ASTM B366 Monel 400 / UNS N04400 Elbow 90 Degree Nickel Alloy Steel Buttweld Fitting
Overview:
Monel 400 buttweld elbows are crucial components in piping systems, especially in environments that demand resistance to corrosion and high temperatures. This alloy, primarily composed of nickel (67%) and copper (30%), is known for its impressive mechanical properties and resistance to various corrosive mediums, including acids and saltwater.
These elbows come in various sizes and angles, most commonly at 45° and 90° bends, enabling effective changes in the direction of piping without compromising flow consistency. The manufacturing process generally involves hot or cold working techniques, ensuring durability and reliability.
Monel 400's excellent weldability allows for seamless connections between pipes, minimizing the risk of leaks and reducing the need for additional fittings. This characteristic is vital for applications in marine, chemical processing, and oil and gas industries, where conventional materials would fail.
In terms of standards, Monel 400 buttweld elbows typically meet specifications set by ASTM B165 and B366, ensuring uniformity and quality in production. The material is also known for its resistance to stress corrosion cracking and ability to perform well at elevated temperatures, functioning effectively in both reducing and oxidizing environments.
Specification:
| Standard | ASTM B366 & Its equivalent ASME, DIN & EN Standard. |
| Grades | Monel 400; UNS N04400; DIN2.4360 |
| Size | 1/2''-48'' or custom size |
| Wall Thickness | SCH10S to SCH.XXS |
| Radius | SR/LR |
| End | Beveled End |
| Surface | Sand Blasting |
| Packing | Plywood case/Pallet |
Chemical Composition:
| UNS | Ni | Cu | Fe | Mn | C | Si | S |
| N04400 | 63.0 min | 28.0-34.0 | 2.5 max | 2.0 max | 0.3 max | 0.5 max | 0.024 max |
Mechanical Properties:
| UNS | Condition and Size | Tensile Strength min, ksi(Mpa) | Yield Strength min, ksi(Mpa) | Elongation in 2 in. or 50mm, min (%) |
| N04400 | Annealed: 5 in. (127mm) outside diameter and under | 70(480) | 28(195) | 35 |
| Annealed: Over 5 in. (127mm) outside diameter | 70(480) | 25(170) | 35 |
| Stress-Relieved: All Sizes | 85(585) | 55(380) | 15 |
Dimension:
  |
| Nominal Size | Outside Diameter at Bevel (mm) | Center to End (mm) |
| 90° Elbow | 45° Elbow |
| DN | NPS | O.D. | A | B |
| LR | SR | LR |
| 15 | 1/2 | 21.3 | 38 | ... | 16 |
| 20 | 3/4 | 26.7 | 38 | ... | 19 |
| 25 | 1 | 33.4 | 38 | 25 | 22 |
| 32 | 1 1/4 | 42.2 | 48 | 32 | 25 |
| 40 | 1 1/2 | 48.3 | 57 | 38 | 29 |
| 50 | 2 | 60.3 | 76 | 51 | 35 |
| 65 | 2 1/2 | 73.0 | 95 | 64 | 44 |
| 80 | 3 | 88.9 | 114 | 76 | 51 |
| 90 | 3 1/2 | 101.6 | 133 | 89 | 57 |
| 100 | 4 | 114.3 | 152 | 102 | 64 |
| 125 | 5 | 141.3 | 190 | 127 | 79 |
| 150 | 6 | 168.3 | 229 | 152 | 95 |
| 200 | 8 | 219.1 | 305 | 203 | 127 |
| 250 | 10 | 273.0 | 381 | 254 | 159 |
| 300 | 12 | 323.8 | 457 | 305 | 190 |
| 350 | 14 | 355.6 | 533 | 356 | 222 |
| 400 | 16 | 406.4 | 610 | 406 | 254 |
| 450 | 18 | 457.0 | 686 | 457 | 286 |
| 500 | 20 | 508.0 | 762 | 508 | 318 |
| 550 | 22 | 559.0 | 838 | 559 | 343 |
| 600 | 24 | 610.0 | 914 | 610 | 381 |
| 650 | 26 | 660.0 | 991 | 660 | 406 |
| 700 | 28 | 711.0 | 1067 | 711 | 438 |
| 750 | 30 | 762.0 | 1143 | 762 | 470 |
| 800 | 32 | 813.0 | 1219 | 813 | 502 |
| 850 | 34 | 864.0 | 1295 | 864 | 533 |
| 900 | 36 | 914.0 | 1372 | 914 | 565 |
| 950 | 38 | 965.0 | 1448 | 965 | 600 |
| 1000 | 40 | 1016.0 | 1524 | 1016 | 632 |
| 1050 | 42 | 1067.0 | 1600 | 1067 | 660 |
| 1100 | 44 | 1118.0 | 1676 | 1118 | 695 |
| 1150 | 46 | 1168.0 | 1753 | 1168 | 727 |
| 1200 | 48 | 1219.0 | 1829 | 1219 | 759 |
Notes:
1) Besides these, GB/T 10752, SH 3408, SH 3409, HG/T 21635, HG/T 21631, SY/T 0510, DL/T 695, EN 10253 etc.are also applied.
2) The elbow with NPS over 48 shall be made subject to the sizes agreed by purchaser and manufacturer. |
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ASTM B366 Monel 400 / UNS N04400 Elbow 90 Degree Nickel Alloy Steel Buttweld Fitting Images
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