Low temperature service down to -46°C.
Properly normalized heat treatment.
Machined exactly to ASME B16.5 standards so your crew spends less time aligning bolts.
Every single batch passes strict Charpy V-notch testing.
Shipped with full EN 10204 3.1 MTC.
We keep heavy inventory ready stock for shipping to your petrochemical projects globally.
ASTM A350 LF2 Blind Flange for A Project in Canada
ASTM A350 LF2 Weld Neck Flange Specially Made for Norway Client
ASTM A350 LF2 Socket Weld Flange Shipped to Russia
ASTM A350 LF2 Slip On Flange for Denmark Project
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Table of Content
These ASTM A350 LF2 flanges also showcase higher ductility compared to processed steel. A350 LF2 material is designed with superior mechanical properties. They possess a tensile strength of 485 to 655 mpa with a minimum yield strength of 250mpa and can be easily elongated by 30% in the system.
Types = Blind Flange
Material = Carbon Steel
Class & SCH = 150 & SCH 40
Standard = ASME B16.5
| Size | Approx. Weight in KG/Unit | Price in US (Dollar) | Price In Malaysian Ringgit (Malaysia) | Price in UAE (Dirham) | Price in Australian Dollar (Australia) |
|---|---|---|---|---|---|
| DN15 | 0.49 | US $2.97 | MYR 13.36 | AED 10.91 | AUD 4.79 |
| DN20 | 0.66 | US $2.97 | MYR 13.36 | AED 10.91 | AUD 4.79 |
| DN25 | 0.99 | US $4.03 | MYR 18.13 | AED 14.80 | AUD 6.50 |
| DN32 | 1.29 | US $5.95 | MYR 26.78 | AED 21.85 | AUD 9.59 |
| DN40 | 1.70 | US $6.13 | MYR 27.59 | AED 22.52 | AUD 9.88 |
| DN50 | 2.77 | US $9.23 | MYR 41.54 | AED 33.90 | AUD 14.88 |
| DN65 | 4.22 | US $15.13 | MYR 68.10 | AED 55.57 | AUD 24.39 |
| DN80 | 5.23 | US $19.19 | MYR 86.37 | AED 70.49 | AUD 30.94 |
| DN100 | 7.78 | US $22.11 | MYR 99.52 | AED 81.21 | AUD 35.64 |
| DN125 | 9.20 | US $26.97 | MYR 121.39 | AED 99.06 | AUD 43.48 |
| DN150 | 11.88 | US $34.34 | MYR 154.57 | AED 126.13 | AUD 55.36 |
| DN200 | 20.92 | US $47.10 | MYR 212.00 | AED 173.00 | AUD 75.93 |
| DN250 | 30.86 | US $58.12 | MYR 261.60 | AED 213.48 | AUD 93.70 |
| DN300 | 45.89 | US $73.45 | MYR 330.61 | AED 269.78 | AUD 118.41 |
| DN350 | 62.39 | US $86.15 | MYR 387.77 | AED 316.43 | AUD 138.88 |
| DN400 | 80.97 | US $123.89 | MYR 557.65 | AED 455.05 | AUD 199.73 |
| DN450 | 99.54 | US $241.34 | MYR 1,086.31 | AED 886.44 | AUD 389.07 |
| DN500 | 129.55 | US $324.97 | MYR 1,462.75 | AED 1193.62 | AUD 523.89 |
| DN600 | 197.65 | US $496.17 | MYR 2,233.35 | AED 1822.44 | AUD 799.89 |
The low temperature carbon steel flange is a device that is employed to join piping components efficiently. These flanges provide strength and stability to different applications. They are designed to work in high as well as low-temperature setups. LF2 flange possesses superior hardness at low temperatures and are very reliable.
| Face Types with Marking symbol | Diagram |
|---|---|
| Raised Face (RF) | ![]() |
| Male Female Face (M&F) | ![]() |
| Flat Face (FF) | ![]() |
| Tongue Groove Face (T&G) | ![]() |
| Lap Joint Face (LJRF) | ![]() |
| Ring Type Joint (RTJ) | ![]() |
| Minimum Temperature | Maximum Temperature |
|---|---|
| Low as 46°C (-50°F) | 343°C (around +650°F) |
| Grade | Test Temperature |
|---|---|
| ASTM A350 Gr LF2 CL 1 | -46°C (-50°F) |
| SA350 LF2 Class 2 | -0℉ [-18℃] |
70-95 KSI
485–655 MPa
36 KSI
250 MPa
| Normalizing (N) | 1650°F to 1700°F |
|---|---|
| Quenching and Tempering (QT) | 1000°F to 1200°F |
| Impact Testing | -50°F |
Brinell = 197 HB
Carbon [C] :
Manganese [Mn] :
Phosphorus [P] :
Sulfur [S] :
Silicon [Si] :
Chromium [Cr] :
Nickel [Ni] :
Molybdenum [Mo] :
Copper [Cu] :
Copper [Cu] :
Silicon [Si] :
Chromium [Cr] :
Phosphorus [P] :
Sulfur [S] :
Nickel [Ni] :
Molybdenum [Mo] :
Carbon [C] :
Manganese [Mn] :
7.85 g/cm³
7850 kg/m³
| Property | ASTM A105 | ASTM A350 LF2 |
|---|---|---|
| Suitable Pressure | Moderate pressure | High pressure |
| Size | 1/2" to 24" | 1/2" to 48" |
| Heat Treatment | Normalized or annealed | Normalizing or quenching |
| Welding | Excellent weldability | Good weldability |
| Temperature Range | Up to 370°C | -50°F to 650°F |
| Hardness | Brinell = 187 HB (Max.) | Brinell = 200 HB (Max.) |
Elongation :
Reduction Of Area :
Impact Test :
The maximum service temperature for ASTM A350 LF2 forgings is 343°C (650°F)
ASTM A350 LF2 Slip On Flange
A350 LF2 Weld Neck Flange
ASTM A350 LF2 Class 1 Blind Flange
A350 grade LF2 CL 2 Plate Flange
SA350 LF2 Spectacle Blind Flanges
A350 Carbon Steel Threaded Flange
A350 Gr LF2 CL1 Socket Weld Flange
A350 LF2 Class 2 Long Weld Neck Flange
ASME A350 LF2 Lap Joint Flange
LF2 Orifice Flanges
LTCS Reducing Flange
UNS K03011 Flat Face Flange