What is the difference between ASTM A350 LF2 long weld neck flanges and weld neck flanges?
What are the 7 disadvantages of an A350 LF2 LWN flange?
What are the 4 features of SA 350 LF2 Raised face long weld neck flange?
Type | Sizes | Material |
---|---|---|
Weld Neck / WNRF |
|
ASTM A350 LF2 |
Pressure Rating | Face Types | Test Certificates |
Class 150 to Class 2500 |
|
|
Classes | Impact Test Temperature | ASME/ANSI |
Class 1 and Class 2 | -20 ℉ |
|
Product | Price |
A350 LF2 WELD NECK FLANGES RF 300 XS | US $8.94 per Kg |
A350 LF2 Weld Neck Flange RF Class 150 2 Inch Sch80/XS | US $9.04 per Kg |
ASTM A350 LF2 weld neck flanges
A350 LF2 weld neck flange
SA 350 LF2 weld neck Flange
ASTM A350 Gr LF2 weld neck Flange
ASTM A350 LF2 Class 1 weld neck Flange
ASME SA 350 LF2 Class 1 weld neck Flange
NPS | I.D. | O.D. | Bolt Circle (BC) |
Raised Face (R) |
Raised Face (RF) |
H | H1 | Raised Face Thickness (T) |
T1 | Flat Face Thickness (T2) |
Bolt Hole (B) |
No. of Bolt Holes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1/2" | 0.62" | 3.50" | 2.38" | 1.38" | .063" | 1.19" | 0.84" | 1.88" | .38" | 1.82" | .62" | 4 |
3/4" | 0.82" | 3.88" | 2.75" | 1.69" | .063" | 1.50" | 1.05" | 2.06" | .44" | 2.00" | .62" | 4 |
1" | 1.05" | 4.25" | 3.12" | 2.00" | .063" | 1.94" | 1.32" | 2.19" | .50" | 2.13" | .62" | 4 |
1-1/4" | 1.38" | 4.62" | 3.50" | 2.50" | .063" | 2.31" | 1.66" | 2.25" | .56" | 2.19" | .62" | 4 |
1-1/2" | 1.61" | 5.00" | 3.88" | 2.88" | .063" | 2.56" | 1.90" | 2.44" | .62" | 2.38" | .62" | 4 |
2" | 2.07" | 6.00" | 4.75" | 3.62" | .063" | 3.06" | 2.38" | 2.50" | .69" | 2.44" | .75" | 4 |
2-1/2" | 2.47" | 7.00" | 5.50" | 4.12" | .063" | 3.56" | 2.88" | 2.75" | .82" | 2.69" | .75" | 4 |
3" | 3.07" | 7.50" | 6.00" | 5.00" | .063" | 4.25" | 3.50" | 2.75" | .88" | 2.69" | .75" | 4 |
3-1/2" | 3.55" | 8.50" | 7.00" | 5.50" | .063" | 4.81" | 4.00" | 2.81" | .88" | 2.75" | .75" | 8 |
4" | 4.03" | 9.00" | 7.50" | 6.19" | .063" | 5.31" | 4.50" | 3.00" | .88" | 2.94" | .75" | 8 |
5" | 5.05" | 10.00" | 8.50" | 7.31" | .063" | 6.44" | 5.56" | 3.50" | .88" | 3.44" | .88" | 8 |
6" | 6.07" | 11.00" | 9.50" | 8.50" | .063" | 7.56" | 6.63" | 3.50" | .94" | 3.44" | .88" | 8 |
8" | 7.98" | 13.50" | 11.75" | 10.62" | .063" | 9.69" | 8.63" | 4.00" | 1.06" | 3.94" | .88" | 8 |
10" | 10.02" | 16.00" | 14.25" | 12.75" | .063" | 12.00" | 10.75" | 4.00" | 1.13" | 3.94" | 1.00" | 12 |
12" | 12.00" | 19.00" | 17.00" | 15.00" | .063" | 14.38" | 12.75" | 4.50" | 1.19" | 4.44" | 1.00" | 12 |
14" | 13.25" | 21.00" | 18.75" | 16.25" | .063" | 15.75" | 14.00" | 5.00" | 1.32" | 4.94" | 1.12" | 12 |
16" | 15.25" | 23.50" | 21.25" | 18.50" | .063" | 18.00" | 16.00" | 5.00" | 1.38" | 4.94" | 1.12" | 16 |
18" | 17.25" | 25.00" | 22.75" | 21.00" | .063" | 19.88" | 18.00" | 5.50" | 1.50" | 5.44" | 1.25" | 16 |
20" | 19.25" | 27.50" | 25.00" | 23.00" | .063" | 22.00" | 20.00" | 5.69" | 1.63" | 5.63" | 1.25" | 20 |
22" | 21.25" | 29.50" | 27.25" | 25.25" | .063" | 24.25" | 22.00" | 5.88" | 1.75" | 5.82" | 1.38" | 20 |
24" | 23.25" | 32.00" | 29.50" | 27.25" | .063" | 26.12" | 24.00" | 6.00" | 1.82" | 5.94" | 1.38" | 20 |
Element | Composition, w.t % |
C | ≤0.30 |
Ni | ≤0.40 |
P | ≤0.035 |
Cr | ≤0.30 |
Mo | ≤0.12 |
Cu | ≤0.40 |
S | ≤0.040 |
Mn | 0.60-1.35 |
Si | 0.15-0.30 |
Cb | ≤0.02 |
V | ≤0.08 |
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 |
DIMENSIONS | NOMINAL SIZE | WEIGHT (KG) | ||
---|---|---|---|---|
FLANGE MM |
FLANGE THICKNESS |
NPS (Inches) |
DN (mm) | WN |
88.9 | 11.2 | 1/2 | 15 | 0.5 |
98.6 | 12.7 | 3/4 | 20 | 0.7 |
108 | 14.2 | 1 | 25 | 1 |
117.3 | 15.7 | 1 1/4 | 32 | 1.3 |
127 | 17.5 | 1 1/2 | 40 | 1.7 |
152.4 | 19.1 | 2 | 50 | 2.6 |
177.8 | 22.4 | 2 1/2 | 65 | 4.1 |
190.5 | 23.9 | 3 | 80 | 4.9 |
215.9 | 23.9 | 3 1/2 | 90 | 6.1 |
228.6 | 23.9 | 4 | 100 | 6.8 |
254 | 23.9 | 5 | 125 | 8.6 |
279.4 | 25.4 | 6 | 150 | 10.6 |
342.9 | 28.4 | 8 | 200 | 17.6 |
406.4 | 30.2 | 10 | 250 | 24 |
482.6 | 31.8 | 12 | 300 | 36.5 |
533.4 | 35.1 | 14 | 350 | 48.4 |
596.9 | 36.6 | 16 | 400 | 60.6 |
635 | 39.6 | 18 | 450 | 68.3 |
698.5 | 42.9 | 20 | 500 | 84.5 |
812.8 | 47.8 | 24 | 600 | 115 |
Temperature in C° | 150# | 1500# | 300# | 2500# | 900# | 600# | 400# |
-29 / 38 | 19.6 | 255.3 | 51.1 | 425.5 | 153.2 | 102.1 | 68.1 |
50 | 19.2 | 250.6 | 50.1 | 417.7 | 150.4 | 100.2 | 66.8 |
100 | 17.7 | 233 | 46.6 | 388.3 | 139.8 | 93.2 | 62.1 |
150 | 15.8 | 225.4 | 45.1 | 375.6 | 135.2 | 90.2 | 60.1 |
200 | 13.8 | 219 | 43.8 | 365 | 131.4 | 87.6 | 58.4 |
250 | 12.1 | 209.7 | 41.9 | 349.5 | 125.8 | 83.9 | 55.9 |
300 | 10.2 | 199.1 | 39.8 | 331.8 | 119.5 | 79.6 | 53.1 |
325 | 9.3 | 193.6 | 38.7 | 322.6 | 116.1 | 77.4 | 51.6 |
350 | 8.4 | 187.8 | 37.6 | 313 | 112.7 | 75.1 | 50.1 |
375 | 7.4 | 181.8 | 36.4 | 303.1 | 109.1 | 72.7 | 48.5 |
400 | 6.5 | 173.6 | 34.7 | 289.3 | 104.2 | 69.4 | 46.3 |
425 | 5.5 | 143.8 | 28.8 | 239.7 | 86.3 | 57.5 | 38.4 |
450 | 4.6 | 115 | 23 | 191.7 | 69 | 46 | 30.7 |
475 | 3.7 | 87.2 | 17.4 | 145.3 | 52.3 | 34.9 | 23.2 |
500 | 2.8 | 58.8 | 11.8 | 97.9 | 35.3 | 23.5 | 15.7 |
Flange NPS | Bolt Circle (BC) |
Outside Diameter |
Inside Diameter |
Raised Face (RF) |
Raised Face (R) |
H1 | H | Flat Face Thickness (T2) |
T1 | Raised Face Thickness (T) |
Bolt Hole (B) |
No. of Bolt Holes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1/2" | 3.25" | 4.75" | 0.55" | .250" | 1.38" | 0.84" | 1.50" | 2.38" | 0.88" | 2.63" | 0.88" | 4 |
3/4" | 3.50" | 5.13" | 0.74" | .250" | 1.69" | 1.05" | 1.75" | 2.75" | 1.00" | 3.00" | 0.88" | 4 |
1" | 4.00" | 5.88" | 0.96" | .250" | 2.00" | 1.32" | 2.06" | 2.88" | 1.13" | 3.13" | 1.00" | 4 |
1-1/4" | 4.38" | 6.25" | 1.28" | .250" | 2.50" | 1.66" | 2.50" | 2.88" | 1.13" | 3.13" | 1.00" | 4 |
1-1/2" | 4.88" | 7.00" | 1.50" | .250" | 2.88" | 1.90" | 2.75" | 3.25" | 1.25" | 3.50" | 1.13" | 4 |
2" | 6.50" | 8.50" | 1.94" | .250" | 3.63" | 2.38" | 4.13" | 4.00" | 1.50" | 4.25" | 1.00" | 8 |
2-1/2" | 7.50" | 9.63" | 2.32" | .250" | 4.13" | 2.88" | 4.88" | 4.13" | 1.63" | 4.38" | 1.13" | 8 |
3" | 8.00" | 10.50" | 2.90" | .250" | 5.00" | 3.50" | 5.25" | 4.63" | 1.88" | 4.88" | 1.25" | 8 |
4" | 9.50" | 12.25" | 3.83" | .250" | 6.19" | 4.50" | 6.38" | 4.88" | 2.13" | 5.13" | 1.38" | 8 |
5" | 11.50" | 14.75" | 4.81" | .250" | 7.31" | 5.56" | 7.75" | 6.13" | 2.88" | 6.38" | 1.63" | 8 |
6" | 12.50" | 15.50" | 5.76" | .250" | 8.50" | 6.63" | 9.00" | 6.75" | 3.25" | 7.00" | 1.50" | 12 |
8" | 15.50" | 19.00" | 7.63" | .250" | 10.63" | 8.63" | 11.50" | 8.38" | 3.63" | 8.63" | 1.75" | 12 |
10" | 19.00" | 23.00" | 9.75" | .250" | 12.75" | 10.75" | 14.50" | 10.00" | 4.25" | 10.25" | 2.00" | 12 |
12" | 22.50" | 26.50" | 11.75" | .250" | 15.00" | 12.75" | 17.75" | 11.13" | 4.88" | 11.38" | 2.13" | 16 |
14" | 25.00" | 29.50" | 13.00" | .250" | 16.25" | 14.00" | 19.50" | 11.75" | 5.25" | 12.00" | 2.38" | 16 |
16" | 27.75" | 32.50" | 15.00" | .250" | 18.50" | 16.00" | 21.75" | 12.25" | 5.75" | 12.50" | 2.63" | 16 |
18" | 30.50" | 36.00" | 17.00" | .250" | 21.00" | 18.00" | 23.50" | 12.88" | 6.38" | 13.13" | 2.88" | 16 |
20" | 32.75" | 38.75" | 19.00" | .250" | 23.00" | 20.00" | 25.25" | 14.00" | 7.00" | 14.25" | 3.13" | 16 |
24" | 39.00" | 46.00" | 23.00" | .250" | 27.25" | 24.00" | 30.00" | 16.00" | 8.00" | 16.25" | 3.63" | 16 |
Flange NPS | Inside Diameter |
Bolt Circle (BC) |
Outside Diameter |
Raised Face (RF) |
Raised Face (R) |
H1 | H | T1 | Raised Face Thickness (T) |
Bolt Hole (B) |
Flat Face Thickness (T2) |
No. of Bolt Holes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1/2" | 0.55" | 3.50" | 5.25" | .250" | 1.38" | 0.84" | 1.69" | 1.19" | 3.13" | 0.88" | 2.88" | 4 |
3/4" | 0.74" | 3.75" | 5.50" | .250" | 1.69" | 1.05" | 2.00" | 1.25" | 3.38" | 0.88" | 3.13" | 4 |
1" | 0.96" | 4.25" | 6.25" | .250" | 2.00" | 1.32" | 2.25" | 1.38" | 3.75" | 1.00" | 3.50" | 4 |
1-1/4" | 1.28" | 5.13" | 7.25" | .250" | 2.50" | 1.66" | 2.88" | 1.50" | 4.00" | 1.13" | 3.75" | 4 |
1-1/2" | 1.50" | 5.75" | 8.00" | .250" | 2.88" | 1.90" | 3.13" | 1.75" | 4.63" | 1.25" | 4.38" | 4 |
2" | 1.94" | 6.75" | 9.25" | .250" | 3.63" | 2.38" | 3.75" | 2.00" | 5.25" | 1.13" | 5.00" | 8 |
2-1/2" | 2.32" | 7.75" | 10.50" | .250" | 4.13" | 2.88" | 4.50" | 2.25" | 5.88" | 1.25" | 5.63" | 8 |
3" | 2.90" | 9.00" | 12.00" | .250" | 5.00" | 3.50" | 5.25" | 2.63" | 6.88" | 1.38" | 6.63" | 8 |
4" | 3.83" | 10.75" | 14.00" | .250" | 6.19" | 4.50" | 6.50" | 3.00" | 7.75" | 1.63" | 7.50" | 8 |
5" | 4.81" | 12.75" | 16.50" | .250" | 7.31" | 5.56" | 8.00" | 3.63" | 9.25" | 1.88" | 9.00" | 8 |
6" | 5.76" | 14.50" | 19.00" | .250" | 8.50" | 6.63" | 9.25" | 4.25" | 11.00" | 2.13" | 10.75" | 8 |
8" | 7.63" | 17.25" | 21.75" | .250" | 10.63" | 8.63" | 12.00" | 5.00" | 12.75" | 2.13" | 12.50" | 12 |
10" | 9.75" | 21.25" | 26.50" | .250" | 12.75" | 10.75" | 14.75" | 6.50" | 16.75" | 2.63" | 16.50" | 12 |
12" | 11.75" | 24.38" | 30.00" | .250" | 15.00" | 12.75" | 17.38" | 7.25" | 18.50" | 2.88" | 18.25" | 12 |
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