Table of Content
- How To Calculate Weld Neck Flange Weight?
- How to Calculate The Weight of Flange Circle?
- WNRF Flange Weight Chart
- What Factors Should Be Considered When Selecting A Flange Based On Its Weight?
- Things to Consider When Calculating the Forged Flanges Weight
- Flange Weight Calculator Formula
- Forged Flanges Weight Wise Price
- Slip On Flange Weight Calculator
- Blind Flange Weight Calculator
- Socket Weld Flange Weight Calculator
- Lap Joint Flange Weight Calculator
- Threaded Flange Weight Calculator
Check Free Online Weld Neck Flange Weight Calculator
Formula W1=0.0246615×(A−Tk)×Tk×0.01
Formula: square of diameter × thickness × 0.785 × density of alloy.
Flat Face Flange Weight Calculator
Blind Flange Weight Calculator
WNRF Flange Weight Calculator
Flat Face Flange Weight Calculator
Weight of finished part: 0 KG
Blind Flange Weight Calculator
Weight of finished part: 0 KG
Weld Neck Flange Weight Calculator
Weight of finished part: 0 KG
| NPS | Class 150 WNRF Flange Weight | Class 300 WNRF Flange Weight | Class 600 WNRF Flange Weight |
|---|---|---|---|
| 1/2 | 0.9 | 0.9 | 1.4 |
| 3/4 | 0.9 | 1.4 | 1.8 |
| 1 | 1.4 | 1.8 | 1.8 |
| 1¼ | 1.4 | 2.3 | 2.7 |
| 1½ | 1.8 | 3.2 | 3.6 |
| 2 | 2.7 | 4.1 | 5.4 |
| 2½ | 4.5 | 5.4 | 8.1 |
| 3 | 5.2 | 8.1 | 10.4 |
| 3½ | 5.4 | 9 | 11.7 |
| 4 | 7.4 | 11.9 | 18.9 |
| 5 | 9.5 | 16.2 | 30.6 |
| 6 | 11.7 | 20.3 | 36.5 |
| 8 | 18.9 | 31.1 | 54 |
| 10 | 24.3 | 45 | 85.5 |
| 12 | 39.6 | 63.9 | 101.7 |
| 14 | 51.3 | 92.7 | 156.2 |
| 16 | 63 | 112.5 | 216.5 |
| 18 | 74.3 | 144 | 249.8 |
| 20 | 88.7 | 180 | 310.5 |
| 22 | 101.3 | 209.3 | 324 |
| 24 | 120.6 | 261 | 439.7 |
| NPS | Class 900 WNRF Flange Weight | Class 1500 WNRF Flange Weight | Class 2500 WNRF Flange Weight |
|---|---|---|---|
| 1/2 | 3.2 | 3.2 | 3.6 |
| 3/4 | 3.2 | 3.2 | 4.1 |
| 1 | 3.8 | 4.1 | 5.9 |
| 1¼ | 4.5 | 4.5 | 9 |
| 1½ | 6.3 | 6.3 | 12.6 |
| 2 | 13.9 | 11.3 | 18.9 |
| 2½ | 16.2 | 16.2 | 23.4 |
| 3 | 4.1 | 21.6 | 42.3 |
| 3½ | - | - | - |
| 4 | 5.9 | 32.9 | 65.7 |
| 5 | 6.8 | 63 | 109.8 |
| 6 | 8.6 | 72 | 170.1 |
| 8 | 13.5 | 135.9 | 259.2 |
| 10 | 19.4 | 229.5 | 480.6 |
| 12 | 28.8 | 348.8 | 723.6 |
| 14 | 47.3 | 438.8 | - |
| 16 | 63 | 585 | - |
| 18 | 72 | 787.5 | - |
| 20 | 87.8 | 1001 | - |
| 22 | 110.3 | - | - |
| 24 | 123.8 | 1496 | - |
Size In Ready Stock :
- NPS: ½" to 24"
- PN2.5 To PN400
- DN15 To DN1500
Pressure Class :
- Class 150 & 300
- Class 600 & 900
- Class 1500 & 2500
Maximum Size :
- 26" To 60"
Manufacturing Process :
- Plate
- Forged
- Cast
Bolts Hole Number :
- 4 To 48
Finishing :
- Stock & Smooth
- Cold Water Finish
- Mirror Finish
- Spiral Serrated
- Concentric Serrated
Faces Types :
- RTJ Face
- RF Face
- FF Face
- Male & Female Face
- Tongue & Groove Face
Threads :
- NPT Threads
- BSP Threads
- FPT Threads
- BSPT Threads
- MPT & MNPT Threads
Thickness :
- SCH 10/ 20/ 40
- SCH 60/ 80/ 100
- SCH 120/ 140/ 180
Grade & Material:
- Stainless steel
- Carbon steel
- Alloy steel
- Nickel alloy
- Copper nickel
Types Of Coating :
- PE/ PTFE/ FBE coating
- Back painting
- Anti rust
- Zinc coatings
The materials used to construct a pipe flanges directly relate to the weight and the pressure it can handle. Take the stainless steel 304 flanges weight for example:
Also Refer Forged Flanges Weight Wise Price in Class 150 and Class 300
1/2" Blind Flange Weight
- Class & Face = 150# & RTJ
- Price = US $1.92
- Material = ASTM A105
- Weight = 0.49 KG
1” Blind Flange Weight
- Class & Face = 150# & RTJ
- Price = US $3.18
- Material = ASTM A105
- Weight = 0.99 KG
2 1/2” Blind Flange Weight
- Class & Face = 150# & RTJ
- Price = US $7.13
- Material = ASTM A105
- Weight = 4.22 KG
3” Slip On Flange Weight
- Class & Face = 150# & FF
- Price = $8.95
- Material = SS 304
- Weight = 4.10 KG
4” Slip On Flange Weight
- Class & Face = 150# & FF
- Price = US $13.00
- Material = SS 304
- Weight = 6.04 KG
6" Slip On Flange Weight
- Class & Face = 150# & FF
- Price = US $21.56
- Material = SS 304
- Weight = 7.78 KG
8” WNRF Flange Weight
- Class & Face = 300# & RF
- Price = US $203.92
- Material = Duplex 2205
- Weight = 19.11 KG
10” WNRF Flange Weight
- Class & Face = 300# & RF
- Price = US $278.55
- Material = Duplex 2205
- Weight = 26.19 KG
12” WNRF Flange Weight
- Class & Face = 300# & RF
- Price = US $431.80
- Material = Duplex 2205
- Weight = 40.93 KG
| NPS | Class 150 SORF Flange Weight | Class 300 SORF Flange Weight | Class 600 SORF Flange Weight |
|---|---|---|---|
| 1/2 | 0.5 | 0.9 | 0.9 |
| 3/4 | 0.9 | 1.4 | 1.4 |
| 1 | 0.9 | 1.4 | 1.8 |
| 1¼ | 1.4 | 2 | 2.3 |
| 1½ | 1.4 | 2.9 | 3.2 |
| 2 | 2.3 | 3.2 | 4.1 |
| 2½ | 3.6 | 4.5 | 5.9 |
| 3 | 4.1 | 5.9 | 7.2 |
| 3½ | 4 | 7.7 | 9.5 |
| 4 | 5.9 | 10.6 | 16.7 |
| 5 | 6.8 | 13.0 | 28.4 |
| 6 | 8.6 | 17.6 | 36 |
| 8 | 13.5 | 26.1 | 51.8 |
| 10 | 19.4 | 36.5 | 79.7 |
| 12 | 28.8 | 51.8 | 96.8 |
| 14 | 40.5 | 74.3 | 116.6 |
| 16 | 47.7 | 94.5 | 164.7 |
| 18 | 58.5 | 113.9 | 214.2 |
| 20 | 74.3 | 141.8 | 275.4 |
| 22 | 83.3 | 166.5 | 265.5 |
| 24 | 99 | 220.5 | 394.2 |
| NPS | Class 900 SORF Flange Weight | Class 1500 SORF Flange Weight | Class 2500 SORF Flange Weight |
|---|---|---|---|
| 1/2 | 2.7 | 2.7 | - |
| 3/4 | 2.7 | 2.7 | - |
| 1 | 3.4 | 3.6 | - |
| 1¼ | 4.5 | 4.5 | - |
| 1½ | 6.3 | 6.3 | - |
| 2 | 9.9 | 11.3 | - |
| 2½ | 13.9 | 16.2 | - |
| 3 | 16.2 | 21.6 | - |
| 3½ | - | - | - |
| 4 | 23.9 | 32.9 | - |
| 5 | 37.4 | 59.4 | - |
| 6 | 49.5 | 74.3 | - |
| 8 | 77.4 | 117 | - |
| 10 | 110.3 | 196.2 | - |
| 12 | 146.7 | 300.2 | - |
| 14 | 180 | 423 | - |
| 16 | 206.6 | 562.5 | - |
| 18 | 291.2 | 731.3 | - |
| 20 | 356.4 | 922.5 | - |
| 22 | - | - | - |
| 24 | 666 | 1271 | - |
View Blind Flange Weight Weight Formula in KG
| NPS | Class 150 BLRF Weight | Class 300 BLRF Weight | Class 600 BLRF Weight |
|---|---|---|---|
| 1/2 | 0.9 | 0.9 | 1.4 |
| 3/4 | 0.9 | 1.4 | 1.8 |
| 1 | 0.9 | 1.8 | 1.8 |
| 1¼ | 1.4 | 2.7 | 2.7 |
| 1½ | 1.8 | 3.2 | 3.6 |
| 2 | 2.3 | 3.6 | 4.5 |
| 2½ | 3.2 | 5.4 | 6.8 |
| 3 | 4.1 | 7.2 | 9 |
| 3½ | 5.9 | 9.5 | 13 |
| 4 | 7.7 | 12.6 | 18.5 |
| 5 | 9 | 16.7 | 30.6 |
| 6 | 12.2 | 22.5 | 38.7 |
| 8 | 21.2 | 36.5 | 63 |
| 10 | 31.5 | 55.8 | 103 |
| 12 | 55.4 | 83.3 | 132.8 |
| 14 | 63 | 112.5 | 170.1 |
| 16 | 81 | 141.8 | 237.2 |
| 18 | 99 | 186.3 | 299.3 |
| 20 | 128.3 | 231.8 | 384.8 |
| 22 | 159.8 | 288 | 450 |
| 24 | 193.5 | 360 | 562.5 |
| NPS | Class 900 BLRF Weight | Class 1500 BLRF Weight | Class 2500 BLRF Weight |
|---|---|---|---|
| 1/2 | 1.8 | 1.8 | 3.2 |
| 3/4 | 2.7 | 2.7 | 4.5 |
| 1 | 4.1 | 4.1 | 5.4 |
| 1¼ | 4.5 | 4.5 | 8.1 |
| 1½ | 6.3 | 6.3 | 11.3 |
| 2 | 11.3 | 11.3 | 17.6 |
| 2½ | 14.4 | 15.8 | 25.2 |
| 3 | 15.8 | 21.6 | 38.7 |
| 3½ | - | - | - |
| 4 | 22 | 32.9 | 59.9 |
| 5 | 36.5 | 63 | 100.4 |
| 6 | 47.3 | 72 | 155.3 |
| 8 | 85.5 | 135.9 | 239.8 |
| 10 | 124.7 | 229.5 | 461.3 |
| 12 | 166 | 348.8 | 658.8 |
| 14 | 186.8 | 438.8 | - |
| 16 | 219.6 | 585 | - |
| 18 | 301.5 | 787.5 | - |
| 20 | 390.6 | 1001 | - |
| 22 | - | 159.8 | - |
| 24 | 944.6 | 1631 | - |
| NPS | Class 150 SWRF Weight | Class 300 SWRF Weight | Class 600 SWRF Weight |
|---|---|---|---|
| 1/2 | 0.9 | 1.4 | 0.9 |
| 3/4 | 0.9 | 1.4 | 1.4 |
| 1 | 0.9 | 1.4 | 1.8 |
| 1¼ | 1.4 | 1.8 | 2.3 |
| 1½ | 1.4 | 2.7 | 3.2 |
| 2 | 2.3 | 3.2 | 4.1 |
| 2½ | 3.6 | 4.5 | 5.9 |
| 3 | 4.1 | 5.9 | 7.2 |
| 3½ | 4 | 7.7 | 9.5 |
| 4 | 5.9 | 9.9 | 16.7 |
| 5 | 6.8 | 12.6 | 28.4 |
| 6 | 8.6 | 17.6 | 36 |
| 8 | 13.5 | 26.1 | 51.8 |
| 10 | 19.4 | 36.5 | 79.7 |
| 12 | 28.8 | 51.8 | 96.8 |
| 14 | 40.5 | 74.3 | 116.6 |
| 16 | 44.1 | 85.5 | 164.7 |
| 18 | 58.5 | 112.5 | 214.2 |
| 20 | 74.3 | 141.8 | 275.4 |
| 22 | 83.3 | 166.5 | 265.5 |
| 24 | 99 | 213.8 | 394.2 |
| NPS | Class 900 SWRF Weight | Class 1500 SWRF Weight | Class 2500 SWRF Weight |
|---|---|---|---|
| 1/2 | 2.7 | 2.7 | - |
| 3/4 | 2.7 | 2.7 | - |
| 1 | 3.4 | 3.6 | - |
| 1¼ | 4.5 | 4.5 | - |
| 1½ | 6.3 | 6.3 | - |
| 2 | 9.9 | 11.3 | - |
| 2½ | 13.9 | 16.2 | - |
| 3 | 16.2 | 21.6 | - |
| 3½ | - | - | - |
| 4 | 23.9 | 32.9 | - |
| 5 | 37.4 | 59.4 | - |
| 6 | 49.5 | 74.3 | - |
| 8 | 77.4 | 117 | - |
| 10 | 110.3 | 196.2 | - |
| 12 | 300.2 | 55.4 | - |
| 14 | 423 | 63 | - |
| 16 | 562.5 | 81 | - |
| 18 | 291.2 | 731.3 | - |
| 20 | - | 922.5 | - |
| 22 | - | - | - |
| 24 | 666 | 1271 | - |
| NPS | Class 150 LJRF Weight | Class 300 LJRF Weight | Class 600 LJRF Weight |
|---|---|---|---|
| 1/2 | 0.5 | 0.9 | 0.9 |
| 3/4 | 0.9 | 1.4 | 1.4 |
| 1 | 0.9 | 1.4 | 1.8 |
| 1¼ | 1.4 | 2.1 | 2.3 |
| 1½ | 1.4 | 2.9 | 3.2 |
| 2 | 2.3 | 3.2 | 4.1 |
| 2½ | 3.6 | 4.5 | 5.4 |
| 3 | 4.1 | 6.5 | 6.8 |
| 3½ | 4 | 7.7 | 9 |
| 4 | 5.9 | 10.8 | 16.2 |
| 5 | 6.8 | 12.6 | 28.4 |
| 6 | 8.6 | 17.6 | 35.1 |
| 8 | 13.5 | 26.1 | 50.4 |
| 10 | 19.4 | 40 | 87.8 |
| 12 | 28.8 | 63 | 108 |
| 14 | 47.3 | 85.5 | 130.5 |
| 16 | 63 | 105.3 | 180 |
| 18 | 72 | 137.3 | 211.1 |
| 20 | 87.8 | 168.8 | 271.8 |
| 22 | 110.3 | 195.8 | 301.5 |
| 24 | 123.8 | 247.5 | 389.7 |
| NPS | Class 900 LJRF Weight | Class 1500 LJRF Weight | Class 2500 LJRF Weight |
|---|---|---|---|
| 1/2 | 2.7 | 2.7 | 3.2 |
| 3/4 | 2.7 | 2.7 | 3.6 |
| 1 | 3.4 | 3.6 | 5.4 |
| 1¼ | 4.5 | 4.5 | 7.7 |
| 1½ | 6.3 | 6.3 | 10.8 |
| 2 | 9.5 | 11.3 | 16.7 |
| 2½ | 11.3 | 15.8 | 23.9 |
| 3 | 13.0 | 21.2 | 36 |
| 3½ | - | - | - |
| 4 | 22 | 33.8 | 54.9 |
| 5 | 36.5 | 63 | 91.8 |
| 6 | 47.3 | 76.5 | 141.3 |
| 8 | 85.5 | 128.7 | 211.9 |
| 10 | 124.7 | 218.3 | 403.7 |
| 12 | 166 | 337.1 | 567.9 |
| 14 | 186.8 | 400.5 | - |
| 16 | 219.6 | 562.5 | - |
| 18 | 301.5 | 787.5 | - |
| 20 | 390.6 | 798.8 | - |
| 22 | - | - | - |
| 24 | 746.6 | 1271 | - |
| NPS | Class 150 THRF Flange Weight | Class 300 THRF Flange Weight | Class 600 THRF Flange Weight |
|---|---|---|---|
| 1/2 | 0.5 | 0.9 | 0.9 |
| 3/4 | 0.9 | 1.4 | 1.4 |
| 1 | 0.9 | 1.4 | 1.8 |
| 1¼ | 1.4 | 2 | 2.3 |
| 1½ | 1.4 | 2.9 | 3.2 |
| 2 | 2.3 | 3.2 | 4.1 |
| 2½ | 3.6 | 4.5 | 5.9 |
| 3 | 4.1 | 6.3 | 7.2 |
| 3½ | 5.4 | 7.7 | 9.5 |
| 4 | 5.9 | 10.8 | 16.7 |
| 5 | 6.8 | 13.9 | 28.4 |
| 6 | 8.6 | 17.6 | 36 |
| 8 | 13.5 | 26.1 | 51.8 |
| 10 | 19.4 | 36.5 | 79.7 |
| 12 | 28.8 | 51.8 | 96.8 |
| 14 | 40.5 | 74.3 | 116.6 |
| 16 | 44.1 | 99 | 164.7 |
| 18 | 58.5 | 126 | 214.2 |
| 20 | 74.3 | 146.3 | 275.4 |
| 22 | 83.3 | 166.5 | 265.5 |
| 24 | 99 | 220.5 | 394.2 |
| NPS | Class 900 THRF Flange Weight | Class 1500 THRF Flange Weight | Class 2500 THRF Flange Weight |
|---|---|---|---|
| 1/2 | 2.7 | 2.7 | 3.2 |
| 3/4 | 2.7 | 2.7 | 4.1 |
| 1 | 3.4 | 3.6 | 5.4 |
| 1¼ | 4.5 | 4.5 | 8.1 |
| 1½ | 6.3 | 6.3 | 11.3 |
| 2 | 9.9 | 11.3 | 17.1 |
| 2½ | 13.9 | 16.2 | 24.8 |
| 3 | 16.2 | 21.6 | 37.4 |
| 3½ | - | - | - |
| 4 | 23.9 | 32.9 | 57.2 |
| 5 | 37.4 | 59.4 | 94.5 |
| 6 | 49.5 | 74.3 | 145.4 |
| 8 | 77.4 | 117 | 218.3 |
| 10 | 110.3 | 196.2 | 416.3 |
| 12 | 146.7 | 300.2 | 585 |
| 14 | 180 | 423 | - |
| 16 | 206.6 | 562.5 | - |
| 18 | 291.2 | 731.3 | - |
| 20 | 356.4 | 922.5 | - |
| 22 | - | - | - |
| 24 | 666 | 1271.5 | - |
