What Is ASTM A350 Grade LF3 Flanges?

These ASTM A350 LF3 grade flanges also showcase higher ductility compared to processed steel. A350 LF3 Cl1 Material is designed with superior mechanical properties. They possess a tensile strength of 485 to 655mpa with a minimum yield strength of 250mpa and can be easily elongated by 30% in the system. The ASTM A350 Pipe Flange is a device that is employed to join piping componentsefficiently.

ASTM A350 Grade LF3 Flanges

Table of Content

SA 350 LF3 Class 1 Blind Flanges Material Specification

ASTM A350 Grade LF3 Flanges Specification

Sizes :

Sizes :

  • NPS: ½" to 24"
  • DN15 To DN1500
  • PN2.5 To PN400
  • Contact ASTM A350 Grade LF3 Flanges Manufacturer in India for above 48 Inch
Pressure Class :

Pressure Class :

  • Class 150 & 300
  • Class 600 & 900
  • Class 1500 & 2500
ASME Standard :

ASME Standard :

Maximum Size :

Maximum Size :

  • 26" To 60" As Per ASME B16.47
Manufacturing Process :

Manufacturing Process :

  • Cast
  • Plate
  • Forged
Bolts Hole Number :

Bolts Hole Number :

  • 4 To 48
Finish Types :

Finish Types :

  • Concentric Serrated
  • Mirror Finish
  • Stock & Smooth
  • Cold Water Finish
  • Spiral Serrated
Faces Types of LF3 Flange :

Faces Types of LF3 Flange :

  • FF Face
  • Male & Female Face
  • Tongue & Groove Face
  • RTJ Face
  • RF Face
Threads :

Threads :

  • BSPT Threads
  • MPT & MNPT Threads
  • BSP Threads
  • FPT Threads
  • NPT Threads
Wall Thickness :

Wall Thickness :

  • Schedule 10/ 20/ 40
  • Schedule 60/ 80/ 100
  • Schedule 120/ 140/ 180
Applications :

Applications :

  • Petrochemicals
  • Power Generation
  • Nuclear Energy
  • Oil & gas plants
Testing :

Testing :

  • Hardness test
  • Tensile test
  • Material inspection
  • Impact test
  • PMI test
Melting Point

Melting Point

  • 1480°C
Connection :

Connection :

  • Threaded
  • Welding
Marking :

Marking :

  • Size & Schedule
  • Standard & Heat No.
  • Manufacturers Name
  • Grade & Material
Life :

Life :

  • ASTM A350 LF3 = 10 Years
Germany Standards :

Germany Standards :

  • DIN 2561
  • DIN 2527
  • DIN 2633
  • DIN 2501
  • DIN 2632
  • DIN 2576
European Standards :

European Standards :

  • EN 1092-1 TYPE 05
  • EN 1092-1 TYPE 11
  • EN 1092-1 TYPE 13
  • EN 1092-2
  • EN 1092-1
  • EN 1092-1 TYPE 01
  • EN 1092-1 TYPE 02
Japanese Standard :

Japanese Standard :

  • JIS B2220
AWWA Standard :

AWWA Standard :

  • AWWA c207
BS Standard :

BS Standard :

  • BS4504
Value Added Services :

Value Added Services :

  • Polishing
  • Beveling end
  • Threading
  • Minor Fabrication
  • Casting
Logistics :

Logistics :

  • By Sea
  • By Air
  • Qatar = 7 days
  • USA = 40-60 days
  • Uk = 30 day
  • France = 30 day
  • Italy = 30 day
  • UAE = 5 day
  • Saudi Arabia = 7 day
  • South Africa = 25 - 30 days
Packaging :

Packaging :

  • Carton Box
  • Wooden Cases
  • Wooden Pallet
Documentation :

Documentation :

  • Fumigation certificates
  • Raw material test reports
  • Material traceability records
Applicable Fluids :

Applicable Fluids :

  • Steam
  • Water & Air
  • Oil and Gas
Coating :

Coating :

  • FBE coating
  • PTFE coating
  • PE coating
  • Back painting
  • Anti rust
  • Zinc coatings

ASTM A350 LF3 Weld Neck Flanges Price List

  • Types = Weld Neck Flange

  • Grade & Class = A350 LF3 Class 1

  • Class = 150 & SCH 40

  • Standard = ASME B16.5

Size Price in US (Dollar) Per Unit Price In Malaysian Ringgit (Malaysia) Price In Philippine Peso (Philippines) Price In South Korean won (South Korea)
DN15 US $4.49 MYR 20.07 PHP 260.52 KRW 6581.46
DN20 US $5.25 MYR 23.47 PHP 304.62 KRW 7695.48
DN25 US $6.34 MYR 28.35 PHP 367.86 KRW 9293.20
DN32 US $10.39 MYR 46.46 PHP 602.85 KRW 15229.71
DN40 US $13.49 MYR 60.32 PHP 782.72 KRW 19773.71
DN50 US $15.15 MYR 67.75 PHP 879.03 KRW 22206.95
DN65 US $17.24 MYR 77.09 PHP 1000.30 KRW 25270.48
DN80 US $20.99 MYR 93.86 PHP 1217.88 KRW 30767.25
DN100 US $24.46 MYR 109.38 PHP 1419.22 KRW 35853.59
DN125 US $31.56 MYR 141.13 PHP 1831.17 KRW 46260.80
DN150 US $37.56 MYR 167.97 PHP 2179.31 KRW 55055.63
DN200 US $45.13 MYR 201.83 PHP 2618.53 KRW 66151.78
DN250 US $75.20 MYR 336.31 PHP 4363.25 KRW 110228.53
DN300 US $125.03 MYR 559.18 PHP 7254.49 KRW 183269.60
DN350 US $197.67 MYR 884.06 PHP 11469.21 KRW 289745.67
DN400 US $258.67 MYR 1,156.88 PHP 15008.55 KRW 379159.77
DN450 US $297.67 MYR 1,331.30 PHP 17271.41 KRW 436326.17
DN500 US $415.34 MYR 1,857.57 PHP 24098.86 KRW 608807.44
DN600 US $533.14 MYR 2,384.42 PHP 30933.85 KRW 781479.26

Impact Test for A350 LF3 Flanges

  • Charpy V-notch impact test at a standard temperature of -150°F [-101°C]

A350 LF3 Material Tensile Strength in KSI & MPa

  • 1.70–95 KSI

  • 2.485–655 MPa

Most Demanded Types of A350 LF3 Carbon Steel Pipe Flanges in Forging and Casting Process

Types Of ASTM A350 Grade LF3 Flanges

ASTM A350 LF3 Slip On Flange

ASTM A350 LF3 Slip On Flange

A350 LF3 Weld Neck Flange

A350 LF3 Weld Neck Flange

A350 LF3 Class 1 Blind Flange

A350 LF3 Class 1 Blind Flange

Grade LF3 Plate Flange

Grade LF3 Plate Flange

A350 Gr LF3 Spectacle Blind Flanges

A350 Gr LF3 Spectacle Blind Flanges

A350 Carbon Steel Threaded Flange

A350 Carbon Steel Threaded Flange

A350 LF3 Class 1 Socket Weld Flange

A350 LF3 Class 1 Socket Weld Flange

LF3 class 1 Long Weld Neck Flange

LF3 class 1 Long Weld Neck Flange

SA 350 gr LF3 Lap Joint Flange

SA 350 gr LF3 Lap Joint Flange

A350 LF3 Orifice Flanges

A350 LF3 Orifice Flanges

SA350 LF3 Reducing Flange

SA350 LF3 Reducing Flange

ASME A350 LF3 Flat Face Flange

ASME A350 LF3 Flat Face Flange

IBR Certified ASME A350 LF3 Slip On Flanges Manufacturer in India, Check Heat Treatment

ASTM A350 LF3 Forgings Heat Treatment

  • Normalizing

  • Tempering

  • Quenching

  • Precipitation treatment

Find Information About SA 350 LF3 CL1 Forged Flanges Working Pressures in Bar and PSI

A350 LF3 Carbon Steel Pipe Flanges Working Pressures in Bar

Temperature Class 150 Class 300
−29~38°C 19.6 51.1
50°C 19.2 50.1
100°C 17.7 46.6
200°C 13.8 43.8
300°C 10.2 39.8
350°C 8.4 37.6
400°C 6.5 34.7
450°C 4.6 23.0
500°C 2.8 11.8

ASME A350 LF3 Weld Flanges Working Pressures in PSI

Temperature Class 150 Class 300
100°F 285 740
200°F 260 680
300°F 230 655
400°F 200 635
500°F 170 605
600°F 140 570
700°F 110 530
800°F 80 410
900°F 50 230
1000°F 20 85

Applications of SA 350 LF3 CL1 Forged Flanges

Applications of SA 350 LF3 CL1 Forged Flanges
Also check ASTM A350 Gr LF3 Weld Flanges Temperature Range and Chemical Composition

A350 LF3 Temperature Range

Maximum Operating Temperature Minimum Operating Temperature
300°C (572°F) -150°C

Difference Between A350 LF3 vs LF2

Parameter A350 LF3 A350 LF2
Material Type Low carbon steel Low carbon steel
Application Cryogenic Low temperature services
Composition Higher Nickel Content (~3.0%) Lower Nickel Content (~0.5-1.0%)
Yield Strength 250 MPa 250 MPa
Tensile Strength 485-655 MPa 485-655 MPa
Impact Resistance Excellent at cryogenic temperatures Good at low temperatures
Standards ASTM A350 LF3 ASTM A350 LF2
Weldability Excellent Good

A350 LF3 Chemical Composition

Carbon [C] :

Carbon [C] :

  • 0.20% (max)
Manganese [Mn] :

Manganese [Mn] :

  • 0.90% max
Phosphorus [P] :

Phosphorus [P] :

  • ≤ 0.035%
Sulfur [S] :

Sulfur [S] :

  • 0.040% max
Silicon [Si] :

Silicon [Si] :

  • 0.20 To 0.35%
Chromium [Cr] :

Chromium [Cr] :

  • 0.30% max
Molybdenum [Mo] :

Molybdenum [Mo] :

  • 0.12% max
Nickel [Ni] :

Nickel [Ni] :

  • 3.3 To 3.7%
Copper [Cu] :

Copper [Cu] :

  • 0.40%

LF3 Flange Mechanical Properties

Tensile Strength :

  • 70–95 KSI

Yield Strength :

  • 37.5 KSI (min.)

Reduction of Area, :

  • 35% (min)

Material

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