / 304L / 304H | ASTM A182 F304 / F304L / F304H | General purpose, corrosion resistance |
| 316 / 316L / 316H | ASTM A182 F316 / F316L / F316H | Marine, chemical, and food processing | |
| 317 / 317L | ASTM A182 F317 / F317L | High corrosion resistance | |
| 321 / 321H | ASTM A182 F321 / F321H | High temperature, stabilized service | |
| 347 / 347H | ASTM A182 F347 / F347H | High-temp, pressure systems | |
| 904L | ASTM A182 F904L | Acid handling, sulfuric environments | |
| 254 SMO | ASTM A182 F44 | High chloride & seawater applications | |
| Carbon Steel | A105 | ASTM A105 | Pressure piping & general industries |
| A350 LF2 | ASTM A350 LF2 | Low temperature services | |
| A694 F42 / F46 / F52 / F56 / F60 / F65 / F70 | ASTM A694 | High-pressure pipelines, oil & gas | |
| Alloy Steel | F1 / F5 / F9 | ASTM A182 F1 / F5 / F9 | High-temp & pressure pipelines |
| F11 / F22 | ASTM A182 F11 / F22 | Steam lines & refineries | |
| F91 | ASTM A182 F91 | Power generation, high performance | |
| Duplex Steel | UNS S31803 / S32205 | ASTM A182 F51 / F60 | Corrosion resistance, high strength |
| Super Duplex Steel | UNS S32750 / S32760 | ASTM A182 F53 / F55 | Offshore, seawater applications |
| Nickel Alloys | Nickel 200 / 201 | ASTM B564 | Alkali & chemical processing |
| Inconel 600 / 625 / 718 | ASTM B564 | Heat exchangers, aerospace | |
| Incoloy 800 / 825 | ASTM B564 | Petrochemical & chemical processing | |
| Hastelloy C22 / C276 | ASTM B564 | Severe corrosion resistance | |
| Monel 400 / K500 | ASTM B564 | Seawater, marine engineering | |
| Alloy 20 | ASTM B564 | Sulfuric acid services | |
| Nimonic 75 / 80A | ASTM B564 / B637 | High-temp aerospace & turbines | |
| Copper Nickel | Cu-Ni 90/10 / 70/30 | ASTM B151 / B467 | Marine systems, seawater service |
| Titanium | Grade 2 / Grade 5 | ASTM B381 | Lightweight, corrosion resistance |
| Aluminium | 6061 / 5083 | ASTM B247 | Low-pressure, non-corrosive piping |
Types of ASME B16.11 Forged Elbow Fittings
Dimensions of ASME B16.11 Socket Weld 45° & 90° Elbow(Class 3000, 6000, 9000)
| Nominal Pipe Size (NPS) | Center to End A (90° Elbow) |
Center to End A (45° Elbow) |
3000 Class (Bore) |
6000 Class (Bore) |
9000 Class (Bore) |
|---|---|---|---|---|---|
| 1/8″ (DN 6) | 16 | 16 | 10 | 8 | 6 |
| 1/4″ (DN 8) | 19 | 19 | 13 | 10 | 8 |
| 3/8″ (DN 10) | 22 | 22 | 16 | 13 | 10 |
| 1/2″ (DN 15) | 28 | 28 | 21 | 16 | 13 |
| 3/4″ (DN 20) | 33 | 33 | 26 | 21 | 16 |
| 1″ (DN 25) | 38 | 38 | 33 | 26 | 21 |
| 1-1/4″ (DN 32) | 44 | 44 | 42 | 33 | 26 |
| 1-1/2″ (DN 40) | 51 | 51 | 48 | 38 | 33 |
| 2″ (DN 50) | 60 | 60 | 61 | 51 | 44 |
| 2-1/2″ (DN 65) | 67 | 67 | 74 | 64 | 57 |
| 3″ (DN 80) | 76 | 76 | 90 | 76 | 70 |
| 4″ (DN 100) | 86 | 86 | 115 | 102 | 92 |
Dimensions of ASME B16.11 Threaded 45° & 90° Elbow(Class 3000, 6000, 9000)
| Nominal Pipe Size (NPS) | Center to End A (90° Elbow) |
Center to End A (45° Elbow) |
3000 Class (Bore) |
6000 Class (Bore) |
9000 Class (Bore) |
|---|---|---|---|---|---|
| 1/8″ (DN 6) | 16 | 16 | 9 | 7 | 5 |
| 1/4″ (DN 8) | 19 | 19 | 12 | 9 | 7 |
| 3/8″ (DN 10) | 22 | 22 | 15 | 12 | 9 |
| 1/2″ (DN 15) | 28 | 28 | 20 | 15 | 12 |
| 3/4″ (DN 20) | 33 | 33 | 25 | 20 | 15 |
| 1″ (DN 25) | 38 | 38 | 32 | 25 | 20 |
| 1-1/4″ (DN 32) | 44 | 44 | 41 | 32 | 25 |
| 1-1/2″ (DN 40) | 51 | 51 | 47 | 37 | 32 |
| 2″ (DN 50) | 60 | 60 | 60 | 50 | 43 |
| 2-1/2″ (DN 65) | 67 | 67 | 73 | 63 | 56 |
| 3″ (DN 80) | 76 | 76 | 89 | 75 | 69 |
| 4″ (DN 100) | 86 | 86 | 114 | 101 | 91 |
Weight Chart: ASME B16.11 Forged Elbow (Class 3000, 6000, 9000)
| Size (Inch / NB) | Elbow Type | Class 3000 (kg) | Class 6000 (kg) | Class 9000 (kg) |
|---|---|---|---|---|
| 1/8″ (6 NB) | 90° Elbow | 0.04 | 0.05 | 0.07 |
| 45° Elbow | 0.03 | 0.04 | 0.05 | |
| 1/4″ (8 NB) | 90° Elbow | 0.06 | 0.09 | 0.12 |
| 45° Elbow | 0.05 | 0.07 | 0.10 | |
| 3/8″ (10 NB) | 90° Elbow | 0.10 | 0.15 | 0.20 |
| 45° Elbow | 0.07 | 0.12 | 0.16 | |
| 1/2″ (15 NB) | 90° Elbow | 0.16 | 0.24 | 0.32 |
| 45° Elbow | 0.12 | 0.18 | 0.24 | |
| 3/4″ (20 NB) | 90° Elbow | 0.30 | 0.45 | 0.60 |
| 45° Elbow | 0.20 | 0.30 | 0.40 | |
| 1″ (25 NB) | 90° Elbow | 0.45 | 0.70 | 0.95 |
| 45° Elbow | 0.35 | 0.55 | 0.75 | |
| 1 1/4″ (32 NB) | 90° Elbow | 0.75 | 1.15 | 1.55 |
| 45° Elbow | 0.55 | 0.85 | 1.20 | |
| 1 1/2″ (40 NB) | 90° Elbow | 1.10 | 1.65 | 2.20 |
| 45° Elbow | 0.80 | 1.20 | 1.60 | |
| 2″ (50 NB) | 90° Elbow | 1.80 | 2.70 | 3.60 |
| 45° Elbow | 1.35 | 2.00 | 2.70 | |
| 2 1/2″ (65 NB) | 90° Elbow | 3.10 | 4.65 | 6.20 |
| 45° Elbow | 2.40 | 3.60 | 4.80 | |
| 3″ (80 NB) | 90° Elbow | 4.80 | 7.20 | 9.60 |
| 45° Elbow | 3.60 | 5.40 | 7.20 | |
| 4″ (100 NB) | 90° Elbow | 8.20 | 12.30 | 16.40 |
| 45° Elbow | 6.10 | 9.15 | 12.20 |
Forged Elbow Tolerances as per ASME B16.11
| Parameter | Tolerance |
|---|---|
| Center-to-End (Dimension A or B) | ±1.5 mm (±0.06 in) |
| Overall Length | ±1.5 mm (±0.06 in) |
| Wall Thickness | Not less than 87.5% of nominal thickness |
| Internal Bore Diameter | ±0.4 mm (±0.016 in) |
| Socket Bore Diameter | +0.15 / –0.05 mm |
| Socket Depth | ±0.5 mm |
| Threaded Fittings (NPT) | As per ASME B1.20.1 |
| Out-of-Roundness | 1% of nominal outside diameter |
| Angularity (Elbow Bend) | ±1° |
What are the advantages of using forged elbows over cast or welded elbows?
- Higher Strength: Forging aligns the grain flow, increasing mechanical strength.
- Leak-Proof Joints: Butt-weld or socket-weld connections provide permanent sealing.
- Dimensional Accuracy: Tighter tolerances as per ASME standards.
- Pressure Handling: Can withstand higher pressures compared to cast fittings.
- Durability: Longer service life in aggressive environments.
- Safety: Reduced risk of failure in critical applications like oil & gas pipelines.
How do I select the right forged elbow for my application?
- Pipe Size & Schedule: Ensuring proper fit and wall thickness.
- Pressure Rating: Class 2000 / 3000 / 6000 / 9000 as per system pressure.
- Material: Based on fluid type (water, oil, gas, chemicals, steam, etc.).
- Connection Type: Socket weld, threaded, or butt-weld depending on assembly.
- Standards Compliance: Must conform to ASME, MSS, or BS standards for safety.
why forged elbow used in piping systems?
-
A forged elbow is a high-strength pipe fitting produced by forging steel under extreme pressure and heat, which makes it denser, tougher, and more reliable than cast fittings.
-
These elbows are primarily used to change the direction of fluid flow in piping systems, most commonly at 45° and 90° angles, ensuring smooth flow and minimal pressure loss.
-
They are widely used in industries such as oil & gas, petrochemicals, refineries, power generation, and offshore drilling due to their leak-proof integrity, high-pressure resistance, and long service life.