What is the function of the ASTM A350 LF2 threaded flange?
Can you weld A350 LF2 screwed flange?
| Type | Material | Sizes |
|---|---|---|
| Threaded / Screwed | ASTM A350 LF2 |
|
| Classes | ASME/ANSI | Impact Test Temperature |
| Class 1 and Class 2 |
|
-20 ℉ |
| Pressure Rating | Test Certificates | Surface Treatment |
| Class 150 to Class 2500 |
|
|
| Product | Price |
| 1/16 ASTM A350 LF2 FLANGE RTJ,10,000 PSI RATING,WITH API LP THREAD | US $82.04 per Piece |
| 50NB A350 LF2 THREADED FLANGE FF 150 | US $20.23 per Piece |
ASTM A350 LF2 threaded flanges
A350 LF2 threaded flange
SA 350 LF2 threaded Flange
ASTM A350 Gr LF2 threaded Flange
ASTM A350 LF2 Class 1 threaded Flange
ASME SA 350 LF2 Class 1 threaded Flange
NPS |
I.D. | O.D. | Bolt Circle (BC) | Raised Face (R) | Raised Face (RF) | H | Raised Face Thickness (T) | T1 | Flat Face Thickness (T2) | Bolt Hole (B) | No. of Bolt Holes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.93" | 3.50" | 2.38" | 1.38" | .063" | 1.19" | .62" | .38" | .56" | .62" | 4 |
| 3/4" | 1.14" | 3.88" | 2.75" | 1.69" | .063" | 1.50" | .62" | .44" | .56" | .62" | 4 |
| 1" | 1.41" | 4.25" | 3.12" | 2.00" | .063" | 1.94" | .69" | .50" | .63" | .62" | 4 |
| 1-1/4" | 1.75" | 4.62" | 3.50" | 2.50" | .063" | 2.31" | .81" | .56" | .75" | .62" | 4 |
| 1-1/2" | 1.99" | 5.00" | 3.88" | 2.88" | .063" | 2.56" | .88" | .62" | .82" | .62" | 4 |
| 2" | 2.50" | 6.00" | 4.75" | 3.62" | .063" | 3.06" | 1.00" | .69" | .94" | .75" | 4 |
| 2-1/2" | 3.00" | 7.00" | 5.50" | 4.12" | .063" | 3.56" | 1.12" | .82" | 1.06" | .75" | 4 |
| 3" | 3.63" | 7.50" | 6.00" | 5.00" | .063" | 4.25" | 1.19" | .88" | 1.13" | .75" | 4 |
| 3-1/2" | 4.13" | 8.50" | 7.00" | 5.50" | .063" | 4.81" | 1.25" | .88" | 1.19" | .75" | 8 |
| 4" | 4.63" | 9.00" | 7.50" | 6.19" | .063" | 5.31" | 1.31" | .88" | 1.25" | .75" | 8 |
| 5" | 5.69" | 10.00" | 8.50" | 7.31" | .063" | 6.44" | 1.44" | .88" | 1.38" | .88" | 8 |
| 6" | 6.75" | 11.00" | 9.50" | 8.50" | .063" | 7.56" | 1.56" | .94" | 1.50" | .88" | 8 |
| 8" | 8.75" | 13.50" | 11.75" | 10.62" | .063" | 9.69" | 1.75" | 1.06" | 1.69" | .88" | 8 |
| 10" | 10.88" | 16.00" | 14.25" | 12.75" | .063" | 12.00" | 1.94" | 1.13" | 1.88" | 1.00" | 12 |
| 12" | 12.94" | 19.00" | 17.00" | 15.00" | .063" | 14.38" | 2.19" | 1.19" | 2.13" | 1.00" | 12 |
| 14" | 14.19" | 21.00" | 18.75" | 16.25" | .063" | 15.75" | 2.25" | 1.32" | 2.19" | 1.12" | 12 |
| 16" | 16.19" | 23.50" | 21.25" | 18.50" | .063" | 18.00" | 2.50" | 1.38" | 2.44" | 1.12" | 16 |
| 18" | 18.19" | 25.00" | 22.75" | 21.00" | .063" | 19.88" | 2.69" | 1.50" | 2.63" | 1.25" | 16 |
| 20" | 20.19" | 27.50" | 25.00" | 23.00" | .063" | 22.00" | 2.88" | 1.63" | 2.83" | 1.25" | 20 |
| 22" | 22.19" | 29.50" | 27.25" | 25.25" | .063" | 24.25" | 3.13" | 1.75" | 3.07" | 1.38" | 20 |
| 24" | 24.19" | 32.00" | 29.50" | 27.25" | .063" | 26.12" | 3.25" | 1.82" | 3.19" | 1.38" | 20 |
| Element | Composition, w.t % |
| C | ≤0.30 |
| Ni | ≤0.40 |
| Mo | ≤0.12 |
| Cu | ≤0.40 |
| P | ≤0.035 |
| Cr | ≤0.30 |
| Si | 0.15-0.30 |
| Cb | ≤0.02 |
| V | ≤0.08 |
| S | ≤0.040 |
| Mn | 0.60-1.35 |
| N | ... |
| Grade/Class | Yield Strength, min. | Tensile Strength | Hardness | Elongation, min. | ||
| ksi | MPa | ksi | MPa | HBW | max. | % |
| LF2 CL2 | 36 | 250 | 70–95 | 485–655 | 197 | 22 |
| NPS | 150# (kg) | 300# (kg) | 400# (kg) | 600# (kg) |
| 1/2 | 0.5 | 0.9 | 0.9 | 0.9 |
| 3/4 | 0.9 | 1.4 | 1.4 | 1.4 |
| 1 | 0.9 | 1.4 | 1.6 | 1.8 |
| 1¼ | 1.4 | 2 | 2 | 2.3 |
| 1½ | 1.4 | 2.9 | 2.9 | 3.2 |
| 2 | 2.3 | 3.2 | 3.6 | 4.1 |
| 2½ | 3.6 | 4.5 | 5.4 | 5.9 |
| 3 | 4.1 | 6.3 | 6.8 | 7.2 |
| 3½ | 5.4 | 7.7 | 9.5 | 9.5 |
| 4 | 5.9 | 10.8 | 11.7 | 16.7 |
| 5 | 6.8 | 13.9 | 13.9 | 28.4 |
| 6 | 8.6 | 17.6 | 19.8 | 36 |
| 8 | 13.5 | 26.1 | 30.2 | 51.8 |
| 10 | 19.4 | 36.5 | 40 | 79.7 |
| 12 | 28.8 | 51.8 | 58.5 | 96.8 |
| 14 | 40.5 | 74.3 | 85 | 116.6 |
| 16 | 44.1 | 99 | 113.9 | 164.7 |
| 18 | 58.5 | 126 | 139.5 | 214.2 |
| 20 | 74.3 | 146.3 | 170.1 | 275.4 |
| 22 | 83.3 | 166.5 | 182.3 | 265.5 |
| 24 | 99 | 220.5 | 242.6 | 394.2 |
| Temperature (in F°) | 150# | 400# | 300# | 900# | 600# | 2500# | 1500# |
| < 100 | 285 | 985 | 740 | 2220 | 1480 | 6170 | 3705 |
| 200 | 260 | 905 | 680 | 2035 | 1360 | 5655 | 3395 |
| 300 | 230 | 870 | 655 | 1965 | 1310 | 5450 | 3270 |
| 400 | 200 | 845 | 635 | 1900 | 1265 | 5280 | 3170 |
| 500 | 170 | 805 | 605 | 1810 | 1205 | 5025 | 3015 |
| 600 | 140 | 755 | 570 | 1705 | 1135 | 4730 | 2840 |
| 650 | 125 | 730 | 550 | 1650 | 1100 | 4575 | 2745 |
| 700 | 110 | 710 | 530 | 1590 | 1060 | 4425 | 2655 |
| 750 | 95 | 675 | 505 | 1520 | 1015 | 4230 | 2535 |
| 800 | 80 | 550 | 410 | 1235 | 825 | 3430 | 2055 |
| 850 | 65 | 425 | 320 | 955 | 640 | 2655 | 1595 |
| 900 | 50 | 305 | 230 | 690 | 460 | 1915 | 1150 |
| 950 | 35 | 185 | 135 | 410 | 275 | 1145 | 685 |
| 1000 | 20 | 115 | 85 | 255 | 170 | 715 | 430 |
| Hydrostatic Test Pressure (in Psig) | 450 | 1500 | 1125 | 3350 | 2225 | 9275 | 5575 |
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