Low Temperature Carbon Steel LF5 Flanges

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Esha Steel, a trusted manufacturer and supplier located in Kolkata, specializes in top-notch Low Temperature Carbon Steel LF5 Flanges that are crafted for outstanding performance in extremely low-temperature and cryogenic settings. These flanges are produced in accordance with the rigorous ASTM A350 LF5 standards, guaranteeing remarkable toughness, precise dimensional accuracy, and impressive durability even in sub-zero conditions. With their excellent weldability and resistance to corrosion, LF5 flanges are built to provide safe, leak-proof connections in high-pressure piping systems. Esha Steel employs strict quality control and cutting-edge manufacturing techniques, making these flanges perfect for the oil & gas, LNG, petrochemical, and refrigeration sectors.

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LTCS LF5 Blind Flanges

Low Temperature Carbon Steel LF5 Forged Flanges

Carbon Steel LF5 Threaded Flanges

Table of Contents

What is Low Temperature Carbon Steel LF5 Flanges?

Low Temperature Carbon Steel LF5 Flanges are made up of carbon, manganese, silicon, and small amounts of trace elements like phosphorus and sulfur, all carefully balanced. Built to withstand low temperatures, these flanges showcase exceptional impact toughness, strong yield strength, and dependable tensile properties. Their microstructure ensures stability at sub-zero temperatures, helping to prevent brittle fractures. LF5 flanges also boast excellent weldability and durability, making them perfect for high-pressure piping and equipment in cold environments. Their consistent mechanical performance guarantees long-term safety, structural integrity, and reliable operation in temperature-sensitive applications.

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Carbon Steel Flanges in India

Low Temperature Carbon Steel LF5 Flanges Specification

  • Material : ASTM A350 LF5 CL1/CL2
  • Size Range: 1/2″ (15 NB) to 48″ (1200NB), ASME B16.47 Flanges size range: 26″ to 60″
  • Typical manufacturing specifications: A350 LF5 , ASME A350 LF5
  • Origin: European Origin, Indian Origin, US Origin, Korean Origin, Sweden Origin, Ukraine Origin, Japanese Origin Materials
  • ASME SA350 LF5 LTCS Flanges Manufacturing Dimensions: ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
  • Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
  • Class / Pressure: 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
  • Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ), LJ, FM , R.T.J , R.J and so on
  • ANSI ClaASME SA350 LF5 LTCS Flanges: 150 to 2500 Size: 1/2″-24″
  • AWWA ClaASME SA350 LF5 LTCS Flanges: classes B, D, E, F Size: 3″-144″
  • ANSI B16.5 ASTM A350 LF5 LTCS Flanges pressure classes: 150, 300, 400, 600, 900, 1500 and 2500 for ASME B16.5
  • ANSI B16.47 ASTM A350 LF5 LTCS Flanges pressure classes: 75, 150, 300, 400, 600, 900 for ASME B16.47
  • Specialized in: A350 LF5 SORF, SOFF, BLRF, BLFF, WNRF, WNFF, SWRF, SWFF, Threaded RF, Threaded FF & LJ

Low Temperature Carbon Steel LF5 Flanges Chemical Composition

Element

Composition, w.t % Grades

 

LF5

C

≤0.30

Mn

0.60-1.35

P

≤0.035

S

≤0.040

Si

0.20-0.35

Ni

1.00-2.00

Cr

≤0.30

Mo

≤0.12

Cu

≤0.40

Cb

≤0.02

LTCS LF5 Flanges Mechanical Properties

Grade/Class

Tensile Strength

Yield Strength, min.

Elongation, min.

Hardness, max.

LF5

70–95

485–655

37.5

260

22

197

If You Are Looking To Buy High Quality Pipes, Sheet, Fittings and Flanges

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

Top Manufacturer and Supplier of Low Temperature Carbon Steel LF5 Flanges in Kolkata India

Esha Steel is one of the most prominent manufacturers and suppliers of superior quality Low Temperature Carbon Steel LF5 Flanges in Kolkata India. As experts in steel solutions, we supply a complete spectrum of products like Carbon Steel, Alloy Steel, Mild Steel, and Galvanized Steel. Our product range comprises Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. Known for our reliable delivery and first-rate customer service, we are committed to supplying high-quality steel materials that guarantee durability and excellent performance in numerous industrial applications. 

A350 LF5 Pressure Rating Chart

ASME/ANSI B 16.5LTCS A350 LF5 Welding Neck Flange, LTCS A350 LF5 Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, LTCS A350 LF5 Lap Joint Flange, Threaded Flange, LTCS A350 LF5 Ring Type Joint Flange
PRESSURE CLASS150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B 16.47LTCS A350 LF5 Welding Neck Flange, LTCS A350 LF5 Blind Flange [Series A & B]
PRESSURE CLASS75, 150, 300, 400, 600, 900
ASME/ANSI B 16.36LTCS A350 LF5 Welding Neck Flange, LTCS A350 LF5 Slip on Flange, LTCS A350 LF5 Threaded Flange
PRESSURE CLASS300, 400, 600, 900, 1500, 2500
BS 4504 SEC 3.1LTCS A350 LF5 Welding Neck Flange, LTCS A350 LF5 Hubbed Slip on Flange, LTCS A350 LF5 Hubbed Threaded Flange, Lapped Pipe End Flange, LTCS A350 LF5 Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange
PRESSURE CLASSPN 2.5 TO PN 40
BS 4504[PART 1]LTCS A350 LF5 Welding Neck Flange, LTCS A350 LF5 Hubbed Slip-On Hubbed Threaded, Plate Flange, LTCS A350 LF5 Loose Plate With Weld On Plate Collar, Blank Flange
PRESSURE CLASSPN 2.5 TO PN 400
BS 1560 BOSSLTCS A350 LF5 Welding Neck Flange, Socket Welding Flange, LTCS A350 LF5 Slip-On Flange, LTCS A350 LF5 Blind Flange, LTCS A350 LF5 Screwed Boss Flange, LTCS A350 LF5 Lapped Flange
PRESSURE CLASS150, 300, 400, 600, 900, 1500, 2500
BS10LTCS A350 LF5 Welding Neck Flange, LTCS A350 LF5 Plate Slip-On Flange, LTCS A350 LF5 Screwed Boss Flange, Slip-On Boss Flange, LTCS A350 LF5 Blind Flange
TABLED, E, F, H
DIN FLANGESDIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASSPN 6 TO PN 100

Low Temperature Carbon Steel LF5 Flange Dimensions

NPS O.D. of Flange Flanges Thickness Diameter of RF Diameter of Hub at Base Lengtd Tdru Hub Bore or Diameter Dia. of Hub at Bevel Radius of Fillet Deptd of Socket
Welding (WN) Neck Slip-On (SORF) Threaded (NPT) Socket (SWRF) Lap Joint (Loose) Slip-on (SORF) Socket (SWRF) Lap Joint (Loose)
O Q R X Y Y Y W B H r Z
1/2 3-1/2 7/16 1-3/8 1-3/16 1-7/8 5/8 5/8 .88 .90 .84 1/8 3/8
3/4 3-7/8 1/2 1-11/16 1-1/2 2-1/16 5/8 5/8 1.09 1.11 1.05 1/8 7/16
1 4-1/4 9/16 2 1-15/16 2-3/16 11/16 11/16 1.36 1.38 1.32 1/8 1/2
1-1/4 4-5/8 5/8 2-1/2 2-5/16 2-1/4 13/16 13/16 1.70 1.72 1.66 3/16 9/16
1-1/2 5 11/16 2-7/8 2-9/16 2-7/16 7/8 7/8 1.95 1.97 1.90 1/4 5/8
2 6 3/4 3-5/8 3-1/16 2-1/2 1 1 2.44 2.46 2.38 5/16 11/16
2-1/2 7 7/8 4-1/8 3-9/16 2-3/4 1-1/8 1-1/8 2.94 2.97 2.88 5/16 3/4
3 7-1/2 15/16 5 4-1/4 2-3/4 1-3/16 1-3/16 3.57 3.60 3.50 3/8 13/16
3-1/2 8-1/2 15/16 5-1/2 4-13/16 2-13/16 1-1/4 1-1/4 4.07 4.10 4.00 3/8 7/8
4 9 15/16 6-3/16 5-5/16 3 1-5/16 1-5/16 4.57 4.60 4.50 7/16 15/16
5 10 15/16 7.5/16 6-7/16 3-1/2 1-7/16 1-7/16 5.66 5.69 5.56 7/16 15/16
6 11 1 8-1/2 7-9/16 3-1/2 1-9/16 1-9/16 6.72 6.75 6.63 1/2 1-1/16
8 13-1/2 1-1/8 10-5/8 9-11/16 4 1-3/4 1-3/4 8.72 8.75 8.63 1/2 1-1/4
10 16 1-3/16 12-3/4 12 4 1-15/16 1-15/16 10.88 10.92 10.75 1/2 1-5/16
12 19 1-1/4 15 14-3/8 4-1/2 2-3/16 2-3/16 12.88 12.92 12.75 1/2 1-9/16
14 21 1-3/8 16-1/4 15-3/4 5 2-1/4 3-1/8 14.14 14.18 14.00 1/2 1-5/8
16 23-1/2 1-7/16 18-1/2 18 5 2-1/2 3-7/16 16.16 16.19 16.00 1/2 1-3/4
18 25 1-9/16 21 19-7/8 5-1/2 2-11/16 3-13/16 18.18 18.lf2 18.00 1/2 1-15/16
lf2 27-1/2 1-11/16 23 22 5-11/16 2-7/8 4-1/16 lf2.lf2 lf2.25 lf2.00 1/2 2-1/8
24 32 1-7/8 27-1/4 26-1/8 6 3-1/4 4-3/8 24.25 24.25 24.00 1/2 2-1/2

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Types of Low Temperature Carbon Steel LF5 Flanges

Low Temperature Carbon Steel LF5 Spectacle Blind Flanges
Carbon Steel LF5 Long Weld Neck Flanges
Carbon Steel LF5 Lap Joint Flanges
LF5 Carbon Steel Socket weld Flanges
LF5 Carbon Steel Weld Neck Flanges
Carbon Steel LF5 Slip On Flanges

Carbon Steel LF5 Flange Weight Chart

Nominal Pipe Sizes (NPS) Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (Loose) Blind (BLRF) Weld Neck (WRNR)
½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
1¼ 3 3 3 3 3 3
1½ 3 3 3 3 4 4
2 5 5 5 5 5 6
2½ 8 8 8 8 7 10
3 9 9 9 9 9 11.5
3½ 11 12 11 11 13 12
4 13 13 13 13 17 16.5
5 15 15 15 15 lf2 21
6 19 19 19 19 27 26
8 30 30 30 30 47 42
10 43 43 43 43 70 54
12 64 64 64 64 123 88
14 90 90 90 105 140 114
16 106 98 98 140 180 140
18 130 130 130 160 2lf2 165
lf2 165 165 165 195 285 197
22 185 185 185 245 355 225
24 2lf2 2lf2 2lf2 275 430 268

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Uses of Low Temperature Carbon Steel LF5 Flanges

Low Temperature Carbon Steel LF5 Flanges are widely utilized in industries that demand robust, impact-resistant components capable of functioning in low-temperature and cryogenic conditions. These flanges are particularly suited for LNG facilities, oil refineries, natural gas processing plants, offshore platforms, refrigeration systems, and cold-storage distribution networks. They find extensive use in pressure vessels, heat exchangers, cryogenic pipelines, and systems handling low-temperature fluids.

Industry We Serve

Food Industry

Oil and Gas Industry

petrochemical industry