Engineered for the Cold
Why Source ASTM A350 LF2 Flanges From Us?
Proven toughness when the temperature drops.
❄️

Sub-Zero Tough

Low temperature service down to -46°C.

🔨

Zero Brittleness

Properly normalized heat treatment.

🎯

Precision Fit

Machined exactly to ASME B16.5 standards so your crew spends less time aligning bolts.

🔬

Impact Tested

Every single batch passes strict Charpy V-notch testing.

📋

100% Certified

Shipped with full EN 10204 3.1 MTC.

✈️

Fast Dispatch

We keep heavy inventory ready stock for shipping to your petrochemical projects globally.

ASTM A350 LF2 Flanges Exported to Thailand and Vietnam
ASTM A350 LF2 Flanges
Features of ASTM A350 LF2 Flanges
Environments Low Temperature Services
Tensile Class A350 LF2 Class 1 and Class 2
Material Low Alloy and Carbon Steel
Coating FBE and Epoxy Coating
A350 Lf2 Temperature Range -46°C
Advantages Excellent Impact Resistance
A350 Lf2 Tensile Strength 480 MPa to 655 MPa
ASTM A350 LF2 Class 1 Yield Strength 240 MPa (minimum)
Suitable For Oil and Gas Plants
How can suppliers in France get ASTM A350 LF2 Flanges at true distributor prices?

Skip the major trading houses in Paris and Lyon. To get real wholesale pricing, you need to partner directly with the factory. We set up France suppliers with exclusive B2B distributor rates, giving you the margins needed to dominate your local market.

Worldwide Export Destinations for ASTM A350 LF2 Flanges
Middle East
UAE UAE Saudi Arabia Saudi Arabia Qatar Qatar Bahrain Bahrain Kuwait Kuwait Oman Oman
Europe
Finland Finland Denmark Denmark Ukraine Ukraine Albania Albania Slovakia Slovakia Malta Malta
Asia & Oceania
Thailand Thailand Vietnam Vietnam Cambodia Cambodia Sri Lanka Sri Lanka Australia Australia Japan Japan
Africa
South Africa South Africa Equatorial Guinea Equatorial Guinea The Republic Of Congo Republic Of Congo Gabon Gabon Sudan Sudan
The Americas
Costa Rica Costa Rica Puerto Rico Puerto Rico Trinidad And Tobago Trinidad & Tobago Paraguay Paraguay Uruguay Uruguay Panama Panama
ASTM A350 LF2 Flanges
ASTM A350 LF2 Flanges Specification
Size In Ready Stock
  • PN2.5 To PN400
  • NPS: ½" to 24"
  • DN15 To DN1500
  • Contact ASTM A350 LF2 flanges manufacturer in India for above 48 Inch
Pressure Level
  • 150# & 300#
  • 600# & 900#
  • 1500# & 2500#
American Standard
  • ASME B16.47
  • ASME B16.48
  • ASME B16.36
  • ASME B16.5
Maximum Size
  • 26" To 60" As Per ASME B16.47
Manufacturing Process
  • Forged
  • Cast
  • Plate
Number of Bolts Hole
  • 4 To 48
Types of Finish
  • Spiral Serrated
  • Concentric Serrated
  • Mirror Finish
  • Stock & Smooth
  • Cold Water Finish
Faces
  • RF Face
  • FF Face
  • Male & Female Face
  • Tongue & Groove Face
  • RTJ Face
Available Threads
  • NPT Threads
  • BSPT Threads
  • MPT & MNPT Threads
  • BSP Threads
  • FPT Threads
Available Thickness
  • Schedule 10/ 20/ 40
  • Schedule 60/ 80/ 100
  • Schedule 120/ 140/ 180
Installations
  • Nuclear Energy
  • Oil & gas plants
  • Petrochemicals
  • Power Generation
Testing Requirements
  • PMI test
  • Hardness test
  • Tensile test
  • Material inspection
  • Impact test
Melting Point
  • 1480°C
End Connection
  • Threaded
  • Welding
Marking Formula
  • Grade & Material
  • Size & Schedule
  • Standard & Heat No.
  • Manufacturers Name
Life
  • 10 Years
DIN Standards
  • DIN 2576
  • DIN 2561
  • DIN 2527
  • DIN 2633
  • DIN 2501
  • DIN 2632
EN Standards
  • EN 1092-1 TYPE 13
  • EN 1092-2
  • EN 1092-1
  • EN 1092-1 TYPE 01
  • EN 1092-1 TYPE 02
  • EN 1092-1 TYPE 05
  • EN 1092-1 TYPE 11
Value Added Services
  • Beveling end
  • Threading
  • Minor Fabrication
  • Casting
  • Polishing
Logistics
  • By Sea
  • By Air
  • Qatar = 7 days
  • USA = 40-60 days
  • Uk = 30 day
  • France = 30 day
  • South Africa = 25 - 30 days
  • Belgium = 40 day
  • Italy = 30 day
  • UAE = 5 day
  • Saudi Arabia = 7 day
  • Netherland = 30 day
  • Germany = 21 day
JIS Standard
  • JIS B2220
AWWA Standard
  • AWWA c207
BS Standard
  • BS4504
Packaging
  • Carton Box
  • Wooden Pallet
  • Wooden Cases
Documentation
  • Material traceability records
  • Fumigation certificates
  • Raw material test reports
Applicable Fluids
  • Steam
  • Oil and Gas
  • Water & Air
Available Coating
  • Anti rust
  • Zinc coatings
  • FBE coating
  • PTFE coating
  • PE coating
  • Back painting

Manufacturer of LTCS Blind Flanges for Low Temperature Services

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.


ASME SA350 LF2 Blind Flange Price

  • 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

Before Ordering, View A350 LF2 Class 1 Slip On Flange Available in RTJ, RF and FF Face.

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.


LF2 Flanges Face Types

Face Types with Marking symbol Diagram
Raised Face (RF) Raised Face
Male Female Face (M&F) Male Female Face
Flat Face (FF) Flat Face
Tongue Groove Face (T&G) Tongue Groove Face
Lap Joint Face (LJRF) Lap Joint Face
Ring Type Joint (RTJ) Ring Type Joint

Since 1992, Rishabh Steel Has Supplied A350 Grade LF2 Weld Neck Flanges in Kuwait, Refer Temperature Range and Impact Test


A350 LF2 Operating Temperature

Minimum Temperature Maximum Temperature
Low as 46°C (-50°F) 343°C (around +650°F)

SA 350 LF2 Impact Test

Grade Test Temperature
ASTM A350 Gr LF2 CL 1 -46°C (-50°F)
SA350 LF2 Class 2 -0℉ [-18℃]

ASTM A350 LF2 Tensile Strength

  • 70-95 KSI

  • 485–655 MPa

A350 LF2 Yield Strength

  • 36 KSI

  • 250 MPa

Get ASME SA350 LF2 SWRF Flanges Ready Stock, Which Is A Best Option for Oil and Gas Pipeline, See the Heat Treatment and Suitable Environment

A350 LF2 Heat Treatment

Normalizing (N) 1650°F to 1700°F
Quenching and Tempering (QT) 1000°F to 1200°F
Impact Testing -50°F

Suitable Environment for A350 Grade LF2 Slip On Flanges

Suitable Environment for A350 Grade LF2 Slip On Flanges
Check Low Temperature Carbon Steel Flanges Hardness Requirement and Class Wise Chemical Composition

Hardness for LTCS Flange

  • Brinell = 197 HB

ASTM A350 LF2 Class 1 Chemical Composition

Carbon [C] :

Carbon [C] :

  • ≤ 0.30%
Manganese [Mn] :

Manganese [Mn] :

  • 0.60-1.35%
Phosphorus [P] :

Phosphorus [P] :

  • 0.035%
Sulfur [S] :

Sulfur [S] :

  • 0.040%
Silicon [Si] :

Silicon [Si] :

  • 0.15-0.30%
Chromium [Cr] :

Chromium [Cr] :

  • 0.30%
Nickel [Ni] :

Nickel [Ni] :

  • 0.40% (max)
Molybdenum [Mo] :

Molybdenum [Mo] :

  • 0.12% (max)
Copper [Cu] :

Copper [Cu] :

  • 0.40% (max)

ASTM A350 LF2 Class 2 Chemical Composition

Copper [Cu] :

Copper [Cu] :

  • 0.40% (max)
Silicon [Si] :

Silicon [Si] :

  • 0.15-0.30%
Chromium [Cr] :

Chromium [Cr] :

  • 0.30%
Phosphorus [P] :

Phosphorus [P] :

  • 0.035%
Sulfur [S] :

Sulfur [S] :

  • 0.040%
Nickel [Ni] :

Nickel [Ni] :

  • 0.40% (max)
Molybdenum [Mo] :

Molybdenum [Mo] :

  • 0.12% (max)
Carbon [C] :

Carbon [C] :

  • ≤ 0.30%
Manganese [Mn] :

Manganese [Mn] :

  • 0.60-1.35%

ASTM A350 LF2 Low Temperature Flange Density

  • 7.85 g/cm³

  • 7850 kg/m³

Difference Between A105 and ASTM A350 LF2 Flanges

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.)

ASTM A350 LF2 Flanges Mechanical Properties

Elongation :

  • 30%

Reduction Of Area :

  • 30% (minimum)

Impact Test :

  • -45℃

Max Service Temperature of Low Temp Carbon Steel Flanges

The maximum service temperature for ASTM A350 LF2 forgings is 343°C (650°F)


Types of ASTM A350 LF2 Flanges for Low Temperature Services

 ASTM A350 LF2 Slip On Flange

ASTM A350 LF2 Slip On Flange

A350 LF2 Weld Neck Flange

A350 LF2 Weld Neck Flange

ASTM A350 LF2 Class 1 Blind Flange

ASTM A350 LF2 Class 1 Blind Flange

A350 grade LF2 CL 2 Plate Flange

A350 grade LF2 CL 2 Plate Flange

SA350 LF2 Spectacle Blind Flanges

SA350 LF2 Spectacle Blind Flanges

A350 Carbon Steel Threaded Flange

A350 Carbon Steel Threaded Flange

A350 Gr LF2 CL1 Socket Weld Flange

A350 Gr LF2 CL1 Socket Weld Flange

A350 LF2 Class 2 Long Weld Neck Flange

A350 LF2 Class 2 Long Weld Neck Flange

ASME A350 LF2 Lap Joint Flange

ASME A350 LF2 Lap Joint Flange

LF2 Orifice Flanges

LF2 Orifice Flanges

LTCS Reducing Flange

LTCS Reducing Flange

UNS K03011 Flat Face Flange

UNS K03011 Flat Face Flange


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