ASME B16.5 ASTM B462 Nickel 20 Weld Neck Ring Type Joint Flange 1-1/2″ Sch80 CL300
Short Description
Model No.: ASTM-B462-Nickel-20-Weld-Neck-Ring-Type-Joint-Flange-1-1/2"-Sch80-CL300
China Weld Neck Ring Type Joint Flange Manufacturer www.pipelinedubai.com offers ASME B16.5 ASTM B462 Nickel 20 Weld Neck Ring Type Joint Flange, 1-1/2″, Sch80, CL300.
Key Specifications / Features
Type: Nickel 20 Weld Neck Ring Type Joint Flange
Material: Alloy 20 (UNS N08020/2.4660)
Pressure: 300#
Size: 1-1/2″ (DN40)
Standard: ASME B16.5
Ends: Ring Type Joint
Alloy 20, also known as Carpenter 20, is a Nickel-iron-chromium Austenitic alloy that was developed for maximum resistance to acid attack, specifically sulfuric acid. This superalloy has excellent resistance to general corrosion, pitting, and crevice corrosion in chemicals containing chlorides and sulfuric, phosphoric, and nitric acids. It also contains niobium for stabilization against sensitization and resultant intergranular corrosion. Carpenter 20 combines excellent corrosion resistance with elevated mechanical properties and relatively easy fabrication. Although originally designed for use in sulfuric acid related industries, Alloy 20 is now a popular choice for a wide variety of industries including the chemical, food, pharmaceutical, and plastics industries. In addition, this superalloy is used in heat exchangers, mixing tanks, metal cleaning and pickling equipment, pipe fittings, flanges, valves and piping.
There has long been a debate on whether Carpenter 20 is a stainless steel or a nickel alloy because the nickel content is right on the border of defining it as one way or the other. So, depending on who you talk to this alloy may be referred to as alloy 20 Stainless Steel or as a nickel alloy. Either way it is still great for corrosion resistance.
Chemical Composition of Alloy 20 (UNS N08020/2.4660)
| Ni | C | Mo | Mn | Si | Fe | P | S | Cr | Nb | Cu |
| 32 – 38 | 0.02 max | 2 – 3 | 1 – 2 | 0.7 max | Bal | 0.02 max | 0.005 max | 19 – 21 | 0.1 – 0.3 | 3 – 4 |
Mechanical Properties of Alloy 20 (UNS N08020/2.4660)
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.1 g/cm3 | 1443 °C (2430 °F) | Psi – 35000 , MPa – 241 | Psi – 80000 , MPa – 551 | 30 % |
ASTM Specification
|
SMLS Pipe |
Welded Pipe |
SMLS Tube |
Welded Tube |
Sheet/Plate |
Bar |
Forging /Flange |
BW Fittings |
|
ASTM B729 |
ASTM B464 |
ASTM B729 |
ASTM B468 |
ASTM B463 |
ASTM B473 |
ASTM B462 |
ASTM B366 |
Class 300 WN RTJ 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 | 95 | 12.7 | 38 | 21.3 | 51 | 51 | 5.54 | 66.7 | 34.14 | 5.54 | 7.14 | Refer Note |
| 3/4 | 20 | 115 | 14.3 | 48 | 26.7 | 56 | 63.5 | 6.35 | 82.6 | 42.88 | 6.35 | 8.74 | |
| 1 | 25 | 125 | 15.9 | 54 | 33.4 | 60 | 70 | 6.35 | 88.9 | 50.8 | 6.35 | 8.74 | |
| 1 1/4 | 32 | 135 | 17.5 | 64 | 42.2 | 64 | 79.5 | 6.35 | 98.4 | 60.33 | 6.35 | 8.74 | |
| 1 1/2 | 40 | 155 | 19.1 | 70 | 48.3 | 67 | 90.5 | 6.35 | 114.3 | 68.27 | 6.35 | 8.74 | |
| 2 | 50 | 165 | 20.7 | 84 | 60.3 | 68 | 108 | 7.92 | 127 | 82.55 | 7.92 | 11.91 | |
| 2 1/2 | 65 | 190 | 23.9 | 100 | 73 | 75 | 127 | 7.92 | 149.2 | 101.6 | 7.92 | 11.91 | |
| 3 | 80 | 210 | 27 | 117 | 88.9 | 78 | 146 | 7.92 | 168.3 | 123.83 | 7.92 | 11.91 | |
| 3 1/2 | 90 | 230 | 28.6 | 133 | 101.6 | 79 | 159 | 7.92 | 184.2 | 131.78 | 7.92 | 11.91 | |
| 4 | 100 | 255 | 30.2 | 146 | 114.3 | 84 | 175 | 7.92 | 200 | 149.23 | 7.92 | 11.91 | |
| 5 | 125 | 280 | 33.4 | 178 | 141.3 | 97 | 210 | 7.92 | 235 | 180.98 | 7.92 | 11.91 | |
| 6 | 150 | 320 | 35 | 206 | 168.3 | 97 | 241 | 7.92 | 269.9 | 211.12 | 7.92 | 11.91 | |
| 8 | 200 | 380 | 39.7 | 260 | 219.1 | 110 | 302 | 7.92 | 330.2 | 269.88 | 7.92 | 11.91 | |
| 10 | 250 | 445 | 46.1 | 321 | 273 | 116 | 356 | 7.92 | 387.4 | 323.85 | 7.92 | 11.91 | |
| 12 | 300 | 520 | 49.3 | 375 | 323.8 | 129 | 413 | 7.92 | 450.8 | 381 | 7.92 | 11.91 | |
| 14 | 350 | 585 | 52.4 | 425 | 355.6 | 141 | 457 | 7.92 | 514.4 | 419.1 | 7.92 | 11.91 | |
| 16 | 400 | 650 | 55.6 | 483 | 406.4 | 144 | 508 | 7.92 | 571.5 | 469.9 | 7.92 | 11.91 | |
| 18 | 450 | 710 | 58.8 | 533 | 457 | 157 | 575 | 7.92 | 628.6 | 533.4 | 7.92 | 11.91 | |
| 20 | 500 | 775 | 62 | 587 | 508 | 160 | 635 | 9.53 | 685.8 | 584.2 | 9.53 | 13.49 | |
| 24 | 600 | 915 | 68.3 | 702 | 610 | 167 | 749 | 11.13 | 812.8 | 692.15 | 11.13 | 16.66 |
Note: Welding Neck bore is derived from the pipe schedule
Class 300 WN RTJ Flange Stud & Bolt Dimesions
| RTJ Root Radius | Ring no | Distance Between Flanges | No of Bolts | Bolt Size UNC | Machine Bolt Length | RTJ Stud Length | Hole Size | ISO Stud Size |
| 0.8 | R11 | 3 | 4 | 1/2 | 55 | 75 | 5/8 | M14 |
| 0.8 | 13 | 4 | 4 | 5/8 | 65 | 90 | 3/4 | M16 |
| 0.8 | 16 | 4 | 4 | 5/8 | 65 | 90 | 3/4 | M16 |
| 0.8 | 18 | 4 | 4 | 5/8 | 70 | 95 | 3/4 | M16 |
| 0.8 | 20 | 4 | 4 | 3/4 | 75 | 100 | 7/8 | M20 |
| 0.8 | 23 | 6 | 8 | 5/8 | 75 | 100 | 3/4 | M16 |
| 0.8 | 26 | 6 | 8 | 3/4 | 85 | 115 | 7/8 | M20 |
| 0.8 | 31 | 6 | 8 | 3/4 | 90 | 120 | 7/8 | M20 |
| 0.8 | 34 | 6 | 8 | 3/4 | 95 | 125 | 7/8 | M20 |
| 0.8 | 37 | 6 | 8 | 3/4 | 95 | 125 | 7/8 | M20 |
| 0.8 | 41 | 6 | 8 | 3/4 | 110 | 135 | 7/8 | M20 |
| 0.8 | 45 | 6 | 12 | 3/4 | 110 | 140 | 7/8 | M20 |
| 0.8 | 49 | 6 | 12 | 7/8 | 120 | 150 | 1 | M24 |
| 0.8 | 53 | 6 | 16 | 1 | 140 | 170 | 1 1/8 | M27 |
| 0.8 | 57 | 6 | 16 | 1 1/8 | 145 | 185 | 1 1/4 | M30 |
| 0.8 | 61 | 6 | 20 | 1 1/8 | 160 | 190 | 1 1/4 | M30 |
| 0.8 | 65 | 6 | 20 | 1 1/4 | 165 | 205 | 1 3/8 | M33 |
| 0.8 | 69 | 6 | 24 | 1 1/4 | 170 | 210 | 1 3/8 | M33 |
| 1.5 | 73 | 6 | 24 | 1 1/4 | 185 | 220 | 1 3/8 | M33 |
| 1.5 | 77 | 6 | 24 | 1 1/2 | 205 | 255 | 1 5/8 | M39 |
