ASTM A350 LF2 Flanges
Suppliers and manufacturer of blind flange Material a350 lf2 with Exceptional sizes, standard, and Quality
carbon steel a350 lf2 flanges are made up of mild steel or carbon steel material grades. Viha Steel & Forging is a leading manufacturer and supplier of the different types of class1 and class 2 flanges from the carbon steels. The a350 lf2 cl1 flange is the most common while the class 2 flanges are stronger and harder. They are used under special requirements.
The flanges range in size from ½ inches to 48 inches. And the dimensions of the blind flange a350 lf2 flanges vary according to the standards, ASME B16.5, B16.48, BS4504, BS 10, EN-1092 and others. The pressure classes of the flanges can range from 105 to 2500. The pressure can also be expressed in other units such as bars or K for various regions.There are a350 lf2 plate flanges, welded flanges and screwed flanges.
welded flanges are used to make sure that the connection is strong. The a350 lf2 welding neck flange is one of those welded flanges which can perform very well. The forged, threaded or screwed flanges are useful in different opportunities. The flat face, raised face and ring type joint face types are availab.e. The sa-350 lf2 flange ring type joint is fitted in two parts and will be connected to the piping application with welding. There are different types, shapes and sizes of the cs astm a350 gr lf2 and others with their relative prices. Please feel free to contact us for information you need.
Table Of Content
| ASTM A350 Lf2 Material: | ASTM A350 LF2 Class 1/ Cl 2 |
|---|---|
| ASTM A350 Lf2 Class 1 Size Range: | From 1/2 inch (15 NB) upto 48 inch (1200NB), ASME B16.47 Flanges size range: 26 inch to 60 inch |
| LTCS ASTM A350 LF2 Blind Flange Class / Pressure: | 150#, 600 lb, 300#, 1500#, 2500 lb, Class 900, PN10, PN6, PN16, PN40, PN25, PN64 etc. |
| Flange Face Type: | Flate Face (FF), Ring Type Joint (RTJ), Raised Face (RF), LJ, FM, and so on |
| AWWA Class LTCS ASTM A350 LF2 Flanges: | classes B, F, D, E, Size: 3 inch - 144 inch |
| ASTM A350 Lf2 Flanges Standard: | ASME Flanges, ANSI Flanges, DIN Flanges, BS Flanges, EN Flanges, etc. |
| Wn Flange LF2 Specialized in: | ASTM A105/ 105N SORF, SASTM A350 Lf2 Class 1 SWRF, ASTM A350 Gr Lf2 Class 1 WNRF, SASTM A350 Lf2 Cl2 SWFF, ASTM A350 Gr Lf2 BLRF, SASTM A350 Lf2 WNFF, ASTM A350 Lf2 Forgings SOFF, SASTM A350 Lf2 Steel Threaded RF, ASTM A350 Gr Lf2 Cl1 BLFF, ASTM A350-Lf2-1 Threaded FF & LJ |
| ANSI Class LTCS ASTM A350 LF2 Flanges: | 150 to 2500 Size: 1/2"-24" |
A350 LF2 Carbon Steel Forged and Plate Flanges
| ASTM A350 LF2 Carbon Steel Flanges | |
| ASTM A350 LF2 Carbon Steel Blind Flanges | ASTM A350 LF2 Carbon Steel Reducing Flanges |
| ASTM A350 LF2 Carbon Steel Lap Joint Flanges | ASTM A350 LF2 Carbon Steel Plate Flanges |
| ASTM A350 LF2 Carbon Steel Orifice Flanges | ASTM A350 LF2 Carbon Steel Forged Flanges |
| ASTM A350 LF2 Carbon Steel Slip-On Flanges | ASTM A350 LF2 Carbon Steel Flanges |
| ASTM A350 LF2 Carbon Steel Weld Neck Flanges | ASTM A350 LF2 Carbon Steel Socket Weld Flanges |
| ASTM A350 LF2 Carbon Steel Ring Type Joint Flanges | |
Always check ASME SA 350 lf2 Weld Neck Flange Dimensions and weight before buying material
Decription |
Astm A350 Lf2 Flanges Price list |
| ASTM A350 Lf2 Carbon Steel Low Temperature Lf2 Flange | US $ 1 / Piece |
| ASTM A350 Lf2 - Cl. 1 Steel Blind Flange | US $ 650-1050 / Piece |
| ASTM A350 Lf1 Lf2 Cl1/Cl2 16mn 20# Carbon Steel Flange |
US $ 5-6.5 / Piece |
| Flange Wnrfcl150 ASTM A350 Gr. Lf2 Asme B16.5 | US $ 20 / Piece |
| ASTM A350 Lf2 Weld Neck Flange Nace Mr-0175 |
US $ 0.45-0.5 / Piece |
| ASTM A350 Lf2 Welding Neck Flange |
US $ 0.5-200 / Piece |
| API ASTM A350 Lf2 Corrosion Resistance Weld Neck Flange |
US $ 30 / Piece |
| ASTM A350 -Lf2/Lf3 B16.5 Alloy Steel Forged Flange |
US $ 2 / Piece |
| ASTM A350 Lf2 Steel Flange |
US $ 92-100 / Piece |
ASME SA 350 GR LF2 Weld Neck Flange
Carbon Steel A350 LF2 Flanges
ASTM A350 LF2 Class 1 Flange
ASTM A350 LF2 Blind Flange
Carbon Steel A350 LF2 Slip On Flanges
ASTM A350 Grade LF2 Class 2 Pipe Flange
Sa350 Gr Lf2 Forged Flange
A350 Lf2 Killed Carbon Steel Flanges
| Grade/Class | Tensile Strength | Yield Strength, min. | Elongation, min. | Hardness, max. | ||
| ksi | MPa | ksi | MPa | % | HBW | |
| LF2 CL1 | 70–95 | 485–655 | 36 | 250 | 22 | 197 |
| LF2 CL2 | 70–95 | 485–655 | 36 | 250 | 22 | 197 |
| C% | Mn% | Si% | S% | P% | Cr% | Ni% |
| 0.30 max | 0.6/1.35 | .15/.30 | .040 max | .035 max | 0.30 max | 0.40 max |
A350 LF2 Blind Flange Thermal Properties
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@0-100°C/32-212°F) | 10.4 µm/m°C | 5.78 µin/in°F |
| Thermal conductivity | 21.6 W/mK | 150 BTU in/hr.ft².°F |
Physical Properties of blind flange a350 lf2
- Class 1 HB: after heat treatment
- Yield Strength: > 250 MPa
- Tensile Strength: 485 - 655 MPa
- Elongation: > 22 %
- Hardness HB: < 197
- Reduction of area: > 30 %
- Impact energy KV -50°F [-45°С]: > 16 J
TEMP °C |
150 |
300 |
400 |
600 |
900 |
1500 |
2500 |
-29 TO 38 |
19.6 |
51.1 |
68.1 |
102.1 |
153.2 |
255.3 |
425.5 |
50 |
19.2 |
50.1 |
66.8 |
100.2 |
150.4 |
250.6 |
417.7 |
100 |
17.7 |
46.6 |
62.1 |
93.2 |
139.8 |
233 |
388.3 |
150 |
15.8 |
45.1 |
60.1 |
90.2 |
135.2 |
225.4 |
375.6 |
200 |
13.8 |
43.8 |
58.4 |
87.6 |
131.4 |
219 |
365 |
250 |
12.1 |
41.9 |
55.9 |
83.9 |
125.8 |
209.7 |
349.5 |
300 |
10.2 |
39.8 |
53.1 |
79.6 |
119.5 |
199.1 |
331.8 |
325 |
9.3 |
38.7 |
51.6 |
77.4 |
116.1 |
193.6 |
322.6 |
350 |
8.4 |
37.6 |
50.1 |
75.1 |
112.7 |
187.8 |
313 |
375 |
7.4 |
36.4 |
48.5 |
72.7 |
109.1 |
181.8 |
303.1 |
400 |
6.5 |
34.7 |
46.3 |
69.4 |
104.2 |
173.6 |
289.3 |
425 |
5.5 |
28.8 |
38.4 |
57.5 |
86.3 |
143.8 |
239.7 |
450 |
4.6 |
23 |
30.7 |
46 |
69 |
115 |
191.7 |
475 |
3.7 |
17.4 |
23.2 |
34.9 |
52.3 |
87.2 |
145.3 |
500 |
2.8 |
11.8 |
15.7 |
23.5 |
35.3 |
58.8 |
97.9 |
538 |
1.4 |
5.9 |
7.9 |
11.8 |
17.7 |
29.5 |
49.2 |
TEMP °C |
150 |
300 |
400 |
600 |
900 |
1500 |
2500 |
If you need Carbon Steel A350 LF2 Flanges We can supply in nearly any size, no matter how small the size or quantity.
| ANSI/ ASME B16.5 | Blind Flange, Slip on Flange, Lap Joint Flange, Welding Neck Flange, High Hub Blind Flange, Socket Weld Flange, Threaded Flange, Ring Type Joint Flange |
| BS 1560 BOSS | Welding Neck Flange, Socket Welding Flange, Slip-On Flange, Blind Flange, Screwed Boss Flange, Lapped Flange |
| PRESSURE CLASS | PN 2.5, 40, 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ ANSI B 16.47 | Welding Neck Flange, Blind Flange [Series A & B] |
| BS10 | Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ ANSI B 16.36 | Welding Neck Flange, Slip on Flange, Threaded Flange |
| BS 4504[PART 1] | Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange |
| BS 4504 SEC 3.1 | Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange |
| TABLE | E, D, F, H |
| DIN FLANGES | DIN 2527, 2642, 2655, 2573, 2576, 2641, 2566, 2656, 2627, 2631, 2628, 2629, 2635, 2632, 2633, 2634, 2636, 2637, 2638, 2673 |
| AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) |
|
|---|
| Nom. Pipe Size | Min. Socket Dia. | Nom. Bore Dia. | A | B | C | D | E | F | G | H | J | K | L | M | N | O | P |
| PRESSURE CLASS 3000 | |||||||||||||||||
| 1/8 | 0.42 | 0.269 | 0.8 | 0.9 | 0.7 | 0.9 | 0.4 | 0.3 | 1.1 | 0.8 | 0.4 | 0.7 | |||||
| 1/4 | 0.555 | 0.364 | 0.8 | 0.9 | 0.7 | 0.9 | 0.4 | 0.3 | 1.1 | 0.9 | 1.62 | 0.7 | 1.25 | 0.3 | 0.4 | 0.9 | 0.8 |
| 3/8 | 0.69 | 0.493 | 0.9 | 1.1 | 0.7 | 1.1 | 0.5 | 0.3 | 1.1 | 1.1 | 1.88 | 0.8 | 1.44 | 0.4 | 0.4 | 1.3 | 0.8 |
| 1/2 | 0.855 | 0.622 | 1.1 | 1.3 | 0.8 | 1.3 | 0.6 | 0.4 | 1.3 | 1.3 | 2.06 | 0.8 | 1.62 | 0.4 | 0.4 | 1.3 | 0.8 |
| 3/4 | 1.065 | 0.824 | 1.3 | 1.5 | 1 | 1.5 | 0.8 | 0.5 | 1.5 | 1.5 | 2.53 | 1 | 2 | 0.4 | 0.6 | 1.5 | 1 |
| 1 | 1.33 | 1.049 | 1.4 | 1.8 | 1.1 | 1.8 | 0.9 | 0.6 | 1.6 | 1.9 | 2.94 | 1.1 | 2.38 | 0.5 | 0.6 | 1.8 | 1 |
| 1 1/4 | 1.675 | 1.38 | 1.7 | 2.3 | 1.2 | 2.3 | 1.1 | 0.7 | 1.6 | 2.3 | 3.44 | 1.3 | 2.81 | 0.6 | 0.6 | 2.3 | 1.1 |
| 1 1/2 | 1.915 | 1.61 | 1.9 | 2.5 | 1.3 | 2.5 | 1.3 | 0.8 | 1.6 | 2.5 | 3.88 | 1.4 | 3.19 | 0.7 | 0.6 | 2.5 | 1.1 |
| 2 | 2.406 | 2.067 | 2.3 | 3.1 | 1.7 | 3.1 | 1.5 | 1 | 2.1 | 3 | 4.69 | 1.6 | 3.88 | 0.8 | 0.7 | 3.1 | 1.3 |
| 2 1/2 | 2.906 | 2.469 | 2.9 | 3.6 | 2 | 4 | 1.6 | 1.1 | 2.1 | 3.6 | 6.88 | 2.1 | 5.94 | 1.2 | 0.7 | 3.6 | 1.3 |
| 3 | 3.535 | 3.068 | 3.3 | 4.3 | 2.4 | 4.6 | 2.3 | 1.3 | 2.1 | 4.4 | 8.5 | 2.5 | 7.25 | 1.3 | 0.7 | 5.1 | 1.4 |
| 4 | 4.545 | 4.026 | 4.2 | 5.8 | 3.1 | 5.8 | 2.6 | 1.6 | 2.4 | 5.5 | 13.6 | 4 | 12.1 | 2.5 | 0.8 | 6.8 | 1.6 |
| PRESSURE CLASS 6000 | |||||||||||||||||
| 3/8 | 0.69 | 0.344 | 1.1 | 1.3 | 0.9 | 1.3 | 0.6 | 0.4 | 1.1 | 1.3 | 2.12 | 0.9 | 1.5 | 0.3 | 0.4 | 1.3 | 0.9 |
| 1/2 | 0.855 | 0.464 | 1.3 | 1.5 | 1 | 1.5 | 0.8 | 0.5 | 1.3 | 1.5 | 2.56 | 1 | 2 | 0.4 | 0.4 | 1.5 | 0.9 |
| 3/4 | 1.065 | 0.612 | 1.5 | 1.8 | 1.1 | 1.8 | 0.9 | 0.6 | 1.5 | 1.8 | 3 | 1.1 | 2.38 | 0.5 | 0.6 | 1.8 | 1.1 |
| 1 | 1.33 | 0.815 | 1.7 | 2.3 | 1.3 | 2.3 | 1.1 | 0.7 | 1.6 | 2.3 | 3.5 | 1.3 | 2.81 | 0.6 | 0.6 | 2.3 | 1.2 |
| 1 1/4 | 1.675 | 1.16 | 2 | 2.5 | 1.3 | 2.5 | 1.3 | 0.8 | 1.6 | 2.5 | 3.94 | 1.4 | 3.19 | 0.7 | 0.6 | 2.5 | 1.2 |
| 1 1/2 | 1.915 | 1.338 | 2.3 | 3.1 | 1.7 | 3.1 | 1.5 | 1 | 1.6 | 3 | 4.75 | 1.7 | 3.88 | 0.8 | 0.6 | 3.1 | 1.3 |
| 2 | 2.406 | 1.687 | 2.5 | 3.4 | 1.8 | 3.4 | 1.6 | 1.1 | 2.1 | 3.6 | 6.88 | 2.1 | 6 | 1.3 | 0.7 | 3.6 | 1.4 |
| 2 1/2 | 2.906 | 2.125 | 3.2 | 4 | 2 | 4 | 2.3 | 1.3 | 2.1 | 4.3 | 8.5 | 2.5 | 7.5 | 1.5 | 0.7 | 5.1 | 1.4 |
| 3 | 3.535 | 2.624 | 3.7 | 4.8 | 2.4 | 4.6 | 2.5 | 1.4 | 2.1 | 5 | 8.5 | 2.5 | 7.25 | 1.3 | 0.7 | 5.1 | 1.6 |
| 4 | 4.545 | 3.438 | 4.5 | 6 | 3.1 | 5.8 | 2.6 | 1.6 | 2.4 | 6.3 | 13.6 | 4 | 12.1 | 2.5 | 0.8 | 6.8 | 1.8 |
Flange Schedule/Class |
Pipe Size - Pipe Flanges |
Flange Connection Type |
Flange Material |
Max. Pressure |
|---|---|---|---|---|
| ASME B16.5 Class 150 | 1/2" |
FNPT |
A350 LF2 Carbon Steel Flanges | 150 psi |
1/2" |
Socket Weld |
275 psi |
||
1/2" |
Welded |
150 psi |
||
3/4" |
FNPT |
150 psi |
||
3/4" |
Socket Weld |
275 psi |
||
1-1/4" |
Socket Weld |
275 psi |
||
1-1/2" |
Socket Weld |
275 psi |
||
2" |
FNPT |
150 psi |
||
2" |
Socket Weld |
275 psi |
||
2-1/2" |
Socket Weld |
275 psi |
||
3" |
Socket Weld |
275 psi |
||
4" |
FNPT |
150 psi |
||
4" |
Socket Weld |
275 psi |
||
| ASME B16.5 Class 300 | 1/2" |
Slip On |
720 psi |
|
1/2" |
Slip On |
720 psi |
||
1" |
Slip On |
720 psi |
||
1" |
Slip On |
720 psi |
||
1-1/4" |
FNPT |
720 psi |
||
1-1/4" |
Slip On |
720 psi |
||
1-1/2" |
Slip On |
720 psi |
||
1-1/2" |
Slip On |
720 psi |
||
2" |
Slip On |
720 psi |
||
2" |
Slip On |
720 psi |
||
2-1/2" |
Slip On |
720 psi |
||
2-1/2" |
Slip On |
720 psi |
||
3" |
Slip On |
720 psi |
||
3" |
Slip On |
720 psi |
||
4" |
Slip On |
720 psi |
||
4" |
Slip On |
720 psi |
We have a large inventory of astm a350 lf2 cl1 in almost all sizes, call us to know more about Ready stock and updated price list
Weight Chart of cs astm a350 gr lf2 Flanges
Standard |
Class |
Diameter |
Bolt Circle Diameter |
Number of Bolts |
Bolt Size |
Diameter of Bolt Hole |
|---|---|---|---|---|---|---|
AS4087 |
PN14 |
95 |
67 |
4 |
M12 |
14 |
AS 2129 Flange |
Table C |
95 |
67 |
4 |
13 |
14 |
Table D |
95 |
67 |
4 |
13 |
14 |
|
Table E |
95 |
67 |
4 |
13 |
14 |
|
Table F |
95 |
67 |
4 |
13 |
14 |
|
Table H |
114 |
83 |
4 |
16 |
17 |
|
Table J |
114 |
83 |
4 |
16 |
17 |
|
ASTM B16.5 |
ASTM 150 |
89 |
60 |
4 |
13 |
16 |
ASTM 300 |
95 |
67 |
4 |
13 |
16 |
|
ASTM 600 |
95 |
67 |
4 |
13 |
16 |
|
ASTM 900 |
121 |
83 |
4 |
19 |
22 |
|
ASTM 1500 |
121 |
83 |
4 |
19 |
22 |
|
ISO 7005 (DIN) Flange |
PN6 |
80 |
55 |
4 |
M10 |
11 |
PN10 |
95 |
65 |
4 |
M12 |
14 |
|
PN16 |
95 |
65 |
4 |
M12 |
14 |
|
PN20 |
90 |
60.5 |
4 |
M14 |
16 |
|
PN25 |
95 |
65 |
4 |
M12 |
14 |
|
PN40 |
95 |
65 |
4 |
M12 |
14 |
find here Carbon Steel A350 LF2 Slip On Flanges equivalent material, Material specification and dimensions table
Bulk Stock Of astm a350 lf2 flanges
| A350 LF2 ½" Flanges | DN600/ ASTM A350 Steel Flanges |
| DN100/ ASTM A350-1 Forged Flanges | astm a350 gr 5" Flanges |
| DN32/ CS A350 Lf2 Flange | DN125/ ASTM A350 Cl.1 Plate Flanges |
| DN150/ ASTM A350 Lf2 Class 1 Material | DN500/ Ltcs Astm A350 LF2 Flanges |
| DN65/ A350 Gr Lf2 Cl1 Weld Neck Flanges | ASTM A350 LF2 LTCS ¾" Flanges |
| DN25/ LTCS ASTM A350 Lf2 Flanges | DN250/ ASTM A350 Gr Lf2 Cl1 Flat Flanges |
| DN80/ ASTM A350 Gr Class 1 Slip On Flanges | SA350 LF2 8" Flanges |
| DN300/ ASTM A350 Gr Lf2 Loose Flanges | DN400/ ASTM A350 LF2 Blind Flange |
| cs astm a350 gr lf2 18" Flanges | DN450/ ASTM A350 Welding Neck Flange |
| Carbon Steel ASTM A350 LF2 1" Flanges | Carbon Steel A350 LF2 1½" Flanges |
| DN50/ ASTM A350 Gr Lf2 Carbon Steel | Carbon Steel A350 LF2 14" Flanges |
| DN200/ ASTM A350 Class 2 Orifice Flanges | LTCS ASTM A350 15" Flanges |
| Carbon Steel LF2 6" Flanges | DN350/ ASTM A350 Flanges |
Test Specimens by 10mm x 10mm
Grade |
Test Temperature, ℉ [℃] |
|---|---|
LF1 |
-20 [-29] |
LF2 Class 1 |
-50 [-46] |
LF2 Class 2 |
-0 [-18] |
LF3, Classes 1 and 2 |
-150 [-101] |
LF5, Classes 1 and 2 |
-75 [-59] |
LF6, Classes 1 and 2 |
-60 [-51] |
LF6 Class 3 |
0 [-18] |
LF9 |
-100 [-73] |
LF787 Class 2 |
-75 [-59] |
LF787 Class 3 |
-100 [-73] |
Grade |
Minimum Impact Value for Average of 3 specimens, ft-lbf [J] |
Minimum Impact Value for One Specimen, ft-lbf [J] |
|---|---|---|
LF1 and LF9 |
13 [18] |
10 [14] |
LF2 Class 1 |
15 [20] |
12 [16] |
LF3 Class 1 |
15 [20] |
12 [16] |
LF5 Class 1 and 2 |
15 [20] |
12 [16] |
LF787 Classes 2 and 3 |
15 [20] |
12 [16] |
LF6 Class 1 |
15 [20] |
12 [16] |
LF2 Class 2 |
20 [27] |
15 [20] |
LF3 Class 2 |
20 [27] |
15 [20] |
LF6 Classes 2 and 3 |
20 [27] |
15 [20] |
Before choosing your supplier check our deliveries of last 2 years
| Philippines, Belgium, Indonesia, Dammam -KSA | ASTM A350 Gr. Lf2 Cl. 1 Flange 18 in Cl600 |
| Europe, Thailand, France, Qatar | ASTM A350 Lf2 Welding Neck Flange Cdfl227 |
| Thailand, Malaysia, Germany, Czechia | Customized Large Diameter ASTM A350 Lf2 Steel Plate Flange |
| Bangladesh, Finland, USA, Malaysia | PE Coating ASTM A350 Lf2 Flat Face Blind Flange |
| Kuwait, Brazil, Saudi Arabia (KSA), South Africa | ASTM A350 Lf2 Cl1 150# RF Alloy Steel Flanges |
| Bahrain, Singapore, South Africa | ASTM A350 Lf5/Lf6 /Lf1/Lf2/Lf3 Sorf Alloy Flange Wnrf |
| UK, Nigeria, Australia, Philippines | ASTM A350 Lf5/Lf6 /Lf1/Lf2/Lf3 Flange |
| Hong Kong, UAE, Malaysia, Oman | Low Temperature ASTM A350 Lf2 Carbon Steel Flange |
| Iran, Singapore, Italy, Chile | 1/2" 150# ASTM a-350 Gr Lf-2 Spectacle Blind Flange |
| Norway, Malaysia, Turkey, United Arab Emirates (UAE) | A350 Lf1/ Lf2 CS Steel RF Black Forged Blind Flange |
| Russia, Dubai, Malaysia, Netherlands | Carbon Steel A350 Lf2 Slip on Ring Flange |
| Mexico, UK, Spain, Egypt | 2" 150# RF Welding Neck ASTM a-350 Gr Lf 2 Flange |
| Malaysia, UAE, Europe, United Kingdom -UK | En 1092-1 S235jr ASTM A105n Flange |
| Poland, Ellington -United States, Canada, UK | ASTM A350 Gr. Lf2 Cl. 1, Class: 300, Face Type: Raised Face, 4"Xsch-40, Welding Neck Flange |
| Canada, Singapore, Malaysia, Philippines | ASME B16.5, ASTM A53 A350 Gr. Lf2 Cl1, Class 300, Face Type: Raised Face, 2' Sch80, Welding Neck Flange, |
| Romania, Malaysia, Japan, Europe | Large Diameter So Flange ASTM A350 Lf2 Cl1/Cl2 for Wind Power Generation |
| China, Colombia, Sweden | ASTM A350 Lf2 Wn RF Flange |