ASME B16.5 Forged Lap Joint Flange
High-Pressure forged flange for critical service piping. Backed by 20+ years of manufacturing expertise.
Size: 1/2″ to 24″
Pressure: Class 150-2500
Facing: Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ),Male/Female, Tongue/Groove
Material: Carbon, Stainless, Alloy Steel
Standard：ASME B16.5/B16.47, API605, MSS SP44,DIN 2631-2637, EN 1092-1, GOST 12821-80,BS,JIS2220
Standard & Custom Flange Solutions
Response within 24 hours
ANSI B16.5 CLASS 150 FORGED Lap Joint FLANGES dimensions specification
| Nominal Pipe Size | Outside Diam.D | Diam. at Base of Hub X | O.D. of Raised Face G | Thickness t | Lap Joint B3 | Lap Joint T3 | Diam. of Hub at Bevel A | Radius of Fillet R |
|---|---|---|---|---|---|---|---|---|
| 1/2 | 89 | 30.2 | 35.1 | 11.2 | 22.9 | 15.7 | 21.3 | 3.0 |
| 3/4 | 99 | 38.1 | 42.9 | 12.7 | 28.2 | 15.7 | 26.7 | 3.0 |
| 1 | 108 | 49.3 | 50.8 | 14.2 | 35.1 | 17.5 | 33.5 | 3.0 |
| 1 1/4 | 117 | 58.7 | 63.5 | 15.7 | 43.7 | 20.6 | 42.2 | 4.8 |
| 1 1/2 | 127 | 65.0 | 73.2 | 17.5 | 50.0 | 22.4 | 48.3 | 6.4 |
| 2 | 152 | 77.7 | 91.9 | 19.1 | 62.5 | 25.4 | 60.5 | 7.9 |
| 2 1/2 | 178 | 90.4 | 104.6 | 22.4 | 75.4 | 28.4 | 73.2 | 7.9 |
| 3 | 191 | 108.0 | 127.0 | 23.9 | 91.4 | 30.2 | 88.9 | 9.7 |
| 3 1/2 | 216 | 122.2 | 139.7 | 23.9 | 104.1 | 31.8 | 101.6 | 9.7 |
| 4 | 229 | 134.9 | 157.2 | 23.9 | 116.8 | 33.3 | 114.3 | 11.2 |
| 5 | 254 | 163.6 | 185.7 | 23.9 | 144.5 | 36.6 | 141.2 | 11.2 |
| 6 | 279 | 192.0 | 215.9 | 25.4 | 171.5 | 39.6 | 168.4 | 12.7 |
| 8 | 343 | 246.1 | 269.7 | 28.4 | 222.3 | 44.5 | 219.2 | 12.7 |
| 10 | 406 | 304.8 | 323.9 | 30.2 | 277.4 | 49.3 | 273.1 | 12.7 |
| 12 | 483 | 365.3 | 381.0 | 31.8 | 328.2 | 55.6 | 323.9 | 12.7 |
| 14 | 533 | 400.1 | 412.8 | 35.1 | 360.2 | 79.2 | 355.6 | 12.7 |
| 16 | 597 | 457.2 | 469.9 | 36.6 | 411.2 | 87.4 | 406.4 | 12.7 |
| 18 | 635 | 505.0 | 533.4 | 39.6 | 462.3 | 96.8 | 457.2 | 12.7 |
| 20 | 699 | 558.8 | 584.2 | 42.9 | 514.4 | 103.1 | 508.0 | 12.7 |
| 24 | 813 | 663.4 | 692.2 | 47.8 | 616.0 | 111.3 | 609.6 | 12.7 |
» These flanges will be furnished with a 1/16″ raised face unless otherwise specified.
» Standard Bore will be furnished unless otherwise specified.
Technical Category
Pipe Flanges Dimension
Steel Pipe And Fittings Dimension
Material Specifications
| ASME B16.5 Welding Neck Flanges | ASME B16.47 Series B Welding Neck Flanges | ASME B16.47 Series A Welding Neck Flanges |
| Class 150 | Class 75 | |
| Class 300 | Class 150 | Class 150 |
| Class 600 | Class 300 | Class 300 |
| Class 900 | Class 400 | Class 400 |
| Class 1500 | Class 600 | Class 600 |
| Class 2500 | Class 900 | Class 900 |
Custom Flange Needs?