Buttweld Short Stub End: Dimensions, Sizes, and Prices
Fortune Fittings Pvt. Ltd. is a premier manufacturer and supplier of industrial piping components, offering top-of-the-line Buttweld Short Stub End. These stub ends are vital elements in various industries, including oil and gas, petrochemicals, and power generation.
Short stub ends are specifically designed for low-pressure applications, intended to be welded directly onto the piping system. Our expertise lies in crafting high-quality short stub ends that ensure reliability and efficiency in any piping setup.
Fortune Fittings provides ANSI B16.9 Stub Ends in a diverse range of materials, including robust carbon steel and corrosion-resistant stainless steel. These materials are available in various sizes and thicknesses to accommodate different operational needs.
What sets our Buttweld Short Stub Ends apart is their precision engineering. We employ advanced manufacturing techniques to maintain strict tolerances, facilitating easy installation and ensuring a seamless flow of fluid or gas. This precision is crucial for maintaining the integrity of the piping system.
In addition to Short Stub Ends, Fortune Fittings offers a comprehensive range of piping components, including elbows, tees, reducers, and flanges. Our commitment to quality and customer satisfaction has made us a trusted partner for industries worldwide.
With a ready inventory of Buttweld Stub Ends in various sizes and dimensions, Fortune Fittings caters to a wide range of customer needs. Whether it’s 2mm or 8mm, our Short Stub Ends are engineered to deliver exceptional performance and reliability.
For detailed information on Buttweld Short Stub End sizes, prices, and dimensions, Fortune Fittings provides comprehensive resources, including charts and PDFs. Contact us today for all your piping component needs.
What is a Buttweld Short Stub End?
A Buttweld Short Stub End is a type of piping component used in industrial applications to terminate or cap off a pipeline. It is designed to be welded directly onto the piping system and is commonly used in low-pressure applications. The short stub end is shorter in length compared to its counterpart, the long stub end, and is typically used when space constraints are a concern or when a shorter length is sufficient for the application. It provides a secure and leak-proof seal when welded to the pipe, ensuring the integrity of the piping system.
Buttweld Short Stub End dimensions
The dimensions of a Buttweld Short Stub End play a crucial role in ensuring proper fit and functionality within a piping system.
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Materials Used in Buttweld Short Stub End
Buttweld Short Stub Ends are manufactured using various materials to ensure compatibility with different applications and environments. Common materials used include:
1. Carbon Steel: Known for its strength and durability, carbon steel is often used in industrial settings where high pressure and temperature conditions are present.
2. Stainless Steel: Stainless steel is valued for its corrosion resistance properties, making it suitable for applications where exposure to corrosive substances is a concern.
3. Alloy Steel: Alloy steel offers enhanced mechanical properties and is often chosen for applications requiring high strength and resistance to wear and tear.
4. Copper: Copper stub ends are used in specialized applications where its excellent conductivity and corrosion resistance properties are advantageous.
5. Brass: Brass stub ends are selected for applications where a combination of corrosion resistance, machinability, and aesthetics is desired.
The choice of material depends on factors such as the operating environment, fluid conveyed, and specific requirements of the piping system. Fortune Fittings Pvt. Ltd. offers Buttweld Short Stub Ends in a variety of materials to meet the diverse needs of their customers.
Applications of Buttweld Short Stub End
Buttweld Short Stub Ends find application in various industries and piping systems where their specific design and characteristics are advantageous. Some common applications include:
1. Low-Pressure Piping Systems: Short stub ends are often used in low-pressure piping systems where welding directly to the pipe is feasible and cost-effective.
2. Plumbing and HVAC Systems: These stub ends are suitable for plumbing and HVAC (Heating, Ventilation, and Air Conditioning) systems, providing a reliable connection between pipes of different sizes.
3. Process Industries: In process industries such as chemical plants, refineries, and pharmaceutical facilities, short stub ends are utilized for connecting pipes in process lines and utility systems.
4. Water Treatment Plants: Short stub ends are employed in water treatment plants for connecting pipes carrying water, chemicals, and other fluids, ensuring efficient flow and reliable operation.
5. Food and Beverage Industry: In the food and beverage industry, where hygiene and sanitation are critical, short stub ends are used to connect pipes in production lines and utility systems.
6. Petrochemical Industry: Short stub ends play a vital role in the petrochemical industry, facilitating the transfer of various fluids and gases in refining and processing operations.
7. Marine and Shipbuilding: These stub ends are utilized in marine and shipbuilding applications for piping systems aboard ships and offshore structures.
8. Pharmaceutical and Biotechnology: Short stub ends are employed in pharmaceutical and biotechnology facilities for sanitary connections in fluid transfer systems.
Overall, Buttweld Short Stub Ends offer a versatile and reliable solution for connecting pipes of different sizes in various industrial and commercial applications, ensuring seamless flow and efficient operation of piping systems. Fortune Fittings Pvt. Ltd. provides high-quality short stub ends tailored to meet the specific requirements of each application.
Purchase Buttweld Short Stub End
For detailed information on ASME B16.9 Buttweld Short Stub End, including types, weight chart, size chart, tolerance, and dimensions with drawings, click on your desired fittings. Need a quick quote or price list? CLICK HERE!
ASME B16.9 Buttweld Fittings Types and Applications
ASME B16.9 standards cover a wide range of buttweld fittings, including:
These fittings find applications across various industries, offering reliable performance and leak-free connections in critical piping systems.
Optimizing Your Piping System with Buttweld Fittings
Whether you’re in the chemical, fabrication, food processing, or power generation industry, choosing the right buttweld fittings is essential for optimizing your piping system’s performance. From stainless steel pipe fittings to butt weld pipe fittings, Fortune Fittings Pvt. Ltd. offers a comprehensive range of high-quality fittings to meet your specific requirements.
In conclusion, buttweld fittings play a crucial role in ensuring the efficiency and reliability of piping systems across industries. By understanding the types, materials, and applications of buttweld fittings, you can make informed decisions to optimize your piping infrastructure for long-term success.
For more information on buttweld fittings and other piping components, visit [Fortune Fittings Pvt. Ltd.] today!
Buttweld Dimensions
45°-90° LR and 3D ASME B16.9
| NPS | O.D.D | 90° LRA | 45° LRB | 90° 3DA | 45° 3DB |
| 1/2 | 21.3 | 38 | 16 | ||
| 3/4 | 26.7 | 38 | 19 | 57 | 24 |
| 1 | 33.4 | 38 | 22 | 76 | 31 |
| 1.1/4 | 42.2 | 48 | 25 | 95 | 39 |
| 1.1/2 | 48.3 | 57 | 29 | 114 | 47 |
| 2 | 60.3 | 76 | 35 | 152 | 63 |
| 2.1/2 | 73 | 95 | 44 | 190 | 79 |
| 3 | 88.9 | 114 | 51 | 229 | 95 |
| 3.1/2 | 101.6 | 133 | 57 | 267 | 111 |
| 4 | 114.3 | 152 | 64 | 305 | 127 |
| 5 | 141.3 | 190 | 79 | 381 | 157 |
| 6 | 168.3 | 229 | 95 | 457 | 189 |
| 8 | 219.1 | 305 | 127 | 610 | 252 |
| 10 | 273 | 381 | 159 | 762 | 316 |
| 12 | 323.8 | 457 | 190 | 914 | 378 |
| 14 | 355.6 | 533 | 222 | 1067 | 441 |
| 16 | 406.4 | 610 | 254 | 1219 | 505 |
| 18 | 457 | 686 | 286 | 1372 | 568 |
| 20 | 508 | 762 | 318 | 1524 | 632 |
| 22 | 559 | 838 | 343 | 1676 | 694 |
| 24 | 610 | 914 | 381 | 1829 | 757 |
| 26 | 660 | 991 | 406 | 1981 | 821 |
| 28 | 711 | 1067 | 438 | 2134 | 883 |
| 30 | 762 | 1143 | 470 | 2286 | 946 |
| 32 | 813 | 1219 | 502 | 2438 | 1010 |
| 34 | 864 | 1295 | 533 | 2591 | 1073 |
| 36 | 914 | 1372 | 565 | 2743 | 1135 |
| 38 | 965 | 1448 | 600 | 2896 | 1200 |
| 40 | 1016 | 1524 | 632 | 3048 | 1264 |
| 42 | 1067 | 1600 | 660 | 3200 | 1326 |
| 44 | 1118 | 1676 | 695 | 3353 | 1389 |
| 46 | 1168 | 1753 | 727 | 3505 | 1453 |
| 48 | 1219 | 1829 | 759 | 3658 | 1516 |
Dimensional Tolerances of Butt Weld Elbows 45° & 90° LR & 3D ASME B16.9
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameterat Bevel (D) | + 1.6– 0.8 | 1.6 | 1.6 | + 2.4– 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
| Center to End LR (A/B) | 2 | 2 | 2 | 2 |
| Center to End 3D (A/B) | 3 | 3 | 3 | 3 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameterat Bevel (D) | + 4– 3.2 | + 6.4– 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Inside Diameter at End | 3.2 | 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Center to End LR (A/B) | 2 | 2 | 3 | 5 |
| Center to End 3D (A/B) | 3 | 3 | 6 | 6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Dimensions Butt Weld Elbows
45°-90° LR and 3D ASME B16.9
| NPS | O.D.D | 90° LRA | 45° LRB | 90° 3DA | 45° 3DB |
| 1/2 | 21.3 | 38 | 16 | ||
| 3/4 | 26.7 | 38 | 19 | 57 | 24 |
| 1 | 33.4 | 38 | 22 | 76 | 31 |
| 1.1/4 | 42.2 | 48 | 25 | 95 | 39 |
| 1.1/2 | 48.3 | 57 | 29 | 114 | 47 |
| 2 | 60.3 | 76 | 35 | 152 | 63 |
| 2.1/2 | 73 | 95 | 44 | 190 | 79 |
| 3 | 88.9 | 114 | 51 | 229 | 95 |
| 3.1/2 | 101.6 | 133 | 57 | 267 | 111 |
| 4 | 114.3 | 152 | 64 | 305 | 127 |
| 5 | 141.3 | 190 | 79 | 381 | 157 |
| 6 | 168.3 | 229 | 95 | 457 | 189 |
| 8 | 219.1 | 305 | 127 | 610 | 252 |
| 10 | 273 | 381 | 159 | 762 | 316 |
| 12 | 323.8 | 457 | 190 | 914 | 378 |
| 14 | 355.6 | 533 | 222 | 1067 | 441 |
| 16 | 406.4 | 610 | 254 | 1219 | 505 |
| 18 | 457 | 686 | 286 | 1372 | 568 |
| 20 | 508 | 762 | 318 | 1524 | 632 |
| 22 | 559 | 838 | 343 | 1676 | 694 |
| 24 | 610 | 914 | 381 | 1829 | 757 |
| 26 | 660 | 991 | 406 | 1981 | 821 |
| 28 | 711 | 1067 | 438 | 2134 | 883 |
| 30 | 762 | 1143 | 470 | 2286 | 946 |
| 32 | 813 | 1219 | 502 | 2438 | 1010 |
| 34 | 864 | 1295 | 533 | 2591 | 1073 |
| 36 | 914 | 1372 | 565 | 2743 | 1135 |
| 38 | 965 | 1448 | 600 | 2896 | 1200 |
| 40 | 1016 | 1524 | 632 | 3048 | 1264 |
| 42 | 1067 | 1600 | 660 | 3200 | 1326 |
| 44 | 1118 | 1676 | 695 | 3353 | 1389 |
| 46 | 1168 | 1753 | 727 | 3505 | 1453 |
| 48 | 1219 | 1829 | 759 | 3658 | 1516 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameterat Bevel (D) | + 1.6– 0.8 | 1.6 | 1.6 | + 2.4– 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
| Center to End LR (A/B) | 2 | 2 | 2 | 2 |
| Center to End 3D (A/B) | 3 | 3 | 3 | 3 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameterat Bevel (D) | + 4– 3.2 | + 6.4– 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Inside Diameter at End | 3.2 | 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Center to End LR (A/B) | 2 | 2 | 3 | 5 |
| Center to End 3D (A/B) | 3 | 3 | 6 | 6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Butt Weld Elbows 90°-SR- ASME B16.9 
| NPS | O.D.D | cteA | NPS | O.D.D | cteA |
| 1 | 33.4 | 25 | 8 | 219.1 | 203 |
| 1.1/4 | 42.2 | 32 | 10 | 273 | 254 |
| 1.1/2 | 48.3 | 38 | 12 | 323.8 | 305 |
| 2 | 60.3 | 51 | 14 | 355.6 | 356 |
| 2.1/2 | 73 | 64 | 16 | 406.4 | 406 |
| 3 | 88.9 | 76 | 18 | 457 | 457 |
| 3.1/2 | 101.6 | 89 | 20 | 508 | 508 |
| 4 | 114.3 | 102 | 22 | 559 | 559 |
| 5 | 141.3 | 127 | 24 | 610 | 610 |
| 6 | 168.3 | 152 | – | – | – |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameterat Bevel (D) | + 1.6– 0.8 | 1.6 | 1.6 | + 2.4– 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
| cte (A) | 2 | 2 | 2 | 2 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameterat Bevel (D) | + 4– 3.2 | + 6.4– 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Inside Diameter at End | 3.2 | 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| cte (A) | 2 | 2 | 3 | 5 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Butt Weld Elbows 180° LR & SR ASME B16.9
| NPS | O.D. D | 180° LR | 180° SR | ||
| Center to Center O | Back toFace K | Center to Center O | Back toFace K | ||
| 1/2 | 21.3 | 76 | 48 | ||
| 3/4 | 26.7 | 76 | 51 | ||
| 1 | 33.4 | 76 | 56 | 51 | 41 |
| 1.1/4 | 42.2 | 95 | 70 | 64 | 52 |
| 1.1/2 | 48.3 | 114 | 83 | 76 | 62 |
| 2 | 60.3 | 152 | 106 | 102 | 81 |
| 2.1/2 | 73 | 190 | 132 | 127 | 100 |
| 3 | 88.9 | 229 | 159 | 152 | 121 |
| 3.1/2 | 101.6 | 267 | 184 | 178 | 140 |
| 4 | 114.3 | 305 | 210 | 203 | 159 |
| 5 | 141.3 | 381 | 262 | 254 | 197 |
| 6 | 168.3 | 457 | 313 | 305 | 237 |
| 8 | 219.1 | 610 | 414 | 406 | 313 |
| 10 | 273 | 762 | 518 | 508 | 391 |
| 12 | 323.8 | 914 | 619 | 610 | 467 |
| 14 | 355.6 | 1067 | 711 | 711 | 533 |
| 16 | 406.4 | 1219 | 813 | 813 | 610 |
| 18 | 457 | 1372 | 914 | 914 | 686 |
| 20 | 508 | 1524 | 1016 | 1016 | 762 |
| 22 | 559 | 1676 | 1118 | 1118 | 838 |
| 24 | 610 | 1829 | 1219 | 1219 | 914 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 |
| Outside Diameterat Bevel (D) | + 1.6– 0.8 | 1.6 | 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 |
| Center to Center (O) | 6 | 6 | 6 |
| Back to Face (K) | 6 | 6 | 6 |
| Nominal Pipe Size | 5 to 8 | 10 to 18 | 20 to 24 |
| Outside Diameterat Bevel (D) | + 2.4– 1.6 | + 4– 3.2 | + 6.4– 4.8 |
| Inside Diameter at End | 1.6 | 3.2 | 4.8 |
| Center to Center (O) | 6 | 10 | 10 |
| Back to Face (K) | 6 | 6 | 6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | ||
Butt Weld Elbows 180° LR & SR ASME B16.9
| NPS | O.D. D | 180° LR | 180° SR | ||
| Center to Center O | Back toFace K | Center to Center O | Back toFace K | ||
| 1/2 | 21.3 | 76 | 48 | ||
| 3/4 | 26.7 | 76 | 51 | ||
| 1 | 33.4 | 76 | 56 | 51 | 41 |
| 1.1/4 | 42.2 | 95 | 70 | 64 | 52 |
| 1.1/2 | 48.3 | 114 | 83 | 76 | 62 |
| 2 | 60.3 | 152 | 106 | 102 | 81 |
| 2.1/2 | 73 | 190 | 132 | 127 | 100 |
| 3 | 88.9 | 229 | 159 | 152 | 121 |
| 3.1/2 | 101.6 | 267 | 184 | 178 | 140 |
| 4 | 114.3 | 305 | 210 | 203 | 159 |
| 5 | 141.3 | 381 | 262 | 254 | 197 |
| 6 | 168.3 | 457 | 313 | 305 | 237 |
| 8 | 219.1 | 610 | 414 | 406 | 313 |
| 10 | 273 | 762 | 518 | 508 | 391 |
| 12 | 323.8 | 914 | 619 | 610 | 467 |
| 14 | 355.6 | 1067 | 711 | 711 | 533 |
| 16 | 406.4 | 1219 | 813 | 813 | 610 |
| 18 | 457 | 1372 | 914 | 914 | 686 |
| 20 | 508 | 1524 | 1016 | 1016 | 762 |
| 22 | 559 | 1676 | 1118 | 1118 | 838 |
| 24 | 610 | 1829 | 1219 | 1219 | 914 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 |
| Outside Diameterat Bevel (D) | + 1.6– 0.8 | 1.6 | 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 |
| Center to Center (O) | 6 | 6 | 6 |
| Back to Face (K) | 6 | 6 | 6 |
| Nominal Pipe Size | 5 to 8 | 10 to 18 | 20 to 24 |
| Outside Diameterat Bevel (D) | + 2.4– 1.6 | + 4– 3.2 | + 6.4– 4.8 |
| Inside Diameter at End | 1.6 | 3.2 | 4.8 |
| Center to Center (O) | 6 | 10 | 10 |
| Back to Face (K) | 6 | 6 | 6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | ||
Dimensions Butt Weld Straight Tees ASME B16.9
| NPS | O.D.D | Center to EndC | Center to EndM |
| 1/2 | 21.3 | 25 | 25 |
| 3/4 | 26.7 | 29 | 29 |
| 1 | 33.4 | 38 | 38 |
| 1.1/4 | 42.2 | 48 | 48 |
| 1.1/2 | 48.3 | 57 | 57 |
| 2 | 60.3 | 64 | 64 |
| 2.1/2 | 73 | 76 | 76 |
| 3 | 88.9 | 86 | 86 |
| 3.1/2 | 101.6 | 95 | 95 |
| 4 | 114.3 | 105 | 105 |
| 5 | 141.3 | 124 | 124 |
| 6 | 168.3 | 143 | 143 |
| 8 | 219.1 | 178 | 178 |
| 10 | 273 | 216 | 216 |
| 12 | 323.8 | 254 | 254 |
| 14 | 355.6 | 279 | 279 |
| 16 | 406.4 | 305 | 305 |
| 18 | 457 | 343 | 343 |
| 20 | 508 | 381 | 381 |
| 22 | 559 | 419 | 419 |
| 24 | 610 | 432 | 432 |
| 26 | 660 | 495 | 495 |
| 28 | 711 | 521 | 521 |
| 30 | 762 | 559 | 559 |
| 32 | 813 | 597 | 597 |
| 34 | 864 | 635 | 635 |
| 36 | 914 | 673 | 673 |
| 38 | 965 | 711 | 711 |
| 40 | 1016 | 749 | 749 |
| 42 | 1067 | 762 | 711 |
| 44 | 1118 | 813 | 762 |
| 46 | 1168 | 851 | 800 |
| 48 | 1219 | 889 | 838 |
| Nominal Pipe Size | 1/2to2.1/2 | 3to3.1/2 | 4 | 5to8 | 10to18 | 20to24 | 26to30 | 32to48 |
| Outside Diaat Bevel (D) | +1.6-0.8 | 1.6 | 1.6 | +2.4-1.6 | +4-3.2 | +6.4-4.8 | +6.4-4.8 | +6.4-4.8 |
| Inside Dia at End | 0.8 | 1.6 | 1.6 | 1.6 | 3.2 | 4.8 | +6.4-4.8 | +6.4-4.8 |
| Center to End (C / M) | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 |
| Wall Thk (t) | Not less than 87.5% of Nominal Wall Thickness | |||||||
Dimensions Butt Weld
Straight Tees ASME B16.9
| NPS | O.D.D | Center to EndC | Center to EndM |
| 1/2 | 21.3 | 25 | 25 |
| 3/4 | 26.7 | 29 | 29 |
| 1 | 33.4 | 38 | 38 |
| 1.1/4 | 42.2 | 48 | 48 |
| 1.1/2 | 48.3 | 57 | 57 |
| 2 | 60.3 | 64 | 64 |
| 2.1/2 | 73 | 76 | 76 |
| 3 | 88.9 | 86 | 86 |
| 3.1/2 | 101.6 | 95 | 95 |
| 4 | 114.3 | 105 | 105 |
| 5 | 141.3 | 124 | 124 |
| 6 | 168.3 | 143 | 143 |
| 8 | 219.1 | 178 | 178 |
| 10 | 273 | 216 | 216 |
| 12 | 323.8 | 254 | 254 |
| 14 | 355.6 | 279 | 279 |
| 16 | 406.4 | 305 | 305 |
| 18 | 457 | 343 | 343 |
| 20 | 508 | 381 | 381 |
| 22 | 559 | 419 | 419 |
| 24 | 610 | 432 | 432 |
| 26 | 660 | 495 | 495 |
| 28 | 711 | 521 | 521 |
| 30 | 762 | 559 | 559 |
| 32 | 813 | 597 | 597 |
| 34 | 864 | 635 | 635 |
| 36 | 914 | 673 | 673 |
| 38 | 965 | 711 | 711 |
| 40 | 1016 | 749 | 749 |
| 42 | 1067 | 762 | 711 |
| 44 | 1118 | 813 | 762 |
| 46 | 1168 | 851 | 800 |
| 48 | 1219 | 889 | 838 |
| Nominal Pipe Size | 1/2to2.1/2 | 3to3.1/2 | 4 | 5to8 | 10to18 | 20to24 | 26to30 | 32to48 |
| Outside Diaat Bevel (D) | +1.6-0.8 | 1.6 | 1.6 | +2.4-1.6 | +4-3.2 | +6.4-4.8 | +6.4-4.8 | +6.4-4.8 |
| Inside Dia at End | 0.8 | 1.6 | 1.6 | 1.6 | 3.2 | 4.8 | +6.4-4.8 | +6.4-4.8 |
| Center to End (C / M) | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 |
| Wall Thk (t) | Not less than 87.5% of Nominal Wall Thickness | |||||||
Butt Weld Reducers
Concentric and Eccentric ASME B16.9
| NPS | O.D.D | O.D.D1 | LengthH |
| 3/4 – 1/2 | 26.7 | 21.3 | 38 |
| 1 – 1/2 | 33.4 | 21.3 | 51 |
| 1 – 3/4 | 33.4 | 26.7 | 51 |
| 1.1/4 – 1/2 | 42.2 | 21.3 | 51 |
| 1.1/4 – 3/4 | 42.2 | 26.7 | 51 |
| 1.1/4 – 1 | 42.2 | 33.4 | 51 |
| 1.1/2 – 1/2 | 48.3 | 21.3 | 64 |
| 1.1/2 – 3/4 | 48.3 | 26.7 | 64 |
| 1.1/2 – 1 | 48.3 | 33.4 | 64 |
| 1.1/2 – 1.1/4 | 48.3 | 42.2 | 64 |
| 2 – 3/4 | 60.3 | 26.7 | 76 |
| 2 – 1 | 60.3 | 33.4 | 76 |
| 2 – 1.1/4 | 60.3 | 42.2 | 76 |
| 2 – 1.1/2 | 60.3 | 48.3 | 76 |
| 2.1/2 – 1 | 73 | 33.4 | 89 |
| 2.1/2 – 1.1/4 | 73 | 42.2 | 89 |
| 2.1/2 – 1.1/2 | 73 | 48.3 | 89 |
| 2.1/2 – 2 | 73 | 60.3 | 89 |
| 3 – 1.1/4 | 88.9 | 42.2 | 89 |
| 3 – 1.1/2 | 88.9 | 48.3 | 89 |
| 3 – 2 | 88.9 | 60.3 | 89 |
| 3 – 2.1/2 | 88.9 | 73 | 89 |
| 3.1/2 – 1.1/4 | 101.6 | 42.2 | 102 |
| 3.1/2 – 1.1/2 | 101.6 | 48.3 | 102 |
| 3.1/2 – 2 | 101.6 | 60.3 | 102 |
| 3.1/2 – 2.1/2 | 101.6 | 73 | 102 |
| 3.1/2 – 3 | 101.6 | 88.9 | 102 |
| 4 – 1.1/2 | 114.3 | 48.3 | 102 |
| 4 – 2 | 114.3 | 60.3 | 102 |
| 4 – 2.1/2 | 114.3 | 73 | 102 |
| 4 – 3 | 114.3 | 88.9 | 102 |
| 4 – 3.1/2 | 114.3 | 101.6 | 102 |
| 5 – 2 | 141.3 | 60.3 | 127 |
| 5 – 2.1/2 | 141.3 | 73 | 127 |
| 5 – 3 | 141.3 | 88.9 | 127 |
| 5 – 3.1/2 | 141.3 | 101.6 | 127 |
| 5 – 4 | 141.3 | 114.3 | 127 |
| 6 – 2.1/2 | 168.3 | 73 | 140 |
| 6 – 3 | 168.3 | 88.9 | 140 |
| 6 – 3.1/2 | 168.3 | 101.6 | 140 |
| 6 – 4 | 168.3 | 114.3 | 140 |
| 6 – 5 | 168.3 | 141.3 | 140 |
| 8 – 3.1/2 | 219.1 | 101.6 | 152 |
| 8 – 4 | 219.1 | 114.3 | 152 |
| 8 – 5 | 219.1 | 141.3 | 152 |
| 8 – 6 | 219.1 | 168.3 | 152 |
| 10 – 4 | 273 | 114.3 | 178 |
| 10 – 5 | 273 | 141.3 | 178 |
| 10 – 6 | 273 | 168.3 | 178 |
| 10 – 8 | 273 | 219.1 | 178 |
| 12 – 5 | 323.9 | 141.3 | 203 |
| 12 – 6 | 323.9 | 168.3 | 203 |
| 12 – 8 | 323.9 | 219.1 | 203 |
| 12 – 10 | 323.9 | 273 | 203 |
| 14 – 6 | 355.6 | 168.3 | 330 |
| 14 – 8 | 355.6 | 219.1 | 330 |
| 14 – 10 | 355.6 | 273 | 330 |
| 14 – 12 | 355.6 | 323.9 | 330 |
| 16 – 8 | 406.4 | 219 | 356 |
| 16 – 10 | 406.4 | 273 | 356 |
| 16 – 12 | 406.4 | 323.9 | 356 |
| 16 – 14 | 406.4 | 355.6 | 356 |
| 18 – 10 | 457 | 273 | 381 |
| 18 – 12 | 457 | 323.9 | 381 |
| 18 – 14 | 457 | 355.6 | 381 |
| 18 – 16 | 457 | 406.4 | 381 |
| 20 – 12 | 508 | 323.9 | 508 |
| 20 – 14 | 508 | 355.6 | 508 |
| 20 – 16 | 508 | 406.4 | 508 |
| 20 – 18 | 508 | 457 | 508 |
| 22 – 14 | 559 | 355.6 | 508 |
| 22 – 16 | 559 | 406.4 | 508 |
| 22 – 18 | 559 | 457 | 508 |
| 22 – 20 | 559 | 508 | 508 |
| 24 – 16 | 610 | 406.4 | 508 |
| 24 – 18 | 610 | 457 | 508 |
| 24 – 20 | 610 | 508 | 508 |
| 24 – 22 | 610 | 559 | 508 |
| 26 – 18 | 660 | 457 | 610 |
| 26 – 20 | 660 | 508 | 610 |
| 26 – 22 | 660 | 559 | 610 |
| 26 – 24 | 660 | 610 | 610 |
| 28 – 18 | 711 | 457 | 610 |
| 28 – 20 | 711 | 508 | 610 |
| 28 – 24 | 711 | 610 | 610 |
| 28 – 26 | 711 | 660 | 610 |
| 30 – 20 | 762 | 508 | 610 |
| 30 – 24 | 762 | 610 | 610 |
| 30 – 26 | 762 | 660 | 610 |
| 30 – 28 | 762 | 711 | 610 |
| 32 – 24 | 813 | 610 | 610 |
| 32 – 26 | 813 | 660 | 610 |
| 32 – 28 | 813 | 711 | 610 |
| 32 – 30 | 813 | 762 | 610 |
| 34 – 24 | 864 | 610 | 610 |
| 34 – 26 | 864 | 660 | 610 |
| 34 – 30 | 864 | 762 | 610 |
| 34 – 32 | 864 | 813 | 610 |
| 36 – 24 | 914 | 610 | 610 |
| 36 – 26 | 914 | 660 | 610 |
| 36 – 30 | 914 | 762 | 610 |
| 36 – 32 | 914 | 813 | 610 |
| 36 – 34 | 914 | 864 | 610 |
| 38 – 26 | 965 | 660 | 610 |
| 38 – 28 | 965 | 711 | 610 |
| 38 – 30 | 965 | 762 | 610 |
| 38 – 32 | 965 | 813 | 610 |
| 38 – 34 | 965 | 864 | 610 |
| 38 – 36 | 965 | 914 | 610 |
| 40 – 30 | 1016 | 762 | 610 |
| 40 – 32 | 1016 | 813 | 610 |
| 40 – 34 | 1016 | 864 | 610 |
| 40 – 36 | 1016 | 914 | 610 |
| 40 – 38 | 1016 | 965 | 610 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameter at Bevel (D) | + 1.6– 0.8 | 1.6 | 1.6 | + 2.4– 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
| Overall Length (H) | 2 | 2 | 2 | 2 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameter at Bevel (D) | + 4– 3.2 | + 6.4– 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Inside Diameter at End | 3.2 | 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Overall Length (H) | 2 | 2 | 5 | 5 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Butt Weld Reducers
Concentric and Eccentric ASME B16.9
| NPS | O.D.D | O.D.D1 | LengthH |
| 3/4 – 1/2 | 26.7 | 21.3 | 38 |
| 1 – 1/2 | 33.4 | 21.3 | 51 |
| 1 – 3/4 | 33.4 | 26.7 | 51 |
| 1.1/4 – 1/2 | 42.2 | 21.3 | 51 |
| 1.1/4 – 3/4 | 42.2 | 26.7 | 51 |
| 1.1/4 – 1 | 42.2 | 33.4 | 51 |
| 1.1/2 – 1/2 | 48.3 | 21.3 | 64 |
| 1.1/2 – 3/4 | 48.3 | 26.7 | 64 |
| 1.1/2 – 1 | 48.3 | 33.4 | 64 |
| 1.1/2 – 1.1/4 | 48.3 | 42.2 | 64 |
| 2 – 3/4 | 60.3 | 26.7 | 76 |
| 2 – 1 | 60.3 | 33.4 | 76 |
| 2 – 1.1/4 | 60.3 | 42.2 | 76 |
| 2 – 1.1/2 | 60.3 | 48.3 | 76 |
| 2.1/2 – 1 | 73 | 33.4 | 89 |
| 2.1/2 – 1.1/4 | 73 | 42.2 | 89 |
| 2.1/2 – 1.1/2 | 73 | 48.3 | 89 |
| 2.1/2 – 2 | 73 | 60.3 | 89 |
| 3 – 1.1/4 | 88.9 | 42.2 | 89 |
| 3 – 1.1/2 | 88.9 | 48.3 | 89 |
| 3 – 2 | 88.9 | 60.3 | 89 |
| 3 – 2.1/2 | 88.9 | 73 | 89 |
| 3.1/2 – 1.1/4 | 101.6 | 42.2 | 102 |
| 3.1/2 – 1.1/2 | 101.6 | 48.3 | 102 |
| 3.1/2 – 2 | 101.6 | 60.3 | 102 |
| 3.1/2 – 2.1/2 | 101.6 | 73 | 102 |
| 3.1/2 – 3 | 101.6 | 88.9 | 102 |
| 4 – 1.1/2 | 114.3 | 48.3 | 102 |
| 4 – 2 | 114.3 | 60.3 | 102 |
| 4 – 2.1/2 | 114.3 | 73 | 102 |
| 4 – 3 | 114.3 | 88.9 | 102 |
| 4 – 3.1/2 | 114.3 | 101.6 | 102 |
| 5 – 2 | 141.3 | 60.3 | 127 |
| 5 – 2.1/2 | 141.3 | 73 | 127 |
| 5 – 3 | 141.3 | 88.9 | 127 |
| 5 – 3.1/2 | 141.3 | 101.6 | 127 |
| 5 – 4 | 141.3 | 114.3 | 127 |
| 6 – 2.1/2 | 168.3 | 73 | 140 |
| 6 – 3 | 168.3 | 88.9 | 140 |
| 6 – 3.1/2 | 168.3 | 101.6 | 140 |
| 6 – 4 | 168.3 | 114.3 | 140 |
| 6 – 5 | 168.3 | 141.3 | 140 |
| 8 – 3.1/2 | 219.1 | 101.6 | 152 |
| 8 – 4 | 219.1 | 114.3 | 152 |
| 8 – 5 | 219.1 | 141.3 | 152 |
| 8 – 6 | 219.1 | 168.3 | 152 |
| 10 – 4 | 273 | 114.3 | 178 |
| 10 – 5 | 273 | 141.3 | 178 |
| 10 – 6 | 273 | 168.3 | 178 |
| 10 – 8 | 273 | 219.1 | 178 |
| 12 – 5 | 323.9 | 141.3 | 203 |
| 12 – 6 | 323.9 | 168.3 | 203 |
| 12 – 8 | 323.9 | 219.1 | 203 |
| 12 – 10 | 323.9 | 273 | 203 |
| 14 – 6 | 355.6 | 168.3 | 330 |
| 14 – 8 | 355.6 | 219.1 | 330 |
| 14 – 10 | 355.6 | 273 | 330 |
| 14 – 12 | 355.6 | 323.9 | 330 |
| 16 – 8 | 406.4 | 219 | 356 |
| 16 – 10 | 406.4 | 273 | 356 |
| 16 – 12 | 406.4 | 323.9 | 356 |
| 16 – 14 | 406.4 | 355.6 | 356 |
| 18 – 10 | 457 | 273 | 381 |
| 18 – 12 | 457 | 323.9 | 381 |
| 18 – 14 | 457 | 355.6 | 381 |
| 18 – 16 | 457 | 406.4 | 381 |
| 20 – 12 | 508 | 323.9 | 508 |
| 20 – 14 | 508 | 355.6 | 508 |
| 20 – 16 | 508 | 406.4 | 508 |
| 20 – 18 | 508 | 457 | 508 |
| 22 – 14 | 559 | 355.6 | 508 |
| 22 – 16 | 559 | 406.4 | 508 |
| 22 – 18 | 559 | 457 | 508 |
| 22 – 20 | 559 | 508 | 508 |
| 24 – 16 | 610 | 406.4 | 508 |
| 24 – 18 | 610 | 457 | 508 |
| 24 – 20 | 610 | 508 | 508 |
| 24 – 22 | 610 | 559 | 508 |
| 26 – 18 | 660 | 457 | 610 |
| 26 – 20 | 660 | 508 | 610 |
| 26 – 22 | 660 | 559 | 610 |
| 26 – 24 | 660 | 610 | 610 |
| 28 – 18 | 711 | 457 | 610 |
| 28 – 20 | 711 | 508 | 610 |
| 28 – 24 | 711 | 610 | 610 |
| 28 – 26 | 711 | 660 | 610 |
| 30 – 20 | 762 | 508 | 610 |
| 30 – 24 | 762 | 610 | 610 |
| 30 – 26 | 762 | 660 | 610 |
| 30 – 28 | 762 | 711 | 610 |
| 32 – 24 | 813 | 610 | 610 |
| 32 – 26 | 813 | 660 | 610 |
| 32 – 28 | 813 | 711 | 610 |
| 32 – 30 | 813 | 762 | 610 |
| 34 – 24 | 864 | 610 | 610 |
| 34 – 26 | 864 | 660 | 610 |
| 34 – 30 | 864 | 762 | 610 |
| 34 – 32 | 864 | 813 | 610 |
| 36 – 24 | 914 | 610 | 610 |
| 36 – 26 | 914 | 660 | 610 |
| 36 – 30 | 914 | 762 | 610 |
| 36 – 32 | 914 | 813 | 610 |
| 36 – 34 | 914 | 864 | 610 |
| 38 – 26 | 965 | 660 | 610 |
| 38 – 28 | 965 | 711 | 610 |
| 38 – 30 | 965 | 762 | 610 |
| 38 – 32 | 965 | 813 | 610 |
| 38 – 34 | 965 | 864 | 610 |
| 38 – 36 | 965 | 914 | 610 |
| 40 – 30 | 1016 | 762 | 610 |
| 40 – 32 | 1016 | 813 | 610 |
| 40 – 34 | 1016 | 864 | 610 |
| 40 – 36 | 1016 | 914 | 610 |
| 40 – 38 | 1016 | 965 | 610 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameter at Bevel (D) | + 1.6– 0.8 | 1.6 | 1.6 | + 2.4– 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
| Overall Length (H) | 2 | 2 | 2 | 2 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameter at Bevel (D) | + 4– 3.2 | + 6.4– 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Inside Diameter at End | 3.2 | 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Overall Length (H) | 2 | 2 | 5 | 5 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Dimensions Butt Weld Caps ASME B16.9 
| NPS | O.D. D | Length H | Length H(1) |
| 1/2 | 21.3 | 25 | 25 |
| 3/4 | 26.7 | 25 | 25 |
| 1 | 33.4 | 38 | 38 |
| 1.1/4 | 42.2 | 38 | 38 |
| 1.1/2 | 48.3 | 38 | 38 |
| 2 | 60.3 | 38 | 44 |
| 2.1/2 | 73 | 38 | 51 |
| 3 | 88.9 | 51 | 64 |
| 3.1/2 | 101.6 | 64 | 76 |
| 4 | 114.3 | 64 | 76 |
| 5 | 141.3 | 76 | 89 |
| 6 | 168.3 | 89 | 102 |
| 8 | 219.1 | 102 | 127 |
| 10 | 273 | 127 | 152 |
| 12 | 323.8 | 152 | 178 |
| 14 | 355.6 | 165 | 191 |
| 16 | 406.4 | 178 | 203 |
| 18 | 457 | 203 | 229 |
| 20 | 508 | 229 | 254 |
| 22 | 559 | 254 | 254 |
| 24 | 610 | 267 | 305 |
| 26 | 660 | 267 | – |
| 28 | 711 | 267 | – |
| 30 | 762 | 267 | – |
| 32 | 813 | 267 | – |
| 34 | 864 | 237 | – |
| 36 | 914 | 267 | – |
| 38 | 965 | 305 | – |
| 40 | 1016 | 305 | – |
| 42 | 1067 | 305 | – |
| 44 | 1118 | 343 | – |
| 46 | 1168 | 343 | – |
| 48 | 1219 | 343 | – |
- Dimensions are in millimeters unless otherwise indicated.
- Wall thickness (t) must be specified by customer.
- The shape shall be ellipsoidal and shall conform to the requirements given in the ASME Boiler and Pressure Vessel Code.
- Length (H) applies for thickness not exceeding that given in column “Wall Thickness” for Length, H.
- Length (H1) applies for thickness greater than that given in column “Wall Thickness” for NPS 24 and smaller. For NPS 26 and larger, length H1 shall be by agreement between the manufacturerand purchaser.
Dimensional Tolerances of End Caps ASME B16.9
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameterat Bevel (D) | + 1.6– 0.8 | 1.6 | 1.6 | + 2.4– 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
| Overall Length (H) | 3 | 3 | 3 | 6 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameterat Bevel (D) | + 4– 3.2 | + 6.4– 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Inside Diameter at End | 3.2 | 4.8 | + 6.4– 4.8 | + 6.4– 4.8 |
| Overall Length (H) | 6 | 6 | 10 | 10 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Weights of Buttweld Caps
| NPS | STD | XS | SCH 160 | XXS |
| 1 | 0.09 | 0.14 | 0.18 | 0.23 |
| 1.1/4 | 0.14 | 0.18 | 0.23 | 0.34 |
| 1.1/2 | 0.18 | 0.23 | 0.27 | 0.41 |
| 2 | 0.27 | 0.34 | 0.57 | 0.68 |
| 2.1/2 | 0.41 | 0.45 | 0.79 | 1.13 |
| 3 | 0.68 | 0.79 | 1.32 | 1.81 |
| 3.1/2 | 0.91 | 1.13 | – | 2.72 |
| 4 | 1.13 | 1.36 | 2.68 | 3.4 |
| 5 | 2.04 | 2.49 | 4.54 | 5.44 |
| 6 | 2.95 | 4.08 | 6.8 | 8.16 |
| 8 | 5.44 | 7.26 | 14.06 | 13.61 |
| 10 | 9.07 | 11.34 | 25.85 | – |
| 12 | 13.61 | 16.33 | 43.09 | – |
| 14 | 16.33 | 20.41 | – | – |
| 16 | 18.14 | 24.49 | – | – |
| 18 | 24.49 | 32.66 | – | – |
| 20 | 34.02 | 39.01 | – | – |
| 22 | 42.64 | 56.7 | – | – |
| 24 | 43.54 | 58.97 | – | – |
| 26 | 53.98 | 72.12 | – | – |
| 30 | 78.02 | 103.87 | – | – |
Buttweld Fitting Weights
ASME buttweld fitting specifications do not specify weights for fittings. Weights quoted in the table on this page are based on manufacturers information and should be considered as approximate and provided as a guide only (fitting weights can vary considerably between manufacturers due to differences in construction). Weights in these tables are taken from Hackney Ladish, Inc. Hackney Ladish, Inc. is one of the largest and most versatile fitting producers in the world. Hackney Ladish, Inc. is headquartered in Dallas, TX and operates 2 facilities containing 380,000 square feet of manufacturing.Dimensions Lap Joint Stub Ends schedule STD XS ASME B16.9 
| NPS | OD | T | G | F | R | kg |
| 1/2 | 21.3 | 2.77 | 34.9 | 76.2 | 3.18 | 0.16 |
| 3/4 | 26.7 | 2.87 | 42.9 | 76.2 | 3.18 | 0.23 |
| 1 | 33.4 | 3.38 | 50.8 | 101.6 | 3.18 | 0.29 |
| 1.1/4 | 42.2 | 3.56 | 63.5 | 101.6 | 4.76 | 0.45 |
| 1.1/2 | 48.3 | 3.68 | 73 | 101.6 | 6.35 | 0.54 |
| 2 | 60.3 | 3.91 | 92.1 | 152.4 | 7.94 | 1 |
| 2.1/2 | 73 | 5.16 | 104.8 | 152.4 | 7.94 | 1.5 |
| 3 | 88.9 | 5.49 | 127 | 152.4 | 9.53 | 2.1 |
| 3.1/2 | 101.6 | 5.74 | 139.7 | 152.4 | 9.53 | 2.5 |
| 4 | 114.3 | 6.02 | 157.2 | 152.4 | 11.11 | 3 |
| 5 | 141.3 | 6.55 | 185.7 | 203.2 | 11.11 | 5.4 |
| 6 | 168.3 | 7.11 | 215.9 | 203.2 | 12.70 | 7.3 |
| 8 | 219.1 | 8.18 | 269.9 | 203.2 | 12.70 | 11.6 |
| 10 | 273.1 | 9.27 | 323.9 | 254 | 12.70 | 18 |
| 12 | 323.9 | 9.53 | 381 | 254 | 12.70 | 21 |
| 14 | 355.6 | 9.53 | 412.8 | 304.8 | 12.70 | 28 |
| 16 | 406.4 | 9.53 | 469.9 | 304.8 | 12.70 | 34 |
| 18 | 457.2 | 9.53 | 533.4 | 304.8 | 12.70 | 39 |
| 20 | 508 | 9.53 | 584.2 | 304.8 | 12.70 | 44 |
| 24 | 609.6 | 9.53 | 692.2 | 304.8 | 12.70 | 57 |
| NPS | OD | T | G | F | R | kg |
| 1/2 | 21.3 | 3.73 | 34.9 | 76.2 | 3.18 | 0.2 |
| 3/4 | 26.7 | 3.91 | 42.9 | 76.2 | 3.18 | 0.3 |
| 1 | 33.4 | 4.55 | 50.8 | 101.6 | 3.18 | 0.4 |
| 1.1/4 | 42.2 | 4.85 | 63.5 | 101.6 | 4.76 | 0.6 |
| 1.1/2 | 48.3 | 5.08 | 73 | 101.6 | 6.35 | 0.7 |
| 2 | 60.3 | 5.54 | 92.1 | 152.4 | 7.94 | 1.4 |
| 2.1/2 | 73 | 7.01 | 104.8 | 152.4 | 7.94 | 2 |
| 3 | 88.9 | 7.62 | 127 | 152.4 | 9.53 | 2.9 |
| 3.1/2 | 101.6 | 8.08 | 139.7 | 152.4 | 9.53 | 3.4 |
| 4 | 114.3 | 8.56 | 157.2 | 152.4 | 11.11 | 4.1 |
| 5 | 141.3 | 9.53 | 185.7 | 203.2 | 11.11 | 7.5 |
| 6 | 168.3 | 10.97 | 215.9 | 203.2 | 12.70 | 10 |
| 8 | 219.1 | 12.70 | 269.9 | 203.2 | 12.70 | 16 |
| 10 | 273.1 | 12.70 | 323.9 | 254 | 12.70 | 24 |
| 12 | 323.9 | 12.70 | 381 | 254 | 12.70 | 29 |
| 14 | 355.6 | 12.70 | 412.8 | 304.8 | 12.70 | 38 |
| 16 | 406.4 | 12.70 | 469.9 | 304.8 | 12.70 | 43 |
| 18 | 457.2 | 12.70 | 533.4 | 304.8 | 12.70 | 49 |
| 20 | 508 | 12.70 | 584.2 | 304.8 | 12.70 | 63 |
| 24 | 609.6 | 12.70 | 692.2 | 304.8 | 12.70 | 76 |
Dimensional Tolerances of Stub Ends ASME B16.9
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 | 10 to 18 | 20 to 24 |
| Outside Diameter at Welding End (OD) | +1.6–0.8 | 1.6 | 1.6 | +2.29–1.6 | +4.06–3.05 | +6.35–4.83 |
| Overall Length (F) | 1.6 | 1.6 | 1.6 | 1.6 | 2 | 2 |
| Outside Diameter of Lap (G) | +0–0.76 | +0–0.76 | +0–0.76 | +0–0.76 | +0–1.6 | +0–1.6 |
| Thickness of Lap (T) | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 |
| Fillet Radius of Lap (R) | +0–0.76 | +0–0.76 | +0–1.6 | +0–1.6 | +0–1.6 | +0–1.6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||||
Dimensions butt welded Stub Ends
schedule 10S MSS SP-43 type A/B
| NPS | OD | T | G | F | R Type A | R Type B |
| 1/2 | 21.3 | 2.11 | 34.9 | 50.8 | 3.05 | 0.76 |
| 3/4 | 26.7 | 2.11 | 42.9 | 50.8 | 3.05 | 0.76 |
| 1 | 33.4 | 2.77 | 50.8 | 50.8 | 3.05 | 0.76 |
| 1.1/4 | 42.2 | 2.77 | 63.5 | 50.8 | 4.83 | 0.76 |
| 1.1/2 | 48.3 | 2.77 | 73 | 50.8 | 6.35 | 0.76 |
| 2 | 60.3 | 2.77 | 92.1 | 63.5 | 7.87 | 0.76 |
| 2.1/2 | 73 | 3.05 | 104.8 | 63.5 | 7.87 | 0.76 |
| 3 | 88.9 | 3.05 | 127 | 63.5 | 9.65 | 0.76 |
| 3.1/2 | 101.6 | 3.05 | 139.7 | 76.2 | 9.65 | 0.76 |
| 4 | 114.3 | 3.05 | 157.2 | 76.2 | 11.18 | 0.76 |
| 5 | 141.3 | 3.40 | 185.7 | 76.2 | 11.18 | 1.52 |
| 6 | 168.3 | 3.40 | 215.9 | 88.9 | 12.7 | 1.52 |
| 8 | 219.1 | 3.76 | 269.9 | 101.6 | 12.7 | 1.52 |
| 10 | 273.1 | 4.19 | 323.9 | 127 | 12.7 | 1.52 |
| 12 | 323.9 | 4.57 | 381 | 152.4 | 12.7 | 1.52 |
| 14 | 355.6 | 4.78 | 412.8 | 152.4 | 12.70 | 1.52 |
| 16 | 406.4 | 4.78 | 469.9 | 152.4 | 12.7 | 1.52 |
| 18 | 457.2 | 4.78 | 533.4 | 152.4 | 12.70 | 1.52 |
| 20 | 508 | 5.54 | 584.2 | 152.4 | 12.70 | 1.52 |
| 24 | 609.6 | 6.35 | 692.2 | 152.4 | 12.7 | 1.52 |
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 | 10 to 18 | 20 to 24 |
| Outside Diameter at Welding End (OD) | 0.8 | 0.8 | 0.8 | +1.6–0.8 | +2.29–0.76 | +3.05–0.76 |
| Overall Length (F) | 1.6 | 1.6 | 1.6 | 1.6 | 2 | 2 |
| Outside Diameter of Lap (G) | +0–0.76 | +0–0.76 | +0–0.76 | +0–0.76 | +0–1.6 | +0–1.6 |
| Thickness of Lap (T) | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 | +1.52–0 |
| Fillet Radius of Lap (R) | +0–0.76 | +0–0.76 | +0–1.6 | +0–1.6 | +0–1.6 | +0–1.6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||||
- Type A for Lap Joint Flanges
- Type B for Slip On Flanges
- MSS SP-43 only covers stainless steel buttweld fittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipe, as defined in ASME B36.19. The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 – NPS 24. Except with regard to the outside diameter at the bevel.