• sales@shikharsteel.com

ASTM A350 LF2 Flanges

Sizes in Stock

Sizes in Stock

1/2" to 24"

Sizes Can Be Manufacture

Sizes Can Be
Manufacture

Up to DN1600

UNS Designation

UNS Designation

UNS K03011

Manufacturing Way

Manufacturing Way

Forging

Environment

Environment

Low Temperature

Use

Use

Chemical Industry

Connection Types

Connection Types

Welding & Threaded

Test

Test

Chemical Analysis


ASTM A350 LF2 flanges Overview

Table Of Content

LTCS Blind Flange Manufacturer Offers Forging Services


ASTM A350 LF2 Flanges Specification



Manufacturing Size Range

A350 LF2 Flanges Manufacturing Sizes

  • ½" to 24"
  • DN15 to DN1500
  • PN 2.5 to PN 400
  • Contact ASTM A350 LF2 Flanges Manufacturer in India For Above 28"
Pressure Class

LF2 Flange Pressure Class

  • Class 125, Class 150
  • Class 300, Class 400
  • Class 600, Class 900
  • Class 1500, Class 2500


Faces

A350 Flange Faces

  • Ring Type Joint (RTJ)
  • Flat Face (FF)
  • Raised Face (RF)
  • T&G & M&F Face
American Standard

American Standard of LTCS Flanges

  • ASME B16.5
  • ASME B16.47
  • ASME B16.36
  • ASME B16.48
Manufacturing Process

Low Temperature Carbon Steel Flange Manufacturing Process

  • Forging
  • Plate
  • and Cast
Thickness

A350 LF2 Carbon Steel Flanges Thickness

  • Schedule 10/ 20/ 40
  • Schedule 60/ 80/ 120
  • Schedule 140/ 160/ 180
Process

SA 350 LF2 Material Process

  • Forged and Drilling
  • Stamping and Milling
  • Turning and Rolled
Threads

A350 LF2 Cl1 Flange Threads

  • BSP/ FPT/ NPT
  • BSPT/ MPT (Female)
  • BSPP (Male) & MNPT (Male)
Surface Coatings

A350 LF2 Blind Flange Surface Coatings

  • Anti-rust Paint
  • Zinc Plated
  • Oil Black Paint
Bolts Hole

A350 LF2 Low Temperature Flange Bolts Hole

  • 4 To 8
  • 4 To 24
  • 4 To 48
Application

LTCS Blind Flange Application

  • Chemical Processing
  • Oil & Gas Plants
  • Power Generation
Packaging

A350 LF2 Carbon Steel Flange Packaging

  • Carton Box
  • Wooden Case
  • Plastic Bag (Or Custom)
Suitable Environment

LF2 Cl1 Weld Neck Flange Suitable Environment

  • Sulfuric Acid
  • Seawater
  • Phosphoric Acid
Testing

A350 Gr LF2 Cl1 Slip on Flange Testing & Inspection

  • Tensile Test
  • Material Inspection
  • Impact Test
Connection

ASTM A350 LF2 Class 1 Lap Joint Flange Connection

  • Welding
  • Threaded
European Standard

European Standard of A350 LF2 Material

  • EN 1092-1
  • EN 1092-2
Logistics

SA 350 LF2 Cl 1 Threaded Flange Logistics

  • By Sea & Air
  • France = 30 days
  • Italy = 30 days
  • Malaysia = 10 days
Origin

A350 LF2 Carbon Steel Pipe Flange Origin

  • Janpanese
  • American
  • European
  • Korean
German Standard

A350 LF2 Low Temperature Forged Flange German Standard

  • DIN 2501/ 2573
  • DIN 2543/ 2633
  • DIN 2502/ 2576
Japanese Standard

Japanese Standard of A350 LF2 Plate Flange

  • JIS B2311
  • JIS B2220
  • JIS B2312

Export Country



Enbridge
  • 5", Class 300, Socket Weld Flange
  • Enbridge
  • Calgary, Alberta, Canada
Enerplus
  • 4 1/2, Class 500, FF Weld Neck Flange
  • Enerplus
  • Calgary, Alberta, Canada

Purchase A350 Gr LF2 CL1 Slip On Flange from ISO Approved Supplier in India


LTCS Flanges Weight Chart



NPS NPT (Threaded) SORF (Slip On) SWRF (Socket Weld) BLRF (Blind) Loose (Lap Joint) WRNR (Weld Neck)
1/2 1 1 2 2 1 2
1 2 2 2 2 2 3
3/4 2 2 2 2 2 2
1¼ 3 3 3 3 3 3
2 5 5 5 5 5 6
1½ 3 3 3 4 3 4
2½ 8 8 8 7 8 10
3½ 12 11 11 13 11 12
3 9 9 9 9 9 11.5
4 13 13 13 17 13 16.5
6 19 19 19 27 19 26
5 15 15 15 20 15 21
8 30 30 30 47 30 42
12 64 64 64 123 64 88
10 43 43 43 70 43 54
14 90 90 90 140 105 114
18 130 130 130 220 160 165
16 98 106 98 180 140 140
20 165 165 165 285 195 197
24 220 220 220 430 275 268
22 185 185 185 355 245 225

Buy SA350 LF2 Carbon Steel Weld Neck Flange From Stockist at Excellent Price, Available in RTJ/ RF/ FF Face Types


A350 LF2 Blind Flanges Price List



Size Price in US (Dollar) Price in UAE (Dirham)
DN15 US $2.97 AED 10.91
DN25 US $4.03 AED 14.80
DN20 US $2.97 AED 10.91
DN32 US $5.95 AED 21.85
DN50 US $9.23 AED 33.90
DN40 US $6.13 AED 22.52
DN65 US $15.13 AED 55.57
DN100 US $22.11 AED 81.21
DN80 US $19.19 AED 70.49
DN125 US $26.97 AED 99.06
DN200 US $47.10 AED 173.00
DN150 US $34.34 AED 126.13
DN250 US $58.12 AED 213.48
DN350 US $86.15 AED 316.43
DN300 US $73.45 AED 269.78
DN400 US $123.89 AED 455.05
DN500 US $324.97 AED 1193.62
DN450 US $241.34 AED 886.44
DN600 US $496.17 AED 1822.44
Class & SCH: 150 & SCH 40

Low Temperature Carbon Steel Socket Weld Flange Available in Class 150 to 2500 for High Pressure Applications with MTC EN 10204 3.1

A350 LF2 Carbon Steel Flanges Applications



  • Oil and Gas
  • Power Generation
  • Chemical Processing
  • Pressure Vessels
  • General Industrial Piping
  • Cryogenic Systems


ASTM A350 LF2 Temperature Range



Grade Temperature
ASTM A350 LF2 Flanges -46°C to 343°C

Check Ready Stock of ASME SA350 Grade LF2 Class 2 Lap Joint Flange in Custom Sizes With Tensile Testing as per ASME B16.5

Testing of LTCS Blind Flange



Macro Test

Macro Test

HIC Test

HIC Test

IGC Test

IGC Test

PMI Test

PMI Test

Chemical Analysis

Chemical Analysis

Mechanical Test

Mechanical Test


A350 LF2 Tensile Strength



Property Value
Tensile Strength 480 - 655 MPa

Yield Strength of SA 350 LF2 Material



Property Value
Yield Strength 240 MPa

A350 LF2 Pressure Temperature Rating



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

How to Prevent A350 LF2 Cl1 Flange From Rust?



How to Prevent A350 LF2 Cl1 Flange From Rust?

A350 LF2 Impact Test Temperature



Grade Test Temperature
LF2 Class 1 -46 °C
LF2 Class 2 -18°C

ASTM A350 LF2 Heat Treatment



Method Temperature
Heat Treatment 870 - 940°C

Chemical Composition of LF2 Cl1 Weld Neck Flange



C

Carbon

0.30

Mn

Manganese

0.60 - 1.35

P

Phosphorus

0.035

S

Sulfur

0.040

Si

Silicon

0.15 - 0.30

Mo

Molybdenum

0.12

Ni

Nickel

0.40

Cr

Chromium

0.30

Cu

Copper

0.40

Nb

Niobium

0.02

V

Vanadium

0.08



A350 LF2 Hardness



Property Value
Hardness 197 HB max

Allowable Stresses at Elevated Temperatures of LF2 Flange



Temp. S Temp. S
40 138 350 122
100 138 400 101
65 138 375 117
125 138 425 83.9
200 138 475 51.1
150 138 450 67.0
250 136 500 33.6
325 125 550 12.9
300 129 525 21.3

SA 350 LF2 Cl 1 Threaded Flange Physical Properties



Property Value
Density 7.85 g/cm³
Melting Point 1480°C

Face Types of A350 LF2 Blind Flange



Face Types Diagram
Raised Face (RF) Raised Face
Flat Face (FF) Flat Face
Male Female Face (M&F) Male Female Face
Tongue Groove Face (T&G) Tongue Groove Face
Ring Type Joint (RTJ) Ring Type Joint
Lap Joint Face (LJRF) Lap Joint Face

A350 LF2 Cl1 Flange Material Properties



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

Types of ASTM A350 LF2 Flanges



A350 LF2 Cl 1 Blind Flange

A350 LF2 Cl 1 Blind Flange

ASTM A350 Gr LF2 Cl 1 Weld Neck Flange

ASTM A350 Gr LF2 Cl 1 Weld Neck Flange

A350 Gr LF2 Cl1 Slip On Flange

A350 Gr LF2 Cl1 Slip On Flange

ASME SA 350 LF2 Socket Weld Flange

ASME SA 350 LF2 Socket Weld Flange

A350 Gr LF2 Cl 1 Lap Joint Flange

A350 Gr LF2 Cl 1 Lap Joint Flange

ASTM A350 LF2 Cl1 Plate Flanges

ASTM A350 LF2 Cl1 Plate Flanges

LF2 Cl1 Long Neck Flanges

LF2 Cl1 Long Neck Flanges

ASTM A350 LF2 Class 1 Threaded Flange

ASTM A350 LF2 Class 1 Threaded Flange

SA 350 LF2 Cl 1 Orifice Flange

SA 350 LF2 Cl 1 Orifice Flange

A350 Grade LF2 Spectacle Blind Flanges

A350 Grade LF2 Spectacle Blind Flanges

SA350 LF2 Cl 1 Reducing Flange

SA350 LF2 Cl 1 Reducing Flange

A350 LF2 Carbon Steel Puddle Flanges

A350 LF2 Carbon Steel Puddle Flanges








Material

Types

Top 12 Advantages to Choose Shikhar Steel

Top 12 Advantages to Choose Shikhar Steel

  • NACE Certified Metal Forging Company in India Having Factory of 5,850 Square Feet in Mumbai.

  • Since 2014, PED Approved Fittings Manufacturer as per ANSI B16.9.

  • Indian Oil Approved High Temperature Pipe Fittings Supplier in UAE, Russia, Qatar, Brazil, Oman and Spain.

  • Custom Size Weld Fittings Comes with MTC 10204 Type 3.1/3.2 Suitable for Chemical and Marine Environments.

  • Over 250 Traders and Fabricators in Middle East and European Countries Import Prime Quality BLRF, SORF, WNRF and SWRF Flange Because Our Material is Accepted in ADNOC and Saudi Armco.

  • Stockholder of Ferrous and Non Ferrous Metals As Per ASTM, ASME, DIN, EN, API, JIS and BS Standard and With NDT Testing.

  • Supplying Large Diameter Elbow, Tee and Reducer to Wholesalers and Stockists in Al Jubail, Dubai, Seoul and Johannesburg at Resale Price.

  • Also Keep Custom Specification and Sizes Ex Stock With Stockholders in Bahrain, Belgium and Europe for Urgent Requirements Replacement Situations.

  • Importers in South Africa and West Africa of Premier Nickel Alloy Forging in Various Forms like Fittings & Flanges, Pipe & Tube, Plate & Sheet, Fasteners for Petrochemical and Oil Refineries.

  • Since 12+ Years, Shikhar Steel Rank in Top 4 Exporter of Stainless Steel Forgings at Competitive Price, Compare Price in India, UK, China and Germany.

  • Ask for Free Sample and Price list of High Quality CNC Components.

  • Contact Now If You Need Piping Accessories in Singapore, South Korea, Japan, Taiwan and Kenya.

whatsapp chat