Steel Flange & Pipe Flange Slip-on Flange
Steel Flange
1.Types: Slip-On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint and Plate etc;
2.Standard:
(1) ANSI B16.5, A105 150LB / 300LB / 600LB / 900LB / 1500LB / 2500LB
(2) DIN 2573 PN6 / DIN 2576 PN10 / DIN2502 PN16 / DIN2503 P25-40 / DIN2566 PN16 / DIN2631-2635 RST37.2 OR C22.8
(3) JIS SS400 OR SF440 5K / 10K / 16K / 20K / 30K
(4) UNI 2276 / 2277 / 2278 / 6084 / 6089 / 6090 / 2544 / 2282 / 6091-6093
(5) EN1092 PN6 / PN10 / PN16 / PN25 / PN40 / TYPE1 TYPE2 TYPE 5 TYPE 12 TYPE 13
(6) BS4504 SANI1123 1000/3, 1600/3, 2500/3, T/D, T/E, T/F carbon steel flange
(7) AS2129 TABLE D / TABLE H / TABLE E carbon steel flange
(8) GOST 12820-80 / 12821-80 carbon steel flange
3.Wall Thickness: Sch10, Sch20 , Sch30, STD, Sch40, XS,Sch80, Sch100, Sch120, Sch140, XXS;
4.Pressure Rating: Class 150LBS, 300LBS, 600LBS, 900LBS, 1500LBS, 2000LBS, 3000LBS, 6000LBS, 9000 LBS;
5.Size: 1/2" - 24";
6.Surface treatment: Anti-rust oil, black / yellow / transparent / electric galvanized / hot galvanized.
Production process of pipe flange
1. Die forging
Die forging is fully called model forging. The heated blank is placed in the forging die fixed on the die forging equipment for forging.
a. The basic process of die forging die forging process: blanking, heating, pre forging, final forging, punching, edge cutting, tempering and shot peening. Common processes include upsetting, drawing, bending, punching and forming.
b. Common die forging equipment common die forging equipment include die forging hammer, hot die forging press, flat forging press and friction press.
Generally speaking, the quality of forged flange is better. It is generally produced by die forging, with fine crystal structure and high strength. Of course, the price is also more expensive.
Both cast flanges and forged flanges are common manufacturing methods of flanges. Depending on the strength requirements of the components to be used, turning flanges can also be selected if the requirements are not high.
2. Cut flange
Directly cut the disc with internal and external diameter and thickness of the flange on the middle plate, and then process the bolt hole and water line. The flange produced in this way is called cut flange, and the maximum diameter of this kind of flange is limited to the width of the middle plate.
3. Rolled flange
The process of cutting strips with medium plate and then rolling them into circles is called rolling, which is mostly used in the production of some large flanges. After successful rolling, weld, flatten, and then process the waterline and bolt hole.
forged steel flange dimensions class150
| Nominal size | Outside diam. of flange | Thick. of flange | Diam. of raised face | Diam of hub at base | Length thru hub | Diam. of bore | No. of holes | Diam. of holes | Diam. of bolts | Diam. of bolt circle | Approx. weight pounds Kg | |
| O | C | R | X | Y | B | |||||||
| in. | 1/2" | 3.5 | 0.44 | 1.38 | 1.19 | 0.62 | 0.88 | 4 | 0.62 | 1/2 | 2.38 | 1 |
| mm. | 88.9 | 11.2 | 35.1 | 30.2 | 15.7 | 22.4 | 15.7 | 12.7 | 60.5 | 0.5 | ||
| in. | 3/4" | 3.88 | 0.5 | 1.69 | 1.5 | 0.62 | 1.09 | 4 | 0.62 | 1/2 | 2.75 | 2 |
| mm. | 98.6 | 12.7 | 42.9 | 38.1 | 15.7 | 27.7 | 15.7 | 12.7 | 69.9 | 1 | ||
| in. | 1" | 4.25 | 0.56 | 2 | 1.94 | 0.69 | 1.36 | 4 | 0.62 | 1/2 | 3.12 | 2 |
| mm. | 108 | 14.2 | 50.8 | 49.3 | 17.5 | 34.5 | 15.7 | 12.7 | 79.2 | 1 | ||
| in. | 1 1/4" | 4.62 | 0.62 | 2.5 | 2.31 | 0.81 | 1.7 | 4 | 0.62 | 1/2 | 3.5 | 3 |
| mm. | 117.3 | 15.7 | 63.5 | 58.7 | 20.6 | 43.2 | 15.7 | 12.7 | 88.9 | 1 | ||
| in. | 1 1/2" | 5 | 0.69 | 2.88 | 2.56 | 0.88 | 1.95 | 4 | 0.62 | 1/2 | 3.88 | 3 |
| mm. | 127 | 17.5 | 73.2 | 65 | 22.4 | 49.5 | 15.7 | 12.7 | 98.6 | 1 | ||
| in. | 2" | 6 | 0.75 | 3.62 | 3.06 | 1 | 2.44 | 4 | 0.75 | 5/8 | 4.75 | 5 |
| mm. | 152.4 | 19.1 | 91.9 | 77.7 | 25.4 | 62 | 19.1 | 15.9 | 120.7 | 2 | ||
| in. | 2 1/2" | 7 | 0.88 | 4.12 | 3.56 | 1.12 | 2.94 | 4 | 0.75 | 5/8 | 5.5 | 7 |
| mm. | 177.8 | 22.4 | 104.6 | 90.4 | 28.4 | 74.7 | 19.1 | 15.9 | 139.7 | 3 | ||
| in. | 3" | 7.5 | 0.94 | 5 | 4.25 | 1.19 | 3.57 | 4 | 0.75 | 5/8 | 6 | 8 |
| mm. | 190.5 | 23.9 | 127 | 108 | 30.2 | 90.7 | 19.1 | 15.9 | 152.4 | 4 | ||
| in. | 3 1/2" | 8.5 | 0.94 | 5.5 | 4.81 | 1.25 | 4.07 | 8 | 0.75 | 5/8 | 7 | 11 |
| mm. | 215.9 | 23.9 | 139.7 | 122.2 | 31.8 | 103.4 | 19.1 | 15.9 | 177.8 | 5 | ||
| in. | 4" | 9 | 0.94 | 6.19 | 5.31 | 1.31 | 4.57 | 8 | 0.75 | 5/8 | 7.5 | 13 |
| mm. | 228.6 | 23.9 | 157.2 | 134.9 | 33.3 | 116.1 | 19.1 | 15.9 | 190.5 | 6 | ||
| in. | 5" | 10 | 0.94 | 7.31 | 6.44 | 1.44 | 5.66 | 8 | 0.88 | 3/4 | 8.5 | 15 |
| mm. | 254 | 23.9 | 185.7 | 163.6 | 36.6 | 143.8 | 22.4 | 19.1 | 215.9 | 7 | ||
| in. | 6" | 11 | 1 | 8.5 | 7.56 | 1.56 | 6.72 | 8 | 0.88 | 3/4 | 9.5 | 19 |
| mm. | 279.4 | 25.4 | 215.9 | 192 | 39.6 | 170.7 | 22.4 | 19.1 | 241.3 | 9 | ||
| in. | 8" | 13.5 | 1.12 | 10.62 | 9.69 | 1.75 | 8.72 | 8 | 0.88 | 3/4 | 11.75 | 30 |
| mm. | 342.9 | 28.4 | 269.7 | 246.1 | 44.5 | 221.5 | 22.4 | 19.1 | 298.5 | 14 | ||
| in. | 10" | 16 | 1.19 | 12.75 | 12 | 1.94 | 10.88 | 12 | 1 | 7/8 | 14.25 | 43 |
| mm. | 406.4 | 30.2 | 323.9 | 304.8 | 49.3 | 276.4 | 25.4 | 22.2 | 362 | 20 | ||
| in. | 12" | 19 | 1.25 | 15 | 14.38 | 2.19 | 12.88 | 12 | 1 | 7/8 | 17 | 64 |
| mm. | 482.6 | 31.8 | 381 | 365.3 | 55.6 | 327.2 | 25.4 | 22.2 | 431.8 | 29 | ||
| in. | 14" | 21 | 1.38 | 16.25 | 15.75 | 2.25 | 14.14 | 12 | 1.12 | 1 | 18.75 | 90 |
| mm. | 533.4 | 35.1 | 412.8 | 400.1 | 57.2 | 359.2 | 28.4 | 25.4 | 476.3 | 41 | ||
| in. | 16" | 23.5 | 1.44 | 18.5 | 18 | 2.5 | 16.16 | 16 | 1.12 | 1 | 21.25 | 98 |
| mm. | 596.9 | 36.6 | 469.9 | 457.2 | 63.5 | 410.5 | 28.4 | 25.4 | 539.8 | 44 | ||
| in. | 18" | 25 | 1.56 | 21 | 19.88 | 2.69 | 18.18 | 16 | 1.25 | 1 1/8 | 22.75 | 130 |
| mm. | 635 | 39.6 | 533.4 | 505 | 68.3 | 461.8 | 31.8 | 28.6 | 577.9 | 59 | ||
| in. | 20" | 27.5 | 1.69 | 23 | 22 | 2.88 | 20.2 | 20 | 1.25 | 1 1/8 | 25 | 165 |
| mm. | 698.5 | 42.9 | 584.2 | 558.8 | 73.2 | 513.1 | 31.8 | 28.6 | 635 | 75 | ||
| in. | 24" | 32 | 1.88 | 27.25 | 26.12 | 3.25 | 24.25 | 20 | 1.38 | 1 1/4 | 29.5 | 220 |
| mm. | 812.8 | 47.8 | 692.2 | 663.4 | 82.6 | 616 | 35.1 | 31.8 | 749.3 | 100 | ||
forged steel flange dimensions class300
| Nominal size | Outside diam. of flange | Thick. of flange | Diam. of raised face | Diam of hub at base | Length thru hub | Diam. of bore | No. of holes | Diam. of holes | Diam. of bolts | Diam. of bolt circle | Approx. weight pounds Kg | |
| O | C | R | X | Y | B | |||||||
| in. | 1/2" | 3.5 | 0.44 | 1.38 | 1.19 | 0.62 | 0.88 | 4 | 0.62 | 1/2 | 2.38 | 1 |
| mm. | 88.9 | 11.2 | 35.1 | 30.2 | 15.7 | 22.4 | 15.7 | 12.7 | 60.5 | 0.5 | ||
| in. | 3/4" | 3.88 | 0.5 | 1.69 | 1.5 | 0.62 | 1.09 | 4 | 0.62 | 1/2 | 2.75 | 2 |
| mm. | 98.6 | 12.7 | 42.9 | 38.1 | 15.7 | 27.7 | 15.7 | 12.7 | 69.9 | 1 | ||
| in. | 1" | 4.25 | 0.56 | 2 | 1.94 | 0.69 | 1.36 | 4 | 0.62 | 1/2 | 3.12 | 2 |
| mm. | 108 | 14.2 | 50.8 | 49.3 | 17.5 | 34.5 | 15.7 | 12.7 | 79.2 | 1 | ||
| in. | 1 1/4" | 4.62 | 0.62 | 2.5 | 2.31 | 0.81 | 1.7 | 4 | 0.62 | 1/2 | 3.5 | 3 |
| mm. | 117.3 | 15.7 | 63.5 | 58.7 | 20.6 | 43.2 | 15.7 | 12.7 | 88.9 | 1 | ||
| in. | 1 1/2" | 5 | 0.69 | 2.88 | 2.56 | 0.88 | 1.95 | 4 | 0.62 | 1/2 | 3.88 | 3 |
| mm. | 127 | 17.5 | 73.2 | 65 | 22.4 | 49.5 | 15.7 | 12.7 | 98.6 | 1 | ||
| in. | 2" | 6 | 0.75 | 3.62 | 3.06 | 1 | 2.44 | 4 | 0.75 | 5/8 | 4.75 | 5 |
| mm. | 152.4 | 19.1 | 91.9 | 77.7 | 25.4 | 62 | 19.1 | 15.9 | 120.7 | 2 | ||
| in. | 2 1/2" | 7 | 0.88 | 4.12 | 3.56 | 1.12 | 2.94 | 4 | 0.75 | 5/8 | 5.5 | 7 |
| mm. | 177.8 | 22.4 | 104.6 | 90.4 | 28.4 | 74.7 | 19.1 | 15.9 | 139.7 | 3 | ||
| in. | 3" | 7.5 | 0.94 | 5 | 4.25 | 1.19 | 3.57 | 4 | 0.75 | 5/8 | 6 | 8 |
| mm. | 190.5 | 23.9 | 127 | 108 | 30.2 | 90.7 | 19.1 | 15.9 | 152.4 | 4 | ||
| in. | 3 1/2" | 8.5 | 0.94 | 5.5 | 4.81 | 1.25 | 4.07 | 8 | 0.75 | 5/8 | 7 | 11 |
| mm. | 215.9 | 23.9 | 139.7 | 122.2 | 31.8 | 103.4 | 19.1 | 15.9 | 177.8 | 5 | ||
| in. | 4" | 9 | 0.94 | 6.19 | 5.31 | 1.31 | 4.57 | 8 | 0.75 | 5/8 | 7.5 | 13 |
| mm. | 228.6 | 23.9 | 157.2 | 134.9 | 33.3 | 116.1 | 19.1 | 15.9 | 190.5 | 6 | ||
| in. | 5" | 10 | 0.94 | 7.31 | 6.44 | 1.44 | 5.66 | 8 | 0.88 | 3/4 | 8.5 | 15 |
| mm. | 254 | 23.9 | 185.7 | 163.6 | 36.6 | 143.8 | 22.4 | 19.1 | 215.9 | 7 | ||
| in. | 6" | 11 | 1 | 8.5 | 7.56 | 1.56 | 6.72 | 8 | 0.88 | 3/4 | 9.5 | 19 |
| mm. | 279.4 | 25.4 | 215.9 | 192 | 39.6 | 170.7 | 22.4 | 19.1 | 241.3 | 9 | ||
| in. | 8" | 13.5 | 1.12 | 10.62 | 9.69 | 1.75 | 8.72 | 8 | 0.88 | 3/4 | 11.75 | 30 |
| mm. | 342.9 | 28.4 | 269.7 | 246.1 | 44.5 | 221.5 | 22.4 | 19.1 | 298.5 | 14 | ||
| in. | 10" | 16 | 1.19 | 12.75 | 12 | 1.94 | 10.88 | 12 | 1 | 7/8 | 14.25 | 43 |
| mm. | 406.4 | 30.2 | 323.9 | 304.8 | 49.3 | 276.4 | 25.4 | 22.2 | 362 | 20 | ||
| in. | 12" | 19 | 1.25 | 15 | 14.38 | 2.19 | 12.88 | 12 | 1 | 7/8 | 17 | 64 |
| mm. | 482.6 | 31.8 | 381 | 365.3 | 55.6 | 327.2 | 25.4 | 22.2 | 431.8 | 29 | ||
| in. | 14" | 21 | 1.38 | 16.25 | 15.75 | 2.25 | 14.14 | 12 | 1.12 | 1 | 18.75 | 90 |
| mm. | 533.4 | 35.1 | 412.8 | 400.1 | 57.2 | 359.2 | 28.4 | 25.4 | 476.3 | 41 | ||
| in. | 16" | 23.5 | 1.44 | 18.5 | 18 | 2.5 | 16.16 | 16 | 1.12 | 1 | 21.25 | 98 |
| mm. | 596.9 | 36.6 | 469.9 | 457.2 | 63.5 | 410.5 | 28.4 | 25.4 | 539.8 | 44 | ||
| in. | 18" | 25 | 1.56 | 21 | 19.88 | 2.69 | 18.18 | 16 | 1.25 | 1 1/8 | 22.75 | 130 |
| mm. | 635 | 39.6 | 533.4 | 505 | 68.3 | 461.8 | 31.8 | 28.6 | 577.9 | 59 | ||
| in. | 20" | 27.5 | 1.69 | 23 | 22 | 2.88 | 20.2 | 20 | 1.25 | 1 1/8 | 25 | 165 |
| mm. | 698.5 | 42.9 | 584.2 | 558.8 | 73.2 | 513.1 | 31.8 | 28.6 | 635 | 75 | ||
| in. | 24" | 32 | 1.88 | 27.25 | 26.12 | 3.25 | 24.25 | 20 | 1.38 | 1 1/4 | 29.5 | 220 |
| mm. | 812.8 | 47.8 | 692.2 | 663.4 | 82.6 | 616 | 35.1 | 31.8 | 749.3 | 100 | ||
forged steel flange dimensions class600
| Nominal size | Outside diam. of flange | Thick. of flange | Diam. of raised face | Diam of hub at base | Length thru hub | Diam. of bore | No. of holes | Diam. of holes | Diam. of bolts | Diam. of bolt circle | Approx. weight pounds Kg |
| O | C | R | X | Y | B | ||||||
| 1/2" | 3.75 | 0.56 | 1.38 | 1.5 | 0.88 | 0.88 | 4 | 0.62 | 1/2 | 2.62 | 2 |
| 95.3 | 14.2 | 35.1 | 38.1 | 22.4 | 22.4 | 15.7 | 12.7 | 66.5 | 1 | ||
| 3/4" | 4.62 | 0.62 | 1.69 | 1.88 | 1 | 1.09 | 4 | 0.75 | 5/8 | 3.25 | 3 |
| 117.3 | 15.7 | 42.9 | 47.8 | 25.4 | 27.7 | 19.1 | 15.9 | 82.6 | 1 | ||
| 1" | 4.88 | 0.69 | 2 | 2.12 | 1.06 | 1.36 | 4 | 0.75 | 5/8 | 3.5 | 4 |
| 124 | 17.5 | 50.8 | 53.8 | 26.9 | 34.5 | 19.1 | 15.9 | 88.9 | 2 | ||
| 1 1/4" | 5.25 | 0.81 | 2.5 | 2.5 | 1.12 | 1.7 | 4 | 0.75 | 5/8 | 3.88 | 5 |
| 133.4 | 20.6 | 63.5 | 63.5 | 28.4 | 43.2 | 19.1 | 15.9 | 98.6 | 2 | ||
| 1 1/2" | 6.12 | 0.88 | 2.88 | 2.75 | 1.25 | 1.95 | 4 | 0.88 | 3/4 | 4.5 | 7 |
| 155.4 | 22.4 | 73.2 | 69.9 | 31.8 | 49.5 | 22.4 | 19.1 | 114.3 | 3 | ||
| 2" | 6.5 | 1 | 3.62 | 3.31 | 1.44 | 2.44 | 8 | 0.75 | 5/8 | 5 | 9 |
| 165.1 | 25.4 | 91.9 | 84.1 | 36.6 | 62 | 19.1 | 15.9 | 127 | 4 | ||
| 2 1/2" | 7.5 | 1.12 | 4.12 | 3.94 | 1.62 | 2.94 | 8 | 0.88 | 3/4 | 5.88 | 13 |
| 190.5 | 28.4 | 104.6 | 100.1 | 41.1 | 74.7 | 22.4 | 19.1 | 149.4 | 6 | ||
| 3" | 8.25 | 1.25 | 5 | 4.62 | 1.81 | 3.57 | 8 | 0.88 | 3/4 | 6.62 | 16 |
| 209.6 | 31.8 | 127 | 117.3 | 46 | 90.7 | 22.4 | 19.1 | 168.1 | 7 | ||
| 3 1/2" | 9 | 1.38 | 5.5 | 5.25 | 1.94 | 4.07 | 8 | 1 | 7/8 | 7.25 | 21 |
| 228.6 | 35.1 | 139.7 | 133.4 | 49.3 | 103.4 | 25.4 | 22.2 | 184.2 | 10 | ||
| 4" | 10.75 | 1.5 | 6.19 | 6 | 2.12 | 4.57 | 8 | 1 | 7/8 | 8.5 | 37 |
| 273.1 | 38.1 | 157.2 | 152.4 | 53.8 | 116.1 | 25.4 | 22.2 | 215.9 | 17 | ||
| 5" | 13 | 1.75 | 7.31 | 7.44 | 2.38 | 5.66 | 8 | 1.12 | 1 | 10.5 | 63 |
| 330.2 | 44.5 | 185.7 | 189 | 60.5 | 143.8 | 28.4 | 25.4 | 266.7 | 29 | ||
| 6" | 14 | 1.88 | 8.5 | 8.75 | 2.62 | 6.72 | 12 | 1.12 | 1 | 11.5 | 80 |
| 355.6 | 47.8 | 215.9 | 222.3 | 66.5 | 170.7 | 28.4 | 25.4 | 292.1 | 36 | ||
| 8" | 16.5 | 2.19 | 10.62 | 10.75 | 3 | 8.72 | 12 | 1.25 | 1 1/8 | 13.75 | 115 |
| 419.1 | 55.6 | 269.7 | 273.1 | 76.2 | 221.5 | 31.8 | 28.6 | 349.3 | 52 | ||
| 10" | 20 | 2.5 | 12.75 | 13.5 | 3.38 | 10.88 | 16 | 1.38 | 1 1/4 | 17 | 170 |
| 508 | 63.5 | 323.9 | 342.9 | 85.9 | 276.4 | 35.1 | 31.8 | 431.8 | 77 | ||
| 12" | 22 | 2.62 | 15 | 15.75 | 3.62 | 12.88 | 20 | 1.38 | 1 1/4 | 19.25 | 200 |
| 558.8 | 66.5 | 381 | 400.1 | 91.9 | 327.2 | 35.1 | 31.8 | 489 | 91 | ||
| 14" | 23.75 | 2.75 | 16.25 | 17 | 3.69 | 14.14 | 20 | 1.5 | 1 3/8 | 20.75 | 230 |
| 603.3 | 69.9 | 412.8 | 431.8 | 93.7 | 359.2 | 38.1 | 34.9 | 527.1 | 104 | ||
| 16" | 27 | 3 | 18.5 | 19.5 | 4.19 | 16.16 | 20 | 1.62 | 1 1/2 | 23.75 | 330 |
| 685.8 | 76.2 | 469.9 | 495.3 | 106.4 | 410.5 | 41.1 | 38.1 | 603.3 | 150 | ||
| 18" | 29.25 | 3.25 | 21 | 21.5 | 4.62 | 18.18 | 20 | 1.75 | 1 5/8 | 25.75 | 400 |
| 743 | 82.6 | 533.4 | 546.1 | 117.3 | 461.8 | 44.5 | 41.3 | 654.1 | 181 | ||
| 20" | 32 | 3.5 | 23 | 24 | 5 | 20.2 | 24 | 1.75 | 1 5/8 | 28.5 | 510 |
| 812.8 | 88.9 | 584.2 | 609.6 | 127 | 513.1 | 44.5 | 41.3 | 723.9 | 231 | ||
| 24" | 37 | 4 | 27.25 | 28.25 | 5.5 | 24.25 | 24 | 2 | 1 7/8 | 33 | 730 |
| 939.8 | 101.6 | 692.2 | 717.6 | 139.7 | 616 | 50.8 | 47.6 | 838.2 | 331 |
