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ASTM A350 LF2 Flanges

ASTM A350 LF2 Flanges

ASTM A350 LF2 Flanges
Size:  1/2 to 48"
ASME Standard ASME B16.47, ASME B16.5, ASME B16.48, MSS SP-44
Pressure 150 Lbs - 2500 Lbs
Thread Types BSPP, BSPT, NPT, MNPT
UNS UNS K03011
Coating Oil Varnished, Anti Rust painting
Production method Machined, Forged, Heat treated
Connection Welding
ASTM A350 LF2 Flanges

ASTM A350 LF2 Flanges

SA350 LF2 Blind Flange

SA350 LF2 Blind Flange

A350 LF2 Weld Neck Flange

A350 LF2 Weld Neck Flange



Table of Contents


SA350 LF2 Blind Flange Manufacturer in India, check A350 LF2 Class 1 and CL2 Specification

ASTM A350 LF2 Flanges Specification

ASTM A350 LF2 Flanges Sizes

  • 1/2 - 48 inch
  • 15 NB to 1200NB
  • PN 2.5 to PN 400





Sizes

A350 Grade LF2 Forged Steel Flanges Pressure Class

  • Class 2500
  • Class 1500
  • Class 900
  • Class 600
  • Class 400
  • Class 300
  • Class 150
Pressure Class

ASTM A350 Flanges American Standard

  • ASME B16.36
  • ASME B16.5
  • ASME B16.47
  • ASME B16.48
  • MSS SP-44



American Standard

ASME SA350 Lap Joint Flange Face Types

  • Male & Female (M&F)
  • Tongue and Groove (T&G)
  • Ring Joint Face (RTJ)
  • Raised Face (RF)
  • Flat Face (FF)




Face Types

SA350 LF2 CL1 Hot Forged Flange Origin

  • Janpanese
  • Korean
  • Indian
  • European
  • American




Origin

LF2 Material Thread Types

  • MPT thread
  • NPT thread
  • MNPT thread (Male)
  • FNPT thread (Female) – ASME B1.20.1
  • BSPT thread (Female)
  • BSPP thread (Female & male)
  • BSP thread
  • FPT thread

Thread Types

A350 Carbon Steel Flange Types

  • Weld Neck
  • Socket Weld
  • Blind
  • Slip On
  • Sorf Flange
  • Lap Joint Flange


Types

ASME SA350 LF2 Weld Flanges Certificate

  • 100% Radiography Test Report
  • Third Party Inspection Reports
  • NACE MR0175/ MR0103
  • MTC BS EN 10204 3.2
  • MTC BS EN 10204 3.1
  • Certificates of Raw Material

Certificate

UNS K03011 Pipe Flange Manufacturing Standard

  • USA – MSS SP44
  • Australia/ UK – BS 10
  • Canada – CSA B16.5/ B16.47
  • Malaysia – MS 253
  • Europe – ISO 7005, BS EN 1092-1
  • France – NF E 29-200/ NF E 29-203
Manufacturing Standard

A350 LF2 Steel Slip on Flange Coating

  • Oil Varnished
  • Anti-Rust
  • Galvanized
  • Electric Zinc

Coating

ASTM A350 Grade LF2 Plate Flanges Process

  • Forming
  • Packaging
  • Heat treatment
  • Inspection test
  • Machining
Process

SA350 Gr LF2 CL1 Reducing Flange Packaging

  • Plastic bag
  • Wooden case
  • Or custom
  • Carton box
Packaging

Manufacturing A350 LF2 Weld Neck Flange from High Carbon Steel in RF, FF, MFM, RJ and TG Face

SA350 LF2 Blind Flange Face Types

Face Types Full Form
RFBL Raised Face Blind
BLRF Blind Raised Face
BLRTJ  Blind Raised Face Ring Joint
FFBL Flat Face Blind
BLFF Blind Flat Face
RTJBL Ring Type Joint Blind

ASTM A350 Gr LF2 Spectacle Figure 8 Blind Flange for Oil and Gas Pipelines

Carbon Steel ASTM A350 LF2 BLRF Flange Applications

Carbon Steel ASTM A350 LF2 BLRF Flange Applications
Accept Custom Sizes A350 LF2 Flanges Orders and produce as per ANSI/ EN/ DIN/ BS/ AS/ UNI/ Gost/ JIS

ASTM A350 LF2 Flanges Supplier in India as per American and Eurpean Standards

A350 LF2 Weld Neck Flange Standards

  • ASME B16.34
  • ASME B16.20
  • JIS B2220
  • BS 4504
  • SABS 1123
  • ASME B16.48
  • EN 1092-1
  • ASME B16.5
  • GOST 12820
ANSI 150 LBS to 2500 LBS Large Diameter SA350 LF2 CL1 Slip On Flange in Galvanized and Black Surface

Supplier of ASTM A350 LF2 Flanges provides Hot Dip and Anti Rust Coating

ASTM A350 Gr LF2 Spectacle Flange Coatings

  • Oil Varnished
  • Alloy material coated
  • Electro galvanizing coating
  • Hot dip galvanized
  • Anti-rust painting
  • Electric zinc coated (Yellow zinc/ white)
  • Black phosphating treatment

ASTM A350 LF2 Flanges Size Chart

Size (NPS) OD WT
1-1 / 4 4-5 / 8 5 / 8
1 / 2 3-1 / 2 7 / 16
1-1 / 2 5 11 / 16
1 4-1 / 4 9 / 16
2 6 3 / 4
2-1 / 2 7 7 / 8
3 / 4 3-7 / 8 1 / 2
3-1 / 2 8-1 / 2 15 / 16
3 7-1 / 2 15 / 16
4 9 15 / 16
5 10 15 / 16
6 11 1
8 13-1 / 2 1-1 / 8
12 19 1-1 / 4
14 21 1-3 / 8
18 25 1-9 / 16
20 27-1 / 2 1-11 / 16

SA350 LF2 CL1 Slip On Flange Pressure Ratings

ASTM A350 LF2 Flanges Pressure And Temperature Ratings
Temperature °F Class 2500 As Per ASME B16.5 Class 1500 As Per ASME B16.5 Class 900 As Per ASME B16.5 Class 600 As Per ASME B16.5 Class 400 As Per ASME B16.5 Class 300 As Per ASME B16.5 Class 150 As Per ASME B16.5
-20 to 100 6000 3600 2160 1440 960 720 275
200 5000 3000 1800 1200 800 600 230
400 4140 2485 1490 995 660 495 190
600 3640 2185 1310 875 580 435 140
700 3540 2125 1275 850 565 425 110
800 3360 2015 1210 805 540 405 80
900 3240 1945 1165 780 520 390 50
1000 2675 1605 965 640 430 320 20
1100 2145 1285 770 515 345 255 20
1200 1285 770 465 310 205 155 20
1300 715 430 255 170 115 85 20
1400 400 240 145 95 65 50 20
1500 230 135 80 55 35 25 10

Various Types Of ASTM A350 LF2 Flanges

ASTM A350 LF2 Flange Manufacturer Provides Testing and Various Forms

A350 LF2 BLRF Flange

A350 LF2 BLRF Flange

SA 350 LF2 CL1 WNRF Flange

SA 350 LF2 CL1 WNRF Flange

ASTM A350 Gr LF2 Socket Weld Flange

ASTM A350 Gr LF2 Socket Weld Flange

A350 LF2 Carbon Steel Threaded Flange

A350 LF2 Carbon Steel Threaded Flange

ASME SA350 LF2 Slip on Flange

ASME SA350 LF2 Slip on Flange

SA 350 LF2 CL 1 Reducing Flange

SA 350 LF2 CL 1 Reducing Flange

ASTM A350 gr LF2 Lap Joint Flange

ASTM A350 gr LF2 Lap Joint Flange

UNS K03011 Plate Flanges

UNS K03011 Plate Flanges

SA350 Gr LF2 CL2 Orifice Flange

SA350 Gr LF2 CL2 Orifice Flange

ASTM A350 LF2 Temperature Range

ASTM A350 LF2 Supplier in India provides premium-grade flanges with excellent Temperature Range

Temperature (°C) 2500 1500 900 600 400 300 150
100 388.3 233 139.8 93.2 62.1 46.6 17.7
150 375.6 225.4 135.2 90.2 60.1 45.1 15.8
200 365 219 131.4 87.6 58.4 43.8 13.8
250 349.5 209.7 125.8 83.9 55.9 41.9 12.1
300 331.8 199.1 119.5 79.6 53.1 39.8 10.2
350 313 187.8 112.7 75.1 50.1 37.6 8.4
400 289.3 173.6 104.2 69.4 46.3 34.7 6.5
450 191.7 115 69 46 30.7 23 4.6
500 97.9 58.8 35.3 23.5 15.7 11.8 2.8

ASME SA350 LF2 Reducing Flange Impact Test

Grade Test Temperature, ℉ [℃]
LF2 Class 1 -50 [-46]
LF2 Class 2 -0 [-18]

Weight Chart of LTCS A350 LF2 Flanges

Loose (Lap Joint) NPS (Nominal Pipe Size) WRNR (Weld Neck) SORF (Slip On) NPT (Threaded) SWRF (Socket Weld) BLRF (Blind)
1 ½ 2 1 1 2 2
2 1 3 2 2 2 2
3 1½ 4 3 3 3 4
5 2 6 5 5 5 5
8 2½ 10 8 8 8 7
11 3½ 12 11 12 11 13
13 4 16.5 13 13 13 17
19 6 26 19 19 19 27
30 8 42 30 30 30 47
64 12 88 64 64 64 123
140 16 140 106 98 98 180
160 18 165 130 130 130 220
245 22 225 185 185 185 355
275 24 268 220 220 220 430

ASTM A350 LF2 Flanges Dimensions

Normal Pipe Size (NPS) Thickness Of Flanges Diameter of Raised Face Lengtd Tdru Hub Radius of Fillet Hub at Bevel Diameter Socket Deptd
Weld Neck (WN) SORF (Slip-On) NPT (Threaded) SWRF (Socket) Loose (Lap Joint)
Q R Y Y Y r H Z
3/4 1/2 1-11/16 2-1/16 5/8 5/8 1/8 1.05 7/16
1 9/16 2 2-3/16 11/16 11/16 1/8 1.32 1/2
1-1/2 11/16 2-7/8 2-7/16 7/8 7/8 1/4 1.90 5/8
2-1/2 7/8 4-1/8 2-3/4 1-1/8 1-1/8 5/16 2.88 3/4
3 15/16 5 2-3/4 1-3/16 1-3/16 3/8 3.50 13/16
4 15/16 6-3/16 3 1-5/16 1-5/16 7/16 4.50 15/16
6 1 8-1/2 3-1/2 1-9/16 1-9/16 1/2 6.63 1-1/16
8 1-1/8 10-5/8 4 1-3/4 1-3/4 1/2 8.63 1-1/4
10 1-3/16 12-3/4 4 1-15/16 1-15/16 1/2 10.75 1-5/16
14 1-3/8 16-1/4 5 2-1/4 3-1/8 1/2 14.00 1-5/8
16 1-7/16 18-1/2 5 2-1/2 3-7/16 1/2 16.00 1-3/4
18 1-9/16 21 5-1/2 2-11/16 3-13/16 1/2 18.00 1-15/16
20 1-11/16 23 5-11/16 2-7/8 4-1/16 1/2 20.00 2-1/8
24 1-7/8 27-1/4 6 3-1/4 4-3/8 1/2 24.00 2-1/2

A350 LF2 Weld Neck Flanges Torque Chart

Nom. Flg. Size Ins. mm A/F Ins. Bolting No. * Dia. ins Bolt Lubricant Copperslip μ=0.1 Torque lbf.ft Nm
1/2 7/8 4 * 1/2 30 20
1-1/2 1-1/4 4 * 3/4 130 105
3/4 1-1/16 4 * 5/8 50 40
2 1-1/16 8 * 5/8 95 75
3 1-1/4 8 * 3/4 150 120
4 1-7/16 8 * 7/8 245 195
8 1-13/16 12 * 1-1/8 590 470
10 2 16 * 1-1/4 725 575
12 2 20 * 1-1/4 725 575
14 2-3/16 20 * 1-3/8 880 695
16 2-3/8 20 * 1-1/2 1120 885
18 2-9/16 20 * 1-5/8 1645 1295
20 2-9/16 24 * 1-5/8 1645 1295
36 3-7/8 28 * 2-1/2 4755 3710

ASTM A350 LF2 Blind Flange HSN Code

Product HSN Code
A350 LF2 Flanges 73079190

ASTM A350 LF2 Class 1 Plate Flange Benefits

ASTM A350 LF2 Class 1 Plate Flange Benefits

CS A350 Lf2 Cl2 Forged Steel Flanges Thermal Properties

Property Metric Imperial
Thermal expansion 10.4 µm/m°C 5.78 µin/in°F
Thermal conductivity 21.6 W/mK 150 BTU in/hr.°F

SA 350 gr LF2 Pipe Flange Charpy v Notch Test

Grade Minimum Impact Value for One Specimen, ft-lbf Minimum Impact Value ft-lbf
LF2 Class 1 12 15
LF2 Class 2 15 20

Carbon Steel A350 LF2 Slip on Flange Material Properties

Property Value
Impact Energy (KV -50°F [-45°C]) > 16 J
Reduction of Area > 30 %
Class 1 HB After HT

ASTM A350 LF2 Equivalent Material

Types Specification UNS DIN Astm A350 Lf2 Equivalent European DIN W. No
C-Mn-Fe A350-LF2 K03011 TSTE 355 DIN 18103 A352-LCB A352-LCC 1.0566

SA350 Lf2 Socket Weld Flanges Energy Requirement

Energy Required for 3 Specimens, (J) Energy Permitted for 1 Specimen ft.lbf Test Temperature (°C)
20 12 −46

Low Temperature Carbon Steel A350 Lf2 Hot Forged Flange Chemical Composition

Element Weight %
Nb ≤ 0.02
Cu ≤ 0.40
V ≤ 0.08
P ≤ 0.035
Cr ≤ 0.30
S ≤ 0.040
C ≤ 0.30
Mo ≤ 0.12
Si 0.15~0.30
Mn 0.60~1.35
Ni ≤ 0.40

ASTM A350 LF2 class 1 Socket Weld Flange Physical Properties

Melting Point 1425°C
Density 7.85 g/cm³

Mechanical Properties of A350 Carbon Steel Flange

Grade/Class Yield Strength, min. Tensile Strength Hardness, max. Elongation, min.
ksi MPa ksi MPa HBW %
LF2 CL1 36 250 70–95 485–655 197 22
LF2 CL2 36 250 70–95 485–655 197 22

Provide ASTM A105 Flange to the different Countries Listed Below

Country Name Flag Country Name Flag
Zambia Zambia Ghana Ghana
Algeria Algeria Nigeria Nigeria
Kenya Kenya Angola Angola
Tunisia Tunisia South Africa South Africa
Egypt Egypt Ethiopia Ethiopia
Tanzania Tanzania Morocco Morocco