ASME B16.5 ASTM B564 Alloy 625 WNRTJ Flange SCH120 6“ 1500#
- PRODUCT DETAIL
Type: Alloy 625 WNRTJ Flange
Material: Inconel 625 (UNS NO6625/W.Nr. 2.4856)
Size: 6″ (DN150)
Class/Pressure: 1500#
Wall Thickness: SCH120
Standard: ASME B16.5
China Weld Neck Flange Manufacturer Yaang offers ASME B16.5 ASTM B564 Alloy 625 WNRTJ Flange, SCH120 6“ 1500#.
What is Inconel 625?
Alloy 625 is a high-strength, corrosion-resistant nickel-chromium-molybdenum alloy commonly used in the aerospace, chemical processing, marine and power generation industries. It is known for its excellent resistance to pitting, crevice corrosion and stress corrosion cracking, as well as its high strength and toughness at low and high temperatures.
A unique property of Alloy 625 is that it retains its strength and toughness at high temperatures, making it suitable for high-temperature environments such as jet engines and gas turbines. It also has good weldability and can be easily fabricated into a variety of shapes and components.
Alloy 625 is usually supplied in the annealed condition and can be hardened and strengthened by heat treatment. It is available in a variety of product forms, including sheet, strip, plate, bar, wire and forgings.
Equivalent Standard of Inconel 625
| STANDARD | UNS | WNR. | EN Werkstoffbezeichnung | Alloy |
| Inconel 625 | NO6625 | 2.4856 | NiCr22Mo9Nb | 625 |
Chemical Composition of Nickel Alloy 625 and Inconel 625
| Al | C | Co | Cr | Fe | Mn | Mo | Nb | Ni | P | S | Si | Ti |
| .40 max | .10 max | 1.0 max | 20.0 – 23.0 | 5.0 max | .50 max | 8.0 – 10.0 | 3.15 – 4.15 | 58.0 min | .015 max | .015 max | .50 max | .40 max |
Mechanical Physical Properties of Inconel 625
| Property | 21 °C | 204 °C | 316 °C | 427 °C | 538 °C | 649 °C | 760 °C | 871 °C |
| Ultimate Tensile Strength /Mpa | 992.9 | 923.9 | 910.1 | 910.1 | 896.3 | 820.5 | 537.8 | 275.8 |
| 0.2% Yield Strength /MPa | 579.2 | 455.1 | 434.4 | 420.6 | 420.6 | 413.7 | 406.8 | 268.9 |
| Elongation % | 44 | 45 | 42.5 | 45 | 48 | 34 | 59 | 117 |
| Coefficient of Thermal Expansion µm/m⁰C | – | 13.1 | 13.3 | 13.7 | 14 | 14.8 | 15.3 | 15.8 |
| Thermal Conductivity/kcal/(hr.m.°C) | 8.5 | 10.7 | 12.2 | 13.5 | 15 | 16.4 | 17.9 | 19.6 |
| Modulus of Elasticity/MPa | 2.07 | 1.93 | 1.93 | 1.86 | 1.79 | 1.65 | 1.59 | – |
What is a weld neck RTJ flange?
Welding Neck RTJ Flange is designed to withstand high pressure and temperature. It is commonly used in offshore drilling rigs and subsea pipelines, as well as nuclear power plants, petrochemical plants, oil refineries and power plants.
The WNRTJ flange has a neck that can be welded to the pipe, and has a bore that matches the inside diameter of the pipe. It is commonly used in high pressure applications such as power plants, nuclear power plants, petrochemical plants and oil refineries. It also used in offshore drilling rigs and subsea pipelines.
Welding neck ring type joint flange is used in high pressure applications.
It is the most popular gas flange and the most widely used types of flanges in the world. The welding neck ring joint is designed for leak-free applications at high pressure. Welding neck RTJ Flange (WNR) can be made with a wide range of materials, including carbon steel, stainless steel, nickel alloy and titanium alloys. In fact, it is one of the most versatile types of flanges on the market today because it can be produced in many different materials with a variety of features depending on your application needs.
Class 1500 WNRTJ Flange Dimensions
| Size in Inch | Size in mm | Outer Dia. | Flange Thickness | Hub OD | Weld Neck OD | Welding Neck Length | RTJ RF Dia | RTJ RF Height | PCD | RTJ Pitch dia | RTJ Depth | RTJ Width | Bore |
| A | B | C | D | E | F | G | H | I | J | K | L | ||
| 1/2 | 15 | 120 | 22.3 | 38 | 21.3 | 60 | 60.5 | 6.35 | 82.6 | 39.67 | 6.35 | 8.74 | Welding Neck bore is derived from the pipe schedule |
| 3/4 | 20 | 130 | 25.4 | 44 | 26.7 | 70 | 66.5 | 6.35 | 88.9 | 44.45 | 6.35 | 8.74 | |
| 1 | 25 | 150 | 28.6 | 52 | 33.4 | 73 | 71.5 | 6.35 | 101.6 | 50.8 | 6.35 | 8.74 | |
| 1 1/4 | 32 | 160 | 28.6 | 64 | 42.2 | 73 | 81 | 6.35 | 111.1 | 60.33 | 6.35 | 8.74 | |
| 1 1/2 | 40 | 180 | 31.8 | 70 | 48.3 | 83 | 92 | 6.35 | 123.8 | 68.27 | 6.35 | 8.74 | |
| 2 | 50 | 215 | 38.1 | 105 | 60.3 | 102 | 124 | 7.92 | 165.1 | 95.25 | 7.92 | 11.91 | |
| 2 1/2 | 65 | 245 | 41.3 | 124 | 73 | 105 | 137 | 7.92 | 190.5 | 107.95 | 7.92 | 11.91 | |
| 3 | 80 | 265 | 47.7 | 133 | 88.9 | 117 | 168 | 7.92 | 203.2 | 136.53 | 7.92 | 11.91 | |
| 4 | 100 | 310 | 54 | 162 | 114.3 | 124 | 194 | 7.92 | 241.3 | 161.93 | 7.92 | 11.91 | |
| 5 | 125 | 375 | 73.1 | 197 | 141.3 | 156 | 229 | 7.92 | 292.1 | 193.68 | 7.92 | 11.91 | |
| 6 | 150 | 395 | 82.6 | 229 | 168.3 | 171 | 248 | 9.53 | 317.5 | 211.14 | 9.53 | 13.49 | |
| 8 | 200 | 485 | 92.1 | 292 | 219.1 | 213 | 318 | 11.13 | 393.7 | 269.88 | 11.13 | 16.66 | |
| 10 | 250 | 585 | 108 | 368 | 273 | 254 | 371 | 11.13 | 482.6 | 323.85 | 11.13 | 16.66 | |
| 12 | 300 | 675 | 123.9 | 451 | 323.8 | 283 | 438 | 14.27 | 571.5 | 381 | 14.27 | 23.01 | |
| 14 | 350 | 750 | 133.4 | 495 | 355.6 | 298 | 489 | 15.88 | 635 | 419.1 | 15.88 | 26.97 | |
| 16 | 400 | 825 | 146.1 | 552 | 406.4 | 311 | 546 | 17.48 | 704.8 | 469.9 | 17.48 | 30.18 | |
| 18 | 450 | 915 | 162 | 597 | 457 | 327 | 613 | 17.48 | 774.7 | 533.4 | 17.48 | 30.18 | |
| 20 | 500 | 985 | 177.8 | 641 | 508 | 356 | 673 | 17.48 | 831.8 | 584.2 | 17.48 | 33.32 | |
| 24 | 600 | 1170 | 203.2 | 762 | 610 | 406 | 794 | 20.62 | 990.6 | 692.15 | 20.62 | 36.53 |
Note: Welding Neck bore is derived from the pipe schedule
Class 1500 WNRTJ Flange Stud & Bolt Dimesions
| RTJ Root Radius | Ring no | Distance Between Flanges | No of Bolts | Bolt Size UNC | RTJ Stud Length | Hole Size | ISO Stud Size |
| 0.8 | 12 | 4 | 4 | 3/4 | 110 | 7/8 | M20 |
| 0.8 | 14 | 4 | 4 | 3/4 | 115 | 7/8 | M20 |
| 0.8 | 16 | 4 | 4 | 7/8 | 125 | 1 | M24 |
| 0.8 | 18 | 4 | 4 | 7/8 | 125 | 1 | M24 |
| 0.8 | 20 | 4 | 4 | 1 | 140 | 1 1/8 | M27 |
| 0.8 | 24 | 3 | 8 | 7/8 | 145 | 1 | M24 |
| 0.8 | 27 | 3 | 8 | 1 | 160 | 1 1/8 | M27 |
| 0.8 | 35 | 3 | 8 | 1 1/8 | 180 | 1 1/4 | M30 |
| 0.8 | 39 | 3 | 8 | 1 1/4 | 195 | 1 3/8 | M33 |
| 0.8 | 44 | 3 | 8 | 1 1/2 | 250 | 1 5/8 | M39 |
| 1.5 | 46 | 3 | 12 | 1 3/8 | 265 | 1 1/2 | M36 |
| 1.5 | 50 | 4 | 12 | 1 5/8 | 325 | 1 3/4 | M42 |
| 1.5 | 54 | 4 | 12 | 1 7/8 | 345 | 2 | M48 |
| 1.5 | 58 | 5 | 16 | 2 | 385 | 2 1/8 | M52 |
| 2.4 | 63 | 6 | 16 | 2 1/4 | 425 | 2 3/8 | M56 |
| 2.4 | 67 | 8 | 16 | 2 1/2 | 470 | 2 5/8 | M64 |
| 2.4 | 71 | 8 | 16 | 2 3/4 | 525 | 2 7/8 | M72 |
| 2.4 | 75 | 10 | 16 | 3 | 565 | 3 1/8 | M76 |
| 2.4 | 79 | 11 | 16 | 3 1/2 | 650 | 3 5/8 | M90 |
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