Dinesh Industries > ASTM A350 LF2 Flanges

ASTM A350 LF2 Flanges

A350 lf2 flange are intended for low temperature services. These are flanges made up of carbon steel or with low alloy steels. There are A350 Lf2 class 1 and class 2 flange types. Both the types need the notch toughness test to make sure that they are in compliance with the quality that is needed. There are different shapes, sizes, dimensions and grades of the ASTM A350 Lf2 Flanges components and Dinesh Industries is a manufacturer and supplier of all the different types. We are in business for several years and produce all different kinds of flanges in different material grades as well.

SA 350 LF2 blind flange manufacturer in India, Check online price list of A350 LF2 Cl1 pipe flanges

ASTM A350 LF2 Flanges

ASTM A350 LF2 Flanges

ASME Sa 350 Lf2 Blind Flange

ASME Sa 350 Lf2 Blind Flange

ASME B16.5 A350 Lf2 Cl1 Weld Neck Flange

ASME B16.5 A350 Lf2 Cl1 Weld Neck Flange

A350 LF2 Killed Carbon Steel Flanges

A350 LF2 Killed Carbon Steel Flanges

ASTM A350 Gr LF2 Flange

ASTM A350 Gr LF2 Flange

Lf2 Steel Slip on Flanges

Lf2 Steel Slip on Flanges

We are one of the leading ASME SA 350 LF2 slip on flange supplier in Mumbai, Refer A350 LF2 weld neck flanges pressure rating and dimensions

The ASTM A350 lf2 forged flange types are stronger because they are forged from one piece of metal and could be used in applications where strength is required. Buy Directly From Astm A350 Lf2 Class 1 Flange Manufacturers In Mumbai These flanges could also be welded with the piping system with ease. For applications that require toughness and hardenability, the ASME sa 3150 lf2 flanges can be used. There are conditions at which killed carbon products are preferred. For such applications, we supply the A350 Lf2 killed carbon steel flanges to meet the needs. There are different dimensions and scales involved as well. Please don’t hesitate to contact us to know more about or to inquire anything about our products. All the forgings supplied by the Sa 350 Gr Lf2 Cl1 flanges manufacturer are generally ultrasonically tested.

ASTM A350 LF2 Flanges Manufacturer
ASTM A350 LF2 Flanges Manufacturer

Specification Chart of ASTM A350 LF2 Flanges

Size range Dimensional standard for ASTM A350 LF2 flanges SA350 LF2 CL1 flange manufacturing technique
  • 1/2″ to 48″
  • ASME B16.5
  • ASME B16.47
  • ASME B16.36
  • MSS SP-44
  • DIN 2533
  • Casting
  • Forging
ASTM & ASME (American standard) Pressure Class Flanges threads
  • ASTM A105
  • ASME SA105
  • ASTM A105N
  • ASME SA105N
  • Class 150
  • Class 300
  • Class 600
  • Class 900
  • Class 1500
  • Class 2500
  • NPT
  • BSP
  • BSPP
  • BSPT
Types of SA350 LF2 CL1 socket weld flange Types of ASTM A350 LF2 slip on flanges Types of ASME SA350 LF2 blind flange
  • LF2 SWRF flange
  • ASTM A350 LF2 CL1 SWFF flange
  • ASTM A350 GR LF2 CL1 SO flange
  • A350 LF2 CL1 SORF flange
  • A350 GR LF2 CL1 SOFF flange
  • LTCS BLRF flange
  • LF2 CL1 BLFF flange
Types of A350 GR LF2 CL1 weld neck flanges Surface treatment of SA350 LF2 flanges Connection type
  • ASTM A350 GR LF2 WN flange
  • ASME SA 350 WNFF flange
  • A350 LF2 CL1 WNRF flange
  • Raw Black
  • Hot-dip Galvnized
  • Powder-coat
  • Double Coating
  • Customized
  • Raised Face (RF)
  • Flat Face (FF)
  • Ring Type Joint (RTJ)
  • Lap Joint Face (LJ)
  • Large Male Female
  • Small Male Female
Other types of A350 flanges Heat Treatment LTCS Flange material surfaces
  • SA350 LF2 CL1 threaded flange
  • ASTM A350 LF2 pipe flange
  • A350 orifice flange
  • A350 LF2 RTJ flange
  • LTCS spectacle blind flange
  • ASTM A350 gr LF2 lap joint flange
  • Normalizing
  • Annealing
  • Quenching Tempering
  • Stock Finish
  • Spiral Serrated
  • Concentric Serrated
  • Smooth Finish

We are ASTM A350 GR LF2 flanges manufacturer in India, which can be manufactured in above mentioned surface finishes

Schedule Testing of ASME SA350 LF2 flanges JIS / EN1092-1 standard
  • SCH 10
  • SCH 120
  • XH
  • SCH 40
  • SCH 60
  • SCH 80
  • SCH 100
  • XXH
  • SCH 40
  • SCH 60
  • SCH 80
  • SCH 100
  • Chemical composition
  • Mechanical properties
  • Surface roughness
  • Metallographic inspection
  • Inspection of appearance
  • Magnetic Particle Examination
  • 100% Radiography Tested
  • Ultrasonic test

JIS: 5K -30K
EN1092-1: 6Bar / 10Bar / 16Bar / 25Bar / 40Bar / 63Bar / 100Bar

Packing Identification Markings PN pressure classes
  • Plywood cases
  • Pallets
  • Nylon bags
  • Manufacturer logo / name
  • Material
  • Pressure Ratings
  • Standard
  • Temperature
  • Size
  • PN6
  • PN10
  • PN16
  • PN25
  • PN40
  • PN64

ASTM A350 LF2 Flange is usually supplied in the Normalised, Normalised and Tempered or Quench and Tempered condition. Forging Temperature for this A350 LF2 Material should be 900 – 1200 C. We are Leading Manufacturer of A350 Flange

Price List of ASME Sa350 LF2 Flange

A350 LF2 Flange Price Per Piece in India Carbon Steel A350 Lf2 Plate Flange Price in INR Carbon Steel A350 Lf2 Pipe Flnage Price in USD Carbon Steel A350 Lf2 Flange Price in UAE Dirham
ASTM A350 LF2 Blind Flange 70.92 – 70920.25 / Piece US $10-1000 / Piece UAE Dirham 3.67 – 3672.90 / Piece
A350 Threaded Flange 3546.01 – 35460.13 / Piece US $50-500 / Piece UAE Dirham 183.64 – 1836.45 / Piece
Carbon Steel A350 Weld Neck Flange 70.92 – 21276.07 / Piece US $1-300 / Piece UAE Dirham 3.67 – 1101.87 / Piece
A350 Killed Carbon Steel Socket Weld Flange 354.60 – 70920.25 / Piece US $5-1000 / Piece UAE Dirham 18.36 – 3672.90 / Piece
A350 Carbon Steel Flange 70.92 – 63828.22 / Piece US $1-900 / Piece UAE Dirham 3.67 – 3305.61 / Piece

Refer delivery time and price list of A350 LF2 WNRF FLANGE 300# SCH STD

Export to Sizes (inch) Price Estimated delivery time from India
Spain 1/2" US $ 6.583 30
Ukraine 3/4" US $ 7.767 60
Malaysia 1" US $ 9.317 10
France 1-1/4" US $ 13.417 60
Italy 1-1/2" US $ 15.15 30
Germany 2" US $ 17.25 21
France 2-1/2" US $ 18.917 28
Italy 3" US $ 20.833 28
Russia 4" US $ 24.417 20
Norway 5" US $ 32 45
Netherland 6" US $ 38.667 30
Uk 8" US $ 58.333 30
Philippines 10" US $ 93.167 14
Belgium 12" US $ 140.667 40
Denmark 14" US $ 194.167 35
Greece 16" US $ 228.5 45
Indonesia 18" US $ 296.833 9
Nepal 20" US $ 352.167 7
Vietnam 24" US $ 489.833 10

Check surface finish of ASTM A350 LF2 class 1 reducing flanges, We manufacture SA350 grade LF2 flanges in various forms such as RTJ, lap joint, orifice flanges

Various Types of ASTM A350 LF2 Flanges

A350 Gr Lf2 Lap Joint Flange

A350 Gr Lf2 Lap Joint Flange

Sa 350 Lf2 Long weld neck flange

Sa 350 Lf2 Long weld neck flange

A350 Gr Lf2 Cl1 Weld Neck Flanges

A350 Gr Lf2 Cl1 Weld Neck Flanges

ASTM A350 Lf2 Class 1 Expander Flange

ASTM A350 Lf2 Class 1 Expander Flange

A352 Lf2 Socket Weld Flange

A352 Lf2 Socket Weld Flange

ASTM A350 Gr Lf2 Blanks

ASTM A350 Gr Lf2 Blanks

Lf2 Flanges Spacer

Lf2 Flanges Spacer

Sa 350 Material Slip-On Flange

Sa 350 Material Slip-On Flange

Sa350 Lf2 Reducing Flange

Sa350 Lf2 Reducing Flange

Sa 350 Lf2 Cl1 Orifice Flange and Plate

Sa 350 Lf2 Cl1 Orifice Flange and Plate

A350 Lf2 Class 1 Spectacle Blind

A350 Lf2 Class 1 Spectacle Blind

Sa350 Steel Flangeolet / Weldoflange / Nippoflange

Sa350 Steel Flangeolet / Weldoflange / Nippoflange

Sa 350 Lf2 Cl1 Threaded Flange

Sa 350 Lf2 Cl1 Threaded Flange

A350 Lf2 Class 1 Blind Flange

A350 Lf2 Class 1 Blind Flange

Available Connect Face Types of A350 Grade LF2 Flange

A350 Steel BLRF Flanges

A350 Steel BLRF Flanges

A350 Grade Lf2 RTJ Flanges

A350 Grade Lf2 RTJ Flanges

Sa350 Gr Lf2 Flat Face (FF) Flanges

Sa350 Gr Lf2 Flat Face (FF) Flanges

Sa350 Lf2 Cl1 male- female Flange

Sa350 Lf2 Cl1 male- female Flange

Sa350 Lf2 Class 1 Ring Joint (RJT) Flanges

Sa350 Lf2 Class 1 Ring Joint (RJT) Flanges

Sa350 Lf2 Cl1 SWRF Flanges

Sa350 Lf2 Cl1 SWRF Flanges

A350 Lf2 Class 2 LWNRF Flanges

A350 Lf2 Class 2 LWNRF Flanges

Sa 350 Lf2 Class 1 WNRF Flanges

Sa 350 Lf2 Class 1 WNRF Flanges

Asme A350 tongue and groove Flange

Asme A350 tongue and groove Flange

A350 Lf2 Material SORF Flanges

A350 Lf2 Material SORF Flanges

Sa 350 Gr Lf2 Cl1 Raise Face (RF) Flange

Sa 350 Gr Lf2 Cl1 Raise Face (RF) Flange

Different Manufacturing Standards Types of LTCS Flanges

ASME B16.47 Series A Sa 350 Lf2 Class 1 Flanges

ASME B16.47 Series A Sa 350 Lf2 Class 1 Flanges

API 590 Asme Sa350 Pipe Flanges

API 590 Asme Sa350 Pipe Flanges

ASME B16.36 ASTM A350 Lf2 Pipe Flange

ASME B16.36 ASTM A350 Lf2 Pipe Flange

ASME B16.45 A350 Flange Flanges

ASME B16.45 A350 Flange Flanges

ANSI/ASME B16.47 Series B Lf2 Material Pipe Flanges

ANSI/ASME B16.47 Series B Lf2 Material Pipe Flanges

API 605 Sa 350 Material Flange

API 605 Sa 350 Material Flange

ASME B16.5 Lf2 Steel Flange

ASME B16.5 Lf2 Steel Flange

MSS SP-44 A350 Lf2 Cl1 Pipe Flange

MSS SP-44 A350 Lf2 Cl1 Pipe Flange

Types of Pressure Class of A350 LF2 Killed Carbon Steel Flanges

Class 300 A350 Lf2 Class 2 Pipe Flanges

Class 300 A350 Lf2 Class 2 Pipe Flanges

Class 600 ASTM A350 Grade Lf2 Class 1 Flange

Class 600 ASTM A350 Grade Lf2 Class 1 Flange

Class 400 Sa 350 Gr Lf2 Plate Flange

Class 400 Sa 350 Gr Lf2 Plate Flange

Class 2500 ASTM A350 Lf2 Cl1 Flanges

Class 2500 ASTM A350 Lf2 Cl1 Flanges

Class 150 Lf2 Carbon Steel Forged Flanges

Class 150 Lf2 Carbon Steel Forged Flanges

Class 900 Sa 350 Gr Lf2 Flanges

Class 900 Sa 350 Gr Lf2 Flanges

Class 1500 ASTM A350 Pipe Flange

Class 1500 ASTM A350 Pipe Flange

Are you Looking to Buy Sa 350 Lf2 Class 1 Slip on Flange from Manufacturer in India. Contact us to get latest Price List of Lf2 Material

A350 LF2 chemical composition

S% Mn% Si% P% C% Ni% Cr%
.040 max 0.6/1.35 .15/.30 .035 max 0.30 max 0.40 max 0.30 max

ASTM A350 LF2 mechanical properties

Properties Imperial
Hardness, Bhn Max 197
EL (2″ Min) 22%
RA Min 30%
Set of 3 Specimen* 15 (20)
-50ºF Charpy Min Impact
Energy F t/Lb (J):-
YS Min psi (Mpa) 36,000 (250)
TS Min psi (Mpa) 70,000 (485)
For One Specimen 12 (16)
We perform various destructive and non destructive testing on SA 350 gr LF2 plate flange, Exporter of ASTM A350 gr LF2 socket weld flanges in more than 35 countries

Thermal Expansion of A350 LF2 Killed Carbon Steel Flanges

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

We Sell Following ASTM A350 LF2 Flange

Sa350 Lf2 Spectacle Blind Flanges

Sa350 Lf2 Spectacle Blind Flanges

LTCS A350 LF2 Blind Flanges

LTCS A350 LF2 Blind Flanges

LTCS A350 LF2 Blind Flange

LTCS A350 LF2 Blind Flange

SA350 LF2 Flanges

SA350 LF2 Flanges

A350 Gr Lf2 Carbon Steel Weld Neck Flanges

A350 Gr Lf2 Carbon Steel Weld Neck Flanges

ASME B16.5 LTCS Bleed Ring

ASME B16.5 LTCS Bleed Ring

A350 Lf2 Grade Spectacle Blind Flanges

A350 Lf2 Grade Spectacle Blind Flanges

ANSI B16.47 A350 LF2 Welding Neck Flange

ANSI B16.47 A350 LF2 Welding Neck Flange

SA350 Gr Lf2 Paddle Blank Flanges

SA350 Gr Lf2 Paddle Blank Flanges

A350 Lf2 Grade Pipe Flanges

A350 Lf2 Grade Pipe Flanges

A350 LF2 Cl1 Threaded Flanges

A350 LF2 Cl1 Threaded Flanges

A350-Lf2-1 Forged Flanges

A350-Lf2-1 Forged Flanges

ASTM A350 Gr Lf2 Loose Flanges

ASTM A350 Gr Lf2 Loose Flanges

ASTM A350 grade LF2 Forged Flanges

ASTM A350 grade LF2 Forged Flanges

ANSI B16.5 A350 LF2 Flanges

ANSI B16.5 A350 LF2 Flanges

Carbon Steel ASTM A350 LF2 LTCS Socket Weld Flanges

Carbon Steel ASTM A350 LF2 LTCS Socket Weld Flanges

ASTM A350 Gr Lf2 Square Flanges

ASTM A350 Gr Lf2 Square Flanges

ASTM A350 Slip-On Flange, RF, 150LB, ANSI

ASTM A350 Slip-On Flange, RF, 150LB, ANSI

ASTM A350 Forged Blind Flange, PN50, RF

ASTM A350 Forged Blind Flange, PN50, RF

A350 Lf2 Cl.1 Plate Flanges

A350 Lf2 Cl.1 Plate Flanges

CS ASTM A350 Gr LF2 Tongue & Groove Flanges

CS ASTM A350 Gr LF2 Tongue & Groove Flanges

ANSI B16.48 Spade Flange, A350 LF2 CL1, PN50, DN750, Flat Face

ANSI B16.48 Spade Flange, A350 LF2 CL1, PN50, DN750, Flat Face

ASME SA350 Grade.Lf2 Nippo Flanges

ASME SA350 Grade.Lf2 Nippo Flanges

A350 Lf2 Killed Carbon Steel High Hub Flanges

A350 Lf2 Killed Carbon Steel High Hub Flanges

ANSI B16.5 Weld Neck Flange, CS A350, CL150, 4IN, Black Treatment

ANSI B16.5 Weld Neck Flange, CS A350, CL150, 4IN, Black Treatment

Carbon Steel A350 LF2 Low Temperature Reducing Flanges

Carbon Steel A350 LF2 Low Temperature Reducing Flanges

SA350 Gr Lf2 Cl1 Body Flanges

SA350 Gr Lf2 Cl1 Body Flanges

A350 Lf2 Class 1 Material

A350 Lf2 Class 1 Material

ASTM A350 Flat Face Blind Flange

ASTM A350 Flat Face Blind Flange

ASTM A350 gr LF2 Raised Face Flanges

ASTM A350 gr LF2 Raised Face Flanges

A350 Carbon Steel Weld Neck Flange, 2500LB

A350 Carbon Steel Weld Neck Flange, 2500LB

A350 Gr LF2 Class 1 Plate Flanges

A350 Gr LF2 Class 1 Plate Flanges

Flat Plate Flange, A350, A182, PN20, PN50

Flat Plate Flange, A350, A182, PN20, PN50

Low Temperature Carbon Steel Lap Joint Flanges

Low Temperature Carbon Steel Lap Joint Flanges

ASTM A350 LF2 Welding Neck Flange

ASTM A350 LF2 Welding Neck Flange

Sa350 Lf2 Ring Type Joint Flanges

Sa350 Lf2 Ring Type Joint Flanges

Sa350 Lf2 Steel Threaded Flanges

Sa350 Lf2 Steel Threaded Flanges

A350 LF2 Welding Neck Flange

A350 LF2 Welding Neck Flange

ANSI B16.5 LTCS Male and Female Flange

ANSI B16.5 LTCS Male and Female Flange

ASTM A350 LF2 LTCS Slip On Flanges

ASTM A350 LF2 LTCS Slip On Flanges

Application of ASME SA350 LF2 Flange

  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry
  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals

Value Added Services of A350 LF2 Flanges

  • Micro Test
  • Intergranular Corrosion (IGC) Test
  • Macro Test
  • Eddy Current Testing
  • Hardness Test
  • Flaring Test
  • Dye Penetrant Test (DP Test)
  • Flattening Test
  • Radiography Test
  • Ultra Sonic Test (UT)
  • Pitting Resistance Test

Reliable Stockist of A350 LF2 Killed Carbon Steel Flange

A350 LF2 Flange ASTM A350 LF2 Blind Flange
ASTM A350 LF2 Tongue and Groove Flanges LTCS ASTM A350 Gr Lf2 Cl1 Male and Female Flange
ASTM A350 Grade Lf2 Class 1 Reducing Flanges A350 LF2 ASME B16.5 Flanges
ASTM A350 Lf2 Class 1 Flanges Carbon Steel A350 Lf2 BS 10 Flanges
Carbon Steel A350 Lf2 Slip on Flange ASTM A350 Class 1 Threaded Flange
A350 LF2 Reducing Flange A350 Killed Carbon Steel Socket Weld Flange
ASTM A350 Grade Lf2 Class 1 Weld Neck Flanges ASTM A350 LF2 Lap Joint Flanges
ASTM A350 Grade Cl1 Long Weld Neck Flanges A350 LF2 Spectacle Blind Flanges
ASTM A350 Grade Lf2 Class 1 Spades & Ring Spacers A350 Killed Carbon Steel Nipoflange
ASTM A350 LF2 Series a Lap Joint Ring Flange A350 Killed Carbon Steel Class 300 threaded flange
A350 lf2 cl1 PN16 blind flange A350 Gr Lf2 Carbon Steel Forged Socket Weld Pipe Flange
ASTM A350 Class 300 slip on flange ASTM A350 Grade Lf2 Class 1 Slip On Weld Flange
Carbon Steel A350 Lf2 Forged steel slip on flanges Carbon Steel A350 Lf2 Race face slip on flange
ASTM A350 Lf2 Class 1 SWRF Flange A350 Gr Lf2 Carbon Steel Forged blind flange
ASTM A350 groove weld neck flange ASTM A350 Cl1 Socket Weld Hub Flange
CS ASTM A350 Gr Lf2 Class 150 Flange A350 Gr Lf2 Carbon Steel Pipe Flanges
A350 LF2 Flanges A350 lf2 cl1 Class 150 Tongue & Groove Flanges
Carbon Steel A350 flange A350 LF2 EN 1092-1 flat flange
ASTM A350 Class 1 threaded lap joint flange A350 Gr Lf2 Carbon Steel Slip On Integral flange
ASTM A350 LF2 5D Weldoflange ASTM A350 Class 1 Flange Outlet
A350 cl1 Forged Flanges LTCS ASTM A350 Gr Lf2 Cl1 Plate Flange
A350 Ring Type Joint Flanges A350 Lf2 Killed Carbon Steel Raised Face Flanges
ASTM A350 Flanges A350 Lf2 Killed Carbon Steel EN 1092-1 Flanges
ASTM A350 SORF Flange A350 Carbon Steel BLRF Flange
ASTM A350 Lf2 Class 1 WNRF Flange Carbon Steel A350 RTJ Flange
ASTM A350 Forged integral puddle flange Carbon Steel A350 Lf2 table e long weld neck
A350 lf2 cl1 Class 150 LBS Flange LTCS ASTM A350 Forged Flanges
ASTM A350 LF2 RTJ Flanges ASTM A350 Grade Lf2 Class 1 PN10 Plate Flanges
A350 cl1 Tongue & Groove Flanges A350 Reducing Flanges
Carbon Steel A350 Class 150 reducing threaded flange Carbon Steel A350 Class 150 Pipe Flange

LTCS A350 LF2 Flanges Dimensions

Nominal Pipe Size
NPS

(inches)

ASTM A350 Class 300
Diameter of
Flange

(inches)

No.
of

Bolts

Diameter of
Bolts

(inches)

Diameter of
Bolt Holes
(inches)
Bolt
Circle

(inches)

1/4 3-3/8 4 1/2 0.62 2-1/4
1/2 3-3/4 4 1/2 0.62 2-5/8
3/4 4-5/8 4 5/8 0.75 3-1/4
1 4-7/8 4 5/8 0.75 3-1/2
1-1/4 5-1/4 4 5/8 0.75 3-7/8
1-1/2 6-1/8 4 3/4 0.88 4-1/2
2 6-1/2 8 5/8 0.75 5
2-1/2 7-1/2 8 3/4 0.88 5-7/8
3 8-1/4 8 3/4 0.88 6-5/8
3-1/2 9 8 3/4 0.88 7-1/4
4 10 8 3/4 0.88 7-7/8
5 11 8 3/4 0.88 9-1/4
6 12-1/2 12 3/4 0.88 10-5/8
8 15 12 7/8 1 13
10 17-1/2 16 1 1.12 15-1/4
12 20-1/2 16 1-1/8 1.25 17-3/4
14 23 20 1-1/8 1.25 20-1/4
16 25-1/2 20 1-1/4 1.38 22-1/2
18 28 24 1-1/4 1.38 24-3/4
20 30-1/2 24 1-1/4 1.38 27
24 36 24 1-1/2 1.62 32
SA350 LF2 Cl1 threaded flange can be used in range of -46ºC to 345ºC, LTCS flange are available in class 150 to class 2500

Weight Chart of ASTM A350 Gr LF2 Flange

NPS (In) Diameter of
Bolts
(In)
No.
of
Bolts
Bolt
Circle
(In)
Diameter of
Flange
(In)
Diameter of
Bolt Holes
(In)
1/4 1/2 4 2-1/4 3-3/8 0.62
1/2 1/2 4 2-3/8 3-1/2 0.62
3/4 1/2 4 2-3/4 3-7/8 0.62
1 1/2 4 3-1/8 4-1/4 0.62
1-1/4 1/2 4 3-1/2 4-5/8 0.62
1-1/2 1/2 4 3-7/8 5 0.62
2 5/8 4 4-3/4 6 0.75
2-1/2 5/8 4 5-1/2 7 0.75
3 5/8 4 6 7-1/2 0.75
3-1/2 5/8 8 7 8-1/2 0.75
4 5/8 8 7-1/2 9 0.75
5 3/4 8 8-1/2 10 0.88
6 3/4 8 9-1/2 11 0.88
8 3/4 8 11-3/4 13-1/2 0.88
10 7/8 12 14-1/4 16 1
12 7/8 12 17 19 1
14 1 12 18-3/4 21 1.12
16 1 16 21-1/4 23-1/2 1.12
18 1-1/8 16 22-3/4 25 1.25
20 1-1/8 20 25 27-1/2 1.25
24 1-1/4 20 29-1/2 32 1.38

We are biggest Manufacturer of Lf2 Carbon Steel Blind Flange. ASTM a350 grade lf2 cl1 Flanges is used extensively in the Petrolium Industry. We are Supplier & Manufacturer of A350 Grade Lf2 Flanges

A350 LF2 flange pressure rating

Temp. °C Working Pressures by Classes, bar
400# 150# 75# 300#
−29~38 68.1 19.6 9.8 51.1
50 66.8 19.2 9.6 50.1
100 62.1 17.7 8.8 46.6
150 60.1 15.8 7.9 45.1
200 58.4 13.8 6.9 43.8
250 55.9 12.1 6.0 41.9
300 53.1 10.2 5.1 39.8
325 51.6 9.3 4.6 38.7
350 50.1 8.4 3.1 37.6
375 48.5 7.4 36.4
400 46.3 6.5 34.7
425 38.4 5.5 28.8
450 30.7 4.6 23.0
475 23.2 3.7 17.4
500 15.7 2.8 11.8
538 7.9 1.4 5.9

A350 LF2 temperature range

Temperature range -46ºC to 425°C

A350 LF2 yield strength

Grade Yield Strength, min.
ksi MPa
LF2 CL1 36 250
LF2 CL2 36 250