
Highlights of ASTM A350 LF2 Flanges
| Sizes : | 1/2″ to 48″ |
| Standards : | ASTM A350 | ASME SA350 |
| Pressure Class : | 150-2500 Class |
| Density : | 7.85 g/cm3 |
| Connection : | Welding |
| Manufacturing : | Forging |
| Melting Point : | 1425°C |
| SCH : | Sch 5 to XXS |
| Face Types : | RTJ, FF, RF |
| Form : | SORF, WNRF, BLRF |
| Thermal Conductivity : | 21.6 W/mK |
| Origin of Raw Material: | European, Janpanese, UK, Indian, Korean, German |
| MTC | EN 10204/3.1B |
| RFQ: | support@pipingmaterial.ae |
SA 350 LF2 Blind Flange and ASTM A350 LF2 Cl1 Forged Flange suppliers in UAE
ASTM A350 LF2 Flanges Specification


Size In Ready Stock: 1/2″ to 48″ | 15NB to 1200NB

Maximum Size: Large Diameter NPS 26 to NPS 60

Manufacturing Standards: ASTM A350, ASME SA350

Thread Types: BSPT, FNPT, MNPT, NPT, BSPP

Surface Finish: Mirror & Smooth Finish, Stock Finish

Corrosion Resistance: Seawater, Phosphoric, Sulfuric and Nitric Acid

Application: Gas Processing, Refineries, Food Processing

Testing: Hardness Testing, PIM & Pressure Testing
Packaging: Wooden Case, Plastic Bag & Carton Box
Documentation: Third Party Inspection, MTC EN 10204/3.1B
Supporting Material: Ring Joint, Bolts & Nuts, Gaskets
Value Added Services: Threading, Polishing, Casting, Cutting
Get Quote Directly From ASTM A350 LF2 Flanges Suppliers in UAE
100% Tested SA 350 LF2 Blind Flange with MTC EN 10204 3.1/3.2
| USA – ASME /ASTM specification | LF2 flange manufacturing size range | Applicable temperature |
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For larger sizes please contact above ASTM A350 LF2 flanges manufacturers & suppliers in UAE |
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| Types of ASTM A350 Gr LF2 blind flanges | Types of A350 Gr LF2 cl 1 weld neck flange | Types of A350 LF2 cl 1 slip on flanges |
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| Installations & applications | German standards | Thread types of companion/ screwed or SA 350 LF2 CL1 threaded flanges |
Above ASTM A350 LF2 Flanges suppliers have ex-stock and already supplied to many countries such |
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| Meet the requirements | Value added services | Manufacturing standards and origin country |
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Above listed ASTM A350 LF2 flanges suppliers & manufacturers offer these services:
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| ASME specification | Testing requirements | Other special SA350 LF2 CL1 flanges |
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Buy full range of A350 Gr LF2 cl1 flanges from stock in Saudi Arabia & UAE, for custom design |
| American standards | Quality assurance | Marking |
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Material Inspection Facility in Following Locations
| City | Region | Country |
|---|---|---|
| Dubai | Middle East | United Arab Emirates |
| Abu Dhabi | Middle East | United Arab Emirates |
| Dammam | Middle East | Saudi Arabia |
| Riyadh | Middle East | Saudi Arabia |
| Doha | Middle East | Qatar |
| Abuja | Africa | Nigeria |
| Kuwait City | Middle East | Kuwait |
| Jeddah | Middle East | Saudi Arabia |
| Cairo | MENA | Egypt |
| Casablanca | MENA | Morocco |
| Johannesburg | Africa | South Africa |
| Cape Town | Africa | South Africa |
| Lagos | Africa | Nigeria |
Ex Stock of ASTM A350 LF2 Material
- Certification : ISO 9001
- Application : Pipe Lines Connect
- Pressure : PN10 PN16 PN25
- Thread : BSPT, NPT BSPP, METRIC
- Size : 1/2″-60″
- Application : Construction, Mining
- Surface Treatment : Painting
- Service : ODM OEM Customised
- Technique : CNC Machined
- Finish : Machined Surface, Polish
- Size : 28 Inch
- Sruface : Fine Machined
- End : Bevel End ANSI B16.25
- Wall Thickness : SCH 5S-SCH XXS
- Bolt Hole Diameter : 14 mm
- Usage : Oil Gas Water Industrial
LTCS Flange and A350 LF2 Cl1 Material as per ASME B16.5, DIN, AWWA, ANSI B16.47, ISO etc
ASTM A350 Gr LF2 Socket Weld Flange Weight Chart
View ASTM A350 LF2 Flanges Distributer in Fujairah, Ras Al Khaimah or Umm Al Quwain, Gives Accurate Weight Chart for Flanges.
| Nominal Size | SWRF (Socket Weld) | WRNR (Weld Neck) | SORF (Slip On) | BLRF (Blind) | NPT (Threaded) | Loose (Lap Joint) |
|---|---|---|---|---|---|---|
| 24 | 220 | 268 | 220 | 430 | 220 | 275 |
| 22 | 185 | 225 | 185 | 355 | 185 | 245 |
| 20 | 165 | 197 | 165 | 285 | 165 | 195 |
| 18 | 130 | 165 | 130 | 220 | 130 | 160 |
| 16 | 98 | 140 | 106 | 180 | 98 | 140 |
| 14 | 90 | 114 | 90 | 140 | 90 | 105 |
| 12 | 64 | 88 | 64 | 123 | 64 | 64 |
| 10 | 43 | 54 | 43 | 70 | 43 | 43 |
| 8 | 30 | 42 | 30 | 47 | 30 | 30 |
| 6 | 19 | 26 | 19 | 27 | 19 | 19 |
| 5 | 15 | 21 | 15 | 20 | 15 | 15 |
| 4 | 13 | 16.5 | 13 | 17 | 13 | 13 |
| 3½ | 11 | 12 | 11 | 13 | 12 | 11 |
| 3 | 9 | 11.5 | 9 | 9 | 9 | 9 |
| ¾ | 2 | 2 | 2 | 2 | 2 | 2 |
| 2½ | 8 | 10 | 8 | 7 | 8 | 8 |
| 2 | 5 | 6 | 5 | 5 | 5 | 5 |
| 1½ | 3 | 4 | 3 | 4 | 3 | 3 |
| 1 | 2 | 3 | 2 | 2 | 2 | 2 |
| ½ | 2 | 2 | 1 | 2 | 1 | 1 |
Explore Nearby Locations for the Quickest Delivery Options
| Muscat | Riyadh | Dubai | Ras Al Khaimah |
|---|---|---|---|
| Sharjah | Fujairah | Umm Al Quwain | Doha |
| Saudi Arabia | Al Jubail | Abu Dhabi | Ajman |
ASTM A350 LF2 CL1 Forged Flange Pressure Rating

| Temperature. °F | Psi working pressures by Classes | |||
|---|---|---|---|---|
| 75# | 150# | 300# | 400# | |
| -20~100 | 140 | 285 | 740 | 985 |
| 200 | 130 | 260 | 680 | 905 |
| 300 | 115 | 230 | 655 | 870 |
| 400 | 100 | 200 | 635 | 845 |
| 500 | 85 | 170 | 605 | 805 |
| 600 | 70 | 140 | 570 | 755 |
| 650 | 60 | 125 | 550 | 730 |
| 700 | – | 110 | 530 | 710 |
| 750 | – | 95 | 505 | 675 |
| 800 | – | 80 | 410 | 550 |
| 850 | – | 65 | 320 | 425 |
| 900 | – | 50 | 230 | 305 |
| 950 | – | 35 | 135 | 185 |
| 1000 | – | 20 | 85 | 115 |
| Temperature. °F | Psi working pressures by Classes | |||
|---|---|---|---|---|
| 600# | 900# | 1500# | 2500# | |
| -20~100 | 1480 | 2220 | 3705 | 6170 |
| 200 | 1360 | 2035 | 3395 | 5655 |
| 300 | 1310 | 1965 | 3270 | 5450 |
| 400 | 1265 | 1900 | 3170 | 5280 |
| 500 | 1205 | 1810 | 3015 | 5025 |
| 600 | 1135 | 1705 | 2840 | 4730 |
| 650 | 1100 | 1650 | 2745 | 4575 |
| 700 | 1060 | 1590 | 2655 | 4425 |
| 750 | 1015 | 1520 | 2535 | 4230 |
| 800 | 825 | 1235 | 2055 | 3430 |
| 850 | 640 | 955 | 1595 | 2655 |
| 900 | 460 | 690 | 1150 | 1915 |
| 950 | 275 | 410 | 685 | 1145 |
| 1000 | 170 | 255 | 430 | 715 |
ASTM A350 LF2 Lap Joint Flange Torque Chart
Check ASTM A350 LF2 Flanges Suppliers in UAE, Gives Excellent Torque Chart for Flanges.
| Nominal Sizes (Inches) | Bolt Lubricant: Molycote 1000 (μ = 0.13) | Bolt Lubricant: Copperslip (μ = 0.1) | Torque (Ibf.ft, Nm) | Bolting No. x Dia. in | Torque (Ibf.ft, Nm) | A/F in |
|---|---|---|---|---|---|---|
| 36 (900) | 48 (1220) | 800 (1085) | 600 (855) | 4 * 1/2 | 955 (1300) | 20 * 1 – 1/8 |
| 32 (800) | 3/4 | 800 (1085) | 1700 | – | 1070 (1450) | – |
| 30 (750) | 630 (855) | 360 (490) | 800 (1085) | 42 (1070) | 455 (615) | 630 (855) |
| 20 (500) | 415 (565) | 415 (565) | 520 (705) | 24 (600) | 520 (705) | 575 (780) |
| 16 (400) | 240 (325) | 240 (325) | 300 (405) | 18 (450) | 300 (405) | 415 (565) |
| 12 (300) | 180 (245) | 180 (245) | 230 (310) | 14 (350) | 230 (310) | 295 (400) |
| 8 (200) | 120 (165) | 120 (165) | 150 (205) | 10 (250) | 150 (205) | 175 (240) |
| 4 (100) | 75 (100) | 75 (100) | 95 (130) | 6 (150) | 95 (130) | 120 (165) |
| 2 (50) | 75 (100) | 75 (100) | 95 (130) | 3 (80) | 95 (130) | 75 (100) |
| 1 (25) | 35 (50) | 7/8 | 50 (70) | 1 – 1/2 (40) | 30 (40) | 7/8 |
| 1/2 (15) | 25 (35) | 7/8 | 30 (40) | 3/4 (20) | 20 (30) | 7/8 |
Call Now for the Clients List Based in Below Locations
| Middle East countries | Qatar, Lebanon, Bahrain, Saudi, Kuwait, UAE, Jordan, Iraq, Syria, Iran, Yemen |
|---|---|
| Africa | Nigeria, South Africa, Kenya, Morocco, Egypt, Tunisia, Algeria |
| MENA | Morocco, Libya, Algeria, Tunisia, Egypt, Israel, Palestine |
See Where You Can Find Material Ex Stock
| Country | Cities |
|---|---|
| Netherlands | The Hague |
| Belgium | Meeuwen-Gruitrode |
| Netherlands | Amsterdam |
| Belgium | Antwerp |
| Netherlands | Haarlem |
| Belgium | Brussels |
| Belgium | Seraing |
| Belgium | Ghent |
| Belgium | Leuven |
| Netherlands | Eindhoven |
| Belgium | Westerlo |
| Netherlands | Rotterdam |
Wide Range of LF2 Carbon Steel Slip On Flange
| Pipe Size – Pipe Flanges | Maximum Pressure | Flange Connection Type |
|---|---|---|
| 4″ | 720 psi | Slip On |
| 275 psi | Socket Weld | |
| 150 psi | FNPT | |
| 3″ | 720 psi | Slip On |
| 275 psi | Socket Weld | |
| 3/4″ | 275 psi | Socket Weld |
| 150 psi | FNPT | |
| 2-1/2″ | 720 psi | Slip On |
| 275 psi | Socket Weld | |
| 2″ | 720 psi | Slip On |
| 275 psi | Socket Weld | |
| 150 psi | FNPT | |
| 1-1/4″ | 720 psi | FNPT |
| 275 psi | Socket Weld | |
| 1-1/2″ | 720 psi | Slip On |
| 275 psi | Socket Weld | |
| 1″ | 720 psi | Slip On |
| 1/2″ | 720 psi | Slip On |
| 275 psi | Socket Weld | |
| 150 psi | FNPT | |
| 150 psi | Welded |
Referred ASTM A350 LF2 Flanges Standards

Piping Material introduces trusted names of distributors and wholesalers of ASTM A350 LF2 Lap Joint Flange and SA 350 Gr LF2 Slip On Flange in Middle East, check MTC & Test reports
Testing Methods of SA 350 LF2 Weld Neck Flange
- Micro Test
- Radiography Test
- Hardness Test
- Pitting Resistance Test
- DYE Penetrant Test (DP Test)
Available Types of Low Temperature Carbon Steel Flanges

ASME SA350 LF2 CL1 Threaded Flange

A350 LF2 CS Orifice Flange

Grade Lf2 CL 1 Spectacle Blind Flange

Low Temperature Carbon Weld Neck Flange

LTCS Slip On Flange

ASTM A350 LF2 Blind Flange

A350 LF2 Class 1 RTJ Flanges

SA350 LF2 CL 1 Raised Face Flanges

Lf2 Class 1 Reducing Flanges

A350 LF2 LTCS Socket Weld Flange

A350 LF2 Carbon Steel Lap Joint Flange

LTCS Plate Flange

ASTM A350 Gr Lf2 Class 1 Square Flanges

A350 Grade LF2 Flat Flanges

SA350 LF2 Anchor Flanges

ASTM A350 LF2 Class 1 Forged Flange

LF2 Steel WNRF Flange

ASTM A350 LF2 Cl1 Screwed Flange

A350 LF2 Class 1 SORF Flange

A350 Gr LF2 BLRF Flange

ASME SA 350 LF2 Class 1 Industrial Flange
SA 350 Gr LF2 Temperature Range
View ASTM A350 LF2 Flanges Suppliers and Stockist in Dubai or Ajman, Provides Accurate Temperature Limits for Flanges.
| Temperature. °C | Bar working pressures by Classes | |||
|---|---|---|---|---|
| 75# | 150# | 300# | 400# | |
| −29~38 | 9.8 | 19.6 | 51.1 | 68.1 |
| 50 | 9.6 | 19.2 | 50.1 | 66.8 |
| 100 | 8.8 | 17.7 | 46.6 | 62.1 |
| 150 | 7.9 | 15.8 | 45.1 | 60.1 |
| 200 | 6.9 | 13.8 | 43.8 | 58.4 |
| 250 | 6.0 | 12.1 | 41.9 | 55.9 |
| 300 | 5.1 | 10.2 | 39.8 | 53.1 |
| 325 | 4.6 | 9.3 | 38.7 | 51.6 |
| 350 | 3.1 | 8.4 | 37.6 | 50.1 |
| 375 | – | 7.4 | 36.4 | 48.5 |
| 400 | – | 6.5 | 34.7 | 46.3 |
| 425 | – | 5.5 | 28.8 | 38.4 |
| 450 | – | 4.6 | 23.0 | 30.7 |
| 475 | – | 3.7 | 17.4 | 23.2 |
| 500 | – | 2.8 | 11.8 | 15.7 |
| 538 | – | 1.4 | 5.9 | 7.9 |
| Temperature. °C | Bar working pressures by Classes | |||
|---|---|---|---|---|
| 600# | 900# | 1500# | 2500# | |
| -29~38 | 102.1 | 153.2 | 255.3 | 425.5 |
| 50 | 100.2 | 150.4 | 250.6 | 417.7 |
| 100 | 93.2 | 139.8 | 233.0 | 388.3 |
| 150 | 90.2 | 135.2 | 225.4 | 375.6 |
| 200 | 87.6 | 131.4 | 219.0 | 365.0 |
| 250 | 83.9 | 125.8 | 209.7 | 349.5 |
| 300 | 79.6 | 119.5 | 199.1 | 331.8 |
| 325 | 77.4 | 116.1 | 193.6 | 322.6 |
| 350 | 75.1 | 112.7 | 187.8 | 313.0 |
| 375 | 72.7 | 109.1 | 181.8 | 303.1 |
| 400 | 69.4 | 104.2 | 173.6 | 289.3 |
| 425 | 57.5 | 86.3 | 143.8 | 239.7 |
| 450 | 46.0 | 69.0 | 115.0 | 191.7 |
| 475 | 34.9 | 52.3 | 87.2 | 145.3 |
| 500 | 23.5 | 35.3 | 58.8 | 97.9 |
| 538 | 11.8 | 17.7 | 29.5 | 49.2 |
ASTM A350 Gr LF2 Socket Weld Flange and SA350 LF2 Cl1 Reducing Flange with hydrotest, check A350 Flange price per kg in Dubai
ASTM A350 LF2 Flanges Coating Types
Buying Advantages of Low Temp Carbon Steel Flanges
Comparison A350 LF2 Flanges Price Between India and China
| Description | Price In India (INR) Per KG | Price In China (Renminbi) KG | Price In US (Dollar) KG |
|---|---|---|---|
| SIZE: 1/2 INCH, 150#, SOCKET WELD | ₹3453.54 | ¥302.27 | US $42.50 |
| SIZE: 3 INCH, 300#, SCH160, WELD NECK | ₹4986.55 | ¥436.44 | US $61.37 |
| SIZE: 2 INCH, 150#, RF, SCH 40, BLIND | ₹2134.09 | ¥186.78 | US $26.26 |
| SIZE: 4 INCH, 900#, SCH STD, WELD NECK | ₹20205.08 | ¥1768.44 | US $248.66 |
| SIZE: 3/4 INCH, 300#, SCH 160, SOCKET WELD | ₹3113.76 | ¥272.53 | US $38.32 |
Common LTCS Flanges Face Types
- Flat Face (FF)
- Ring Joint Face (RTJ)
- Raised Face (RF)
- Male & Female (M&F)
- Tongue and Groove (T&G)
Check ASTM A350 LF2 Class 1 Flange, SA 350 LF2 Cl1 Weld Neck Flange and A350 Gr LF2 Material specification, chemical composition and equivalent
SA350 LF2 CL1 Pipe Flanges Chemical Composition
Find ASTM A350 LF2 Flanges Suppliers in UAE, Selections the Best Flanges With Exceptional Compositions.
| Element | Weight % |
|---|---|
| Cu | ≤ 0.40 |
| P | ≤ 0.035 |
| S | ≤ 0.040 |
| Nb | ≤ 0.02 |
| V | ≤ 0.08 |
| Cr | ≤ 0.30 |
| Mo | ≤ 0.12 |
| C | ≤ 0.30 |
| Mn | 0.60~1.35 |
| Si | 0.15~0.30 |
| Ni | ≤ 0.40 |
| N | – |

A350 LF2 Pipe Flange Mechanical Properties
Get the ASTM A350 LF2 Flanges Suppliers in UAE, Provides Great Mechanical Properties.
| Item | Value |
|---|---|
| ELr, min. % |
22 |
| ELs, min. % |
30 |
| Yield strength, ksi [MPa], min. |
36 [250] |
| Reduction of Area, min. % |
30 |
| Hardness, max. HBW |
197 |
| ELc, min. % |
48t + 15 |
| Tensile Strength, ksi [MPa] |
70-95 [485–655] |

SA 350 LF2 CL1 Weld Neck Flange Equivalent Grades
| Material Group | Application | Common Name | DIN | UNS | Forging Spec. | Casting Spec. Equivalent | DIN W. No | Material Type |
|---|---|---|---|---|---|---|---|---|
| Low Temp Carbon Steel Flange | General non-corrosive service from -46ºC (-50ºF) to 340ºC (650ºF), LF2 -46ºC ~ 425ºC |
LTCS | TSTE 355 DIN 18103 | K03011 | A350-LF2 | A352-LCB A352-LCC | 1.0566 | C-Mn-Fe |

ASTM A350 LF2 Flanges HSN Code
| Grade | HSN Code |
|---|---|
| LF2 Flanges | 7307910000 |
ASME SA350 LF2 CL1 Pipe Flanges Forging Process and Heat Treatment

ASTM A350 LF2 Reducing Flange Heat Treatment
| Methods | Temperature in (°C) |
|---|---|
| Tempering | 590 °C |
| Normalizing | 880-930 °C |
| Hot-forming | 1150-850 °C |
Applications For A350 LF2 Pipe Flange
Find ASTM A350 LF2 Flanges Suppliers and Stockist in Abu Dhabi or Sharjah, Offers a Various Industrial Applications.
ASME SA350 LF2 CL1 Threaded Flange Thermal Properties
| Properties | Imperial | Metric |
|---|---|---|
| Thermal conductivity | 150 BTU in/hr.ft².°F | 21.6 W/mK |
| Thermal expansion co-efficient (@0-100°C/32-212°F) | 5.78 µin/in°F | 10.4 µm/m°C |
How to Prevent A350 LF2 Flanges From Rust?
- Anti-rust Painting
- Oil Varnishing
- Electric Zinc-coated
What is the Selection Checklist for Purchasers of ASTM A350 LF2 Flanges?

What Are the Benefits of Using SA 350 LF2 Blind Flange?
- Versatility
- Durability
- Compatibility
A350 LF2 LTCS Socket Weld Flange Service Temperature
| Grade | Max Service Temperature |
|---|---|
| LF2 Flanges | 500°C |
Charpy V Notch Test for LTCS Slip On Flange
| Gr. | Min Impact Value for One Specimen, ft-lbf | Min Impact Value ft-lbf |
|---|---|---|
| LF2 Class 2 | 15 | 20 |
| LF2 Class 1 | 12 | 15 |
What is the Fabrication and Welding Notes of ASTM A350 Lf2 Class 1 Flange?
- Thermal Cycles
- Machinability
- Weldability
- Coatings & Corrosion Protection
Material Inspection Facility in Following Locations
| Country | Country Name | City Name | Delivery Time |
|---|---|---|---|
| Netherlands | The Hague | 5 Days | |
| Saudi Arabia | Jeddah | 7 days | |
| Belgium | Ghent | 40 days | |
| Kuwait | Kuwait City | 10 days | |
| Morocco | Casablanca | 10 days | |
| Egypt | Cairo | 18 days | |
| South Africa | Cape Town | 25-30 days | |
| Nigeria | Abuja | 30 days | |
| Qatar | Doha | 7 days |


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