Low Temperature Carbon Steel LF787 Flanges

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Dang Steel stands out as a top-notch manufacturer and supplier of high-performance steel components, proudly based in Da Nang, Vietnam. They specialize in Low Temperature Carbon Steel LF787 Flanges, catering to industries that demand reliable and durable piping solutions. With a strong focus on quality, innovation, and customer satisfaction, Dang Steel produces flanges that adhere to strict international standards like ASTM and ASME. Thanks to their advanced production technology and thorough quality control processes, Dang Steel guarantees that its LF787 flanges perform exceptionally well under low temperatures and high pressures, making them perfect for critical infrastructure and industrial applications.

LTCS LF787 Flanges Manufacturer in Hanoi, Low Temperature Carbon Steel LF787 Flanges Thickness, LTCS LF787 Flanges Supplier in Vietnam, Carbon Steel LF787 Flanges Stockist in Sapa, Low Temperature Carbon Steel LF787 Flanges Size Chart, ASME SA350 Flanges Supplier in Vietnam, Low Temperature Carbon Steel LF787 Flanges Exporter in Hue, LTCS LF787 Flanges Price in Hai Phong, LTCS LF787 Flanges Price in Hai Phong, LTCS LF787 Flanges Supplier in Sapa, Low Temperature Carbon Steel LF787 Flanges Distributor in Vietnam

LTCS LF787 Blind Flanges

Low Temperature Carbon Steel LF787 Forged Flanges

Carbon Steel LF787 Threaded Flanges

Table of Contents

What is Low Temperature Carbon Steel LF787 Flanges?

Low Temperature Carbon Steel LF787 Flanges are specifically designed for use in cryogenic and sub-zero environments. Their chemical makeup usually includes carbon, manganese, phosphorus, sulfur, silicon, and higher levels of nickel to enhance low-temperature toughness. These flanges boast impressive tensile strength (minimum 485 MPa), yield strength (minimum 250 MPa), and outstanding impact resistance even at frigid temperatures as low as -50°F (-45°C). Manufactured in line with ASTM A350 standards, LF787 flanges provide excellent weldability, machinability, and structural integrity, making them ideal for pressure systems operating in extreme cold conditions.

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Low Temperature Carbon Steel LF787 Flanges Specification

  • Material : ASTM A350 LF787 CL1/CL2
  • Size Range: 1/2″ (15 NB) to 48″ (1200NB), ASME B16.47 Flanges size range: 26″ to 60″
  • Typical manufacturing specifications: A350 LF787 , ASME A350 LF787
  • Origin: European Origin, Indian Origin, US Origin, Korean Origin, Sweden Origin, Ukraine Origin, Japanese Origin Materials
  • LTCS A350 LF787 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 ClaLTCS A350 LF787 Flanges: 150 to 2500 Size: 1/2″-24″
  • AWWA ClaLTCS A350 LF787 Flanges: classes B, D, E, F Size: 3″-144″
  • ANSI B16.5 A350 LF787 Flanges pressure classes: 150, 300, 400, 600, 900, 1500 and 2500 for ASME B16.5
  • ANSI B16.47 A350 LF787 Flanges pressure classes: 75, 150, 300, 400, 600, 900 for ASME B16.47

Low Temperature Carbon Steel LF787 Flanges Chemical Composition

Element Composition
Carbon, max 0.07
Manganese 0.40–0.70
Phosphorus, max 0.025
Sulfur, max 0.025
Silicon [Note A] 0.40 max
Nickel 0.70–1.00
Chromium 0.60–0.90
Molybdenum 0.15–0.25
Copper 1.00–1.30
Columbium 0.02 min
Vanadium 0.03 max

Low Temperature Carbon Steel LF787 Flanges Mechanical Properties

Tensile Class Tensile Strength, ksi [MPa] Yield Strength, min, ksi [MPa] [Note B, C] Elongation Reduction of Area, min, %
Round Specimen in 4D, min, % Strip Specimen in 2 Inch [50mm], min, %
Class 2 65–85 [450–585] 55 [380] 20 28 45
Class 3 75–95 [515–655] 65 [450] 20 28 45

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 LF787 Flanges in Da Nang, Vietnam

Dang Steel is one of the most prominent manufacturers and suppliers of superior quality Low Temperature Carbon Steel LF787 Flanges in Da Nang, Vietnam. 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 LF787 Pressure Rating Chart

ASME/ANSI B 16.5 LTCS A350 LF787 Welding Neck Flange, LTCS A350 LF787 Slip on Flange, Blind Flange, High Hub Blind Flange, Socket Weld Flange, LTCS A350 LF787 Lap Joint Flange, Threaded Flange, LTCS A350 LF787 Ring Type Joint Flange
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
ASME/ANSI B 16.47 LTCS A350 LF787 Welding Neck Flange, LTCS A350 LF787 Blind Flange [Series A & B]
PRESSURE CLASS 75, 150, 300, 400, 600, 900
ASME/ANSI B 16.36 LTCS A350 LF787 Welding Neck Flange, LTCS A350 LF787 Slip on Flange, LTCS A350 LF787 Threaded Flange
PRESSURE CLASS 300, 400, 600, 900, 1500, 2500
BS 4504 SEC 3.1 LTCS A350 LF787 Welding Neck Flange, LTCS A350 LF787 Hubbed Slip on Flange, LTCS A350 LF787 Hubbed Threaded Flange, Lapped Pipe End Flange, LTCS A350 LF787 Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange
PRESSURE CLASS PN 2.5 TO PN 40
BS 4504[PART 1] LTCS A350 LF787 Welding Neck Flange, LTCS A350 LF787 Hubbed Slip-On Hubbed Threaded, Plate Flange, LTCS A350 LF787 Loose Plate With Weld On Plate Collar, Blank Flange
PRESSURE CLASS PN 2.5 TO PN 400
BS 1560 BOSS LTCS A350 LF787 Welding Neck Flange, Socket Welding Flange, LTCS A350 LF787 Slip-On Flange, LTCS A350 LF787 Blind Flange, LTCS A350 LF787 Screwed Boss Flange, LTCS A350 LF787 Lapped Flange
PRESSURE CLASS 150, 300, 400, 600, 900, 1500, 2500
BS10 LTCS A350 LF787 Welding Neck Flange, LTCS A350 LF787 Plate Slip-On Flange, LTCS A350 LF787 Screwed Boss Flange, Slip-On Boss Flange, LTCS A350 LF787 Blind Flange
TABLE D, E, F, H
DIN FLANGES DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673
PRESSURE CLASS PN 6 TO PN 100

Low Temperature Carbon Steel LF787 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 LF787 Flanges

Low Temperature Carbon Steel LF787 Spectacle Blind Flanges
Carbon Steel LF787 Long Weld Neck Flanges
Carbon Steel LF787 Lap Joint Flanges
LF787 Carbon Steel Socket weld Flanges
LF787 Carbon Steel Weld Neck Flanges
Carbon Steel LF787 Slip On Flanges

Carbon Steel LF787 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
Âľ 2 2 2 2 2 2
1 2 2 2 2 2 3
1ÂĽ 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 LF787 Flanges

LF787 flanges find their place in various industries where low-temperature performance and high strength are essential. You’ll commonly see them in LNG processing plants, cryogenic storage systems, offshore drilling platforms, natural gas pipelines, and petrochemical facilities. These flanges ensure leak-proof connections in piping systems that function under high pressure and extreme cold. Their mechanical strength and resistance to brittle fracture make them vital for environments where safety and durability are paramount.

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