astm a350 lf2 pdf

ASTM A350 LF2 Flanges

Carbon Steel A350 LF2 Flanges Dimensions Chart And Low Temperature Carbon Steel Flange Price List In India.

The standard ASTM A350 specification consists of both carbon and low-alloy steel forged and ring-rolled flanges. The ASTM A350 LF2 Flanges are primarily used in low-temperature services, and it requires notch toughness testing. Our Low Temperature Carbon Steel Flanges are widely used in various industries, like in cold weather or below the sea level projects. We specialize in manufacturing different flanges like LTCS A350 LF2 Slip On Flange with a yield strength of 36ksi and is normalized for gaining a good grain structure. They are used for intensive applications like in light and heavy chemical manufacturing factories.

We are one of the top producers of Low Temperature Carbon Steel A350 Lf2 Blind Flanges used at the end of a pipe line to stop the flow. These are used for easy maintenance, inspections, and removal of a section of a piping system. We produce an A350 Gr Lf2 Class 1 Weld Neck Flange that has moderate strength and impact toughness. The A350 Gr Lf2 grade is widely used in the manufacture of flanges and fittings. These are used in places where corrosion is not an issue, like in cold temperature applications. We have a huge stock of SA350 Lf2 Socket Weld Flanges made of carbon steel, and its dimensions range according to standards. Clients can get all types of Carbon Steel A350 LF2 Flanges with us, so contact us today with the requirements.


ASTM A350 LF2 Flanges
ASTM A350 LF2 Flanges

ASTM A350 LF2 Flanges

LTCS Flanges
LTCS Flanges

LTCS Flanges

A350 LF2 CL1 Flanges
A350 LF2 CL1 Flanges

A350 LF2 CL1 Flanges

Carbon Steel A350 LF2 Flanges
 Carbon Steel A350 LF2 Flanges

Carbon Steel A350 LF2 Flanges

Low Temperature Carbon Steel Flange
Low Temperature Carbon Steel Flange

Low Temperature Carbon Steel Flange

SA350 LF2 CL1 Slip On Flange
 SA350 LF2 CL1 Slip On Flange

SA350 LF2 CL1 Slip On Flange









ASTM A350 LF2 CL1 Specification

Specification Chart Of : ASTM A350 LF2 Flanges
Flanges Bore Diameter NPS ≤ 10
IBR Approved Manufacturer Of This Standards API7S-43, API605, BS4504, EN1092, UNI, EN-1092, ANSI/ASME B16.5, API7S-15, IS 2062, ISO70051, API, ISO, MSS S44, ASME B16.48, AWWA C207, ASME B16.36, DIN, BS1560-3.1, B16.47 Series A & B.
Pressure Chart 150LBS To 2500 LBS
Face Type Of Flanges Lap-Joint Face, FF, Large Tongue & Groove And Small Tongue Groove, Raised Face, RTJ, Large Male-Female And Small Male-Female.
Metal Forging Techniques
  • Forged/ Heat Treated/ Machined
Flanges Size Chart 1/2 Inches To 48 Inches
Different Type Of Pipe Flanges Forged / Plate/ Threaded
Most Selling Type Socket-Weld, Lap Joint, Threaded, Blind, Slip-On, Weld Neck
Industrial Use Of Flanges Waterworks Systems
Nuclear Power Application
Oil And Gas Industry
Municipal Pipe Systems
Power Plants Industry
Food Processing And Manufacturing
Fossil Fuel Power Plants
High Degree Temperature Above 200° Celsius (400°F) For 150 Class Or Above 400° Celsius (750°F)
Low Degree Temperature Above -29 ° Celsius (−20°F)
Check Our Global Sales Network London, Al Quezon Mumbai, Noida, Kolkata, Jamshedpur, Dhaka, Ajman, Sydney, Nashik, Lumpur, Alam, Indore, Dubai, Tau, Jaipur, New Gurgaon, Milan, Santiago, Agra, Ambernath, Raipur, Jubail, Guwahati, Batam, Amsterdam, Chi Bhopal, Hanoi, Calgary, Virar, Singapore, Hyderabad, Chicago, Abu Jakarta, Oyama, Paris, Navi Secunderabad, Istanbul, Coimbatore, Chandigarh, Hangzhou, Faridabad, Puchong, Tiruchirappalli, Vung Visakhapatnam, Alexandria, Bhubaneswar, Surabaya, Seoul, Shanghai, Riyadh, Baku, Vasai Nagpur, Mysuru, Ashburn, Zhengzhou, Perth, Jamnagar, Sao Jeddah, Melbourne, Kota, Ankleshwar, Hazira, Minh Dallas, Sharjah, Vadodara, Paulo, Surat, Manama, Panipat, Delhi, Khobar, Busan, Lucknow, Kalyan, Beijing, Pune, Karachi, Bangkok, Delhi, Pimpri-Chinchwad, Shah Thane, Mumbai, Dammam, Cairo, Tehran, Bengaluru, Houston, Ghaziabad, Ho Kuala Al Dhabi, Madrid, Doha, Dombivli, City, Ludhiana, Rajkot, Ahmedabad, Brisbane, Bahru, Lagos, Kochi, Vapi, Bogota, Patna, Chennai, Mexico City, City, Johor.
JIS Standards 5K, 10K, 40K, 16K 20K 30K, 63K
Popular Materials Making Flange Duplex Steel & Super Duplex Steel, Cast Iron, Inconel, Copper Nickel, Alloy Steel, Mild Steel, Hastelloy, Stainless Steel, Wrought Iron, Carbon Steel.
Thickness Tolerance NPS ≤ 18

A350 LF2 Flange Price

Size And Class Price In INR (Per Piece)
ASTM A350 LF2 Carbon Steel Slip On Flange
2 X 150# 300.00
3 X 150# 450.00
4 X 150# 690.00
6 X 150# 950.00
ASTM A350 LF2 Carbon Steel Socket Weld Flange
3/4" X 150# X SCH XS 180.00
1” X 150# X SCH XS 230.00
1-1/2” X 150# X SCH XS 330.00
2 X 150# X SCH XS 350.00
ASTM A350 LF2 Carbon Steel Weld Neck Flange
2 X 150# X SCH STD 600.00
3 X 150# X SCH STD 900.00
4 X 150# X SCH STD 1050.00
6 X 150# X SCH STD 1700.00
8 X 150# X SCH STD 2600.00
ASTM A350 LF2 Carbon Steel Blind Flange
3/4 X 150# 190.00
1 X 150# 200.00
1-1/2 X 150# 320.00
6 X 150# 1400.00
6 X 300# 2000.00
8 X 300# 3400.00

Rajendra Piping & Fittings ASTM A350 LF2 Flanges Manufacturer in India. For final Low Temperature Carbon Steel Flange Price List Please Call on +91(22) – 6743 8321 or drop an Email to info@rpfindia.com.


Check A350 LF2 CL1 Slip On Flange Thickness Calculation For Pressure Vessel And One of Largest LTCS Flanges Manufacturer In India.


Low Temperature Carbon Steel Flange Dimensions

Low Temperature Carbon Steel Flange Dimensions


Normal Pipe Size (NPS) Outside Daimeter (O.D.) Of Flange Thickness Of Flanges Diameter of Raised Face Hub at Base Diameter Lengtd Tdru Hub Bore And Diameter Hub at Bevel Diameter Radius of Fillet Socket Deptd
Weld Neck (WN) SORF (Slip-On) NPT (Threaded) SWRF (Socket) Loose (Lap Joint) SORF (Slip-on) SWRF (Socket) Loose (Lap Joint)
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 18.20 18.00 1/2 1-15/16
20 27-1/2 1-11/16 23 22 5-11/16 2-7/8 4-1/16 20.20 20.25 20.00 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

ASTM A350 LF2 Flanges Weight Chart

NPS (Nominal Pipe Size) SORF (Slip On) NPT (Threaded) SWRF (Socket Weld) Loose (Lap Joint) BLRF (Blind) WRNR (Weld Neck)
½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
3 3 3 3 3 3
3 3 3 3 4 4
2 5 5 5 5 5 6
8 8 8 8 7 10
3 9 9 9 9 9 11.5
11 12 11 11 13 12
4 13 13 13 13 17 16.5
5 15 15 15 15 20 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
18 130 130 130 160 220 165
20 165 165 165 195 285 197
22 185 185 185 245 355 225
24 220 220 220 275 430 268

A350 LF2 Carbon Steel Blind Flange Chemical Composition/ Temperature Range/ Specification List And High-Quality SA350 LF2 Flanges Manufacturer in India.


A350 Lf2 Pressure-temperature Rating

ASTM A350 LF2 Flanges Pressure And Temperature Ratings
Temperature °F Class 150 As Per ASME B16.5 Class 300 As Per ASME B16.5 Class 400 As Per ASME B16.5 Class 600 As Per ASME B16.5 Class 900 As Per ASME B16.5 Class 1500 As Per ASME B16.5 Class 2500 As Per ASME B16.5
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 310 410 615 925 1545 2570
1100 20 255 345 515 770 1285 2145
1150 20 200 265 400 595 995 1655
1200 20 155 205 310 465 770 1285
1250 20 115 150 225 340 565 945
1300 20 85 115 170 255 430 715
1350 20 60 80 125 185 310 515
1400 20 50 65 95 145 240 400
1450 15 35 45 70 105 170 285
1500 10 25 35 55 80 135 230

Tolerance Chart Of Carbon Steel A350 Lf2 Flanges

ASTM A350 LF2 FlangesTolerance Table
A O.D. (Outside Diameter)
  • When O.D. (Outside Diameter) is 24" or less: ±1/16" (1.6 millimeter)
  • When O.D. (Outside Diameter) is over 24": ±1/8" (3.2 millimeter)
D Inside Diameter (I.D.)
  • 10" and smaller: ±1/32" (0.8 mm)
  • 12" thru 18": +1/8" (3.2 mm)
  • 20" and larger: -1/16" (1.6 mm)
B Diameter of contact face
  • 1/16" raised face: ±1/32" (0.8 mm)
  • 1/4" RF (Raised Face), T/G (Tongue & Groove), (male & female), (m/f): ±1/64" (0.4 millimeter)
J Diameter of hub at base
  • When hub base is 24" or smaller: ±1/16" (1.6 millimeter)
  • When hub base is over 24": ±1/8" (3.2 millimeter)
H Diameter of hub at point of welding
  • 5" and smaller: +3/32" (2.4 mm), -1/32" (0.8 mm)
  • 6" and larger: +5/32" (4.0 mm), -1/32 (0.8 mm)
P Drilling
  • Circle Bolts: ±1/16" (1.6 mm)
  • Bolts hole spacing: ±1/32" (0.8 mm)
  Eccentricity of bolt circle with respect to facing
  • 2 1/2" and smaller ±1/32" (0.8 mm) maximum
  • 3" and larger ±1/16" (1.6 mm) maximum
C Thickness
  • 18" and smaller: ±1/8" (3.2 mm), -0"
  • 20" and larger: ±3/16" (4.8 mm), -0"
K Length of hub
  • 10" and smaller: ±1/16" (1.6 mm)
  • 12" and larger: ±1/8" (3.2 mm)

Size Chart Of A350 LF2 Cl1 Flanges

Normal Sizes In inchDimensionASTM A350 LF2 Flanges Dimensional Sizes 1/2 inch. to 2 1/2 inch.
Class 125
Class 150
Class 300Class 400Class 600Class 900Class 1500Class 2500
inch.mminch.millimeterinch.mminch.mminch.mminch.mminchmm
1/2A3 1/288.93 3/495.23 3/495.23 3/495.24 3/41214 3/41215 1/4133.4
b7/1611.19/1614.39/1614.39/1614.37/822.27/822.21 3/1630.2
D21 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.9
D12 3/860.32 5/866.72 5/866.72 5/866.73 1/482.63 1/482.63 1/288.9
n44444444444-444
d5/815.95/815.95/815.95/815.97/822.27/822.27/822.2
3/4A3 7/898.44 5/8117.54 5/8117.54 5/8117.55 1/81305 1/81305 1/2139.7
b1/212.75/815.95/815.95/815.9125.4125.41 1/431.8
D21 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.9
D12 3/469.83 1/482.53 1/482.53 1/482.53 1/288.93 1/288.93 3/495.2
n44444444444-444
d5/815.93/4193/4193/4197/822.27/822.27/822.2
1A4 1/41084 7/8123.84 7/8123.84 7/8123.85 7/8149.25 7/8149.26 1/4159
b9/1614.311/1617.511/1617.511/1617.51 1/828.61 1/828.61 3/834.9
D2250.8250.8250.8250.8250.8250.8250.8
D13 1/879.43 1/288.93 1/288.93 1/288.9410241024 1/4108
n44444444444444
d5/815.93/4193/4193/419125.4125.4125.4
1 1/4A4 5/8117.55 1/4133.45 1/4133.45 1/4133.46 1/41596 1/41597 1/4184.2
b5/815.93/41913/1620.613/1620.61 1/828.61 1/828.61 1/238.1
D22 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.5
D13 1/288.93 7/898.43 7/898.43 7/898.44 3/81114 3/81115 1/8130
n44444444444444
d5/815.93/4193/4193/419125.4125.41 1/828.6
1 1/2A51276 1/8155.66 1/8155.66 1/8155.67177.87177.88203
b11/1617.513/1620.67/822.27/822.21 1/431.81 1/431.81 3/444.5
D22 7/873 982 7/8732 7/8732 7/8732 7/8732 7/8732 7/873
D13 7/844 1/21144 1/21144 1/21144 7/81244 7/81245 3/4146
n44444444444444
d5/8. 15.97/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8
2A6152.46 1/2165.16 1/2165.16 1/2165.18 1/2215.98 1/2215.99 1/4234.9
b3/4197/822.2125.4125.41 1/238.11 1/238.1250.8
D23 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.1
D14 3/41215127512751276 1/2165.16 1/2165.16 3/4171
n44888888888888
d3/4193/4193/4193/419125.4125.41 1/828.6
2 1/2A7177.87 1/2190.57 1/2190.57 1/2190.59 5/82449 5/824410 1/2266.7
b7/822.2125.41 1/828.61 1/828.61 5/841.31 5/841.32 1/457.2
D24 1/8104.84 1/8104.84 1/8104.84 1/8104.84 1/81054 1/81054 1/8105
D15 1/2139.75 7/8149.25 7/8149.25 7/8149.27 1/2190.57 1/2190.57 3/4197
n44888888888888
d3/4197/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8

Refer ASTM A350 Gr Lf2 Class 1 Weld Neck Flange Weight Chart According to ASME B16.5 And We Are Manufacturer Of Low Temperature Carbon Steel (LTCS) Socket Weld Flange With Good Quality.

LTCS Flanges Torque Values

Size in Inches Size in Millimeter Imperfections Max. Radial Projection
No Deeper Than the Bottom of the Serrations, millimeter Deeper Than the Bottom of the Serrations, millimeter
1/2 15 3.0 1.5
3/4 20 3.0 1.5
1 25 3.0 1.5
1 1/4 32 3.0 1.5
1 1/2 40 3.0 1.5
2 50 3.0 1.5
2 1/2 65 3.0 1.5
3 80 4.5 1.5
3 1/2 90 6.0 3.0
4 100 6.0 3.0
5 125 6.0 3.0
6 150 6.0 3.0
8 200 8.0 4.5
10 250 8.0 4.5
12 300 8.0 4.5
14 350 8.0 4.5
16 400 10.0 4.5
18 450 12.0 6.0
20 500 12.0 6.0
24 600 12.0 6.0

ASME SA350 LF2 CL1 Slip On Flange Gasket Chart

Normal Pipe Size Gasket I.D. (Inside Daimeter)
Gasket O.D. (Outside Daimeter)
150 LB 300 LB 400 LB 600 LB 900 LB
1/2 0.84 1.875 2.125 2.125 2.125 2.50
3/4 1.06 2.25 2.625 2.625 2.625 2.75
1 1.31 2.625 2.875 2.875 2.875 3.125
1 1/4 1.66 3 3.25 3.25 3.25 3.50
1 1/2 1.91 3.375 3.75 3.75 3.75 3.875
2 2.38 4.125 4.375 4.375 4.375 5.625
2 1/2 2.88 4.875 5.125 5.125 5.125 6.50
3 3.50 5.375 5.875 5.875 5.875 6.625
4 4.50 6.875 7.125 7.00 7.625 8.125
5 5.56 7.75 8.50 8.375 9.50 9.75
6 6.62 8.75 9.875 9.75 10.50 11.375
8 8.62 11 12.125 12.00 12.625 14.125
10 10.75 13.375 14.25 14.125 15.75 17.125
12 12.75 16.125 16.625 16.50 18.00 19.625

A350 LF2 Carbon Steel Blind Flange Thickness

Wall Thickness Of ASTM A350 LF2 Flanges
Normal Pipe Size (NPS) O.D. (Outside Daimeter) Sch 10 Sch 20 Sch 30 STD Wall Outside Daimeter Sch 40 Sch 60 EXT Hvy Outside Daimeter Schedule 80 Schedule 100 Schedule 120 Schedule 140 Schedule 160 XX Hvy
½ 0.84 0.083 ... ... 0.109 0.109 ... 0.147 0.147 ... ... ... 0.188 0.294
¾ 1.05 0.083 ... ... 0.113 0.113 ... 0.154 0.154 ... ... ... 0.219 0.308
1 1.315 0.109 ... ... 0.133 0.133 ... 0.179 0.179 ... ... ... 0.25 0.358
1 ¼ 1.66 0.109 ... ... 0.14 0.14 ... 0.191 0.191 ... ... ... 0.25 0.382
1 ½ 1.9 0.109 ... ... 0.145 0.145 ... 0.2 0.2 ... ... ... 0.281 0.4
2 2.375 0.109 ... ... 0.154 0.154 ... 0.218 0.218 ... ... ... 0.344 0.436
2 ½ 2.875 0.12 ... ... 0.203 0.203 ... 0.276 0.276 ... ... ... 0.375 0.552
3 3.5 0.12 ... ... 0.216 0.216 ... 0.3 0.3 ... ... ... 0.438 0.6
3 ½ 4 0.12 ... ... 0.226 0.226 ... 0.318 0.318 ... ... ... ... 0.636
4 4.5 0.12 ... ... 0.237 0.237 ... 0.337 0.337 ... 0.438 ... 0.531 0.674
5 5.563 0.134 ... ... 0.258 0.258 ... 0.375 0.375 ... 0.5 ... 0.625 0.75
6 6.625 0.134 ... ... 0.28 0.28 ... 0.432 0.432 ... 0.562 ... 0.719 0.864
8 8.625 0.148 0.25 0.277 0.322 0.322 0.406 0.5 0.5 0.594 0.719 0.812 0.906 0.875
10 10.75 0.165 0.25 0.307 0.365 0.365 0.5 0.5 0.594 0.719 0.844 1 1.125 1
12 12.75 0.18 0.25 0.33 0.375 0.406 0.562 0.5 0.688 0.844 1 1.125 1.312 1
14 14 0.25 0.312 0.375 0.375 0.438 0.594 0.5 0.75 0.938 1.094 1.25 1.406 ...
16 16 0.25 0.312 0.375 0.375 0.5 0.656 0.5 0.844 1.031 1.219 1.438 1.594 ...
18 18 0.25 0.312 0.438 0.375 0.562 0.75 0.5 0.938 1.156 1.375 1.562 1.781 ...
20 20 0.25 0.375 0.5 0.375 0.594 0.812 0.5 1.031 1.281 1.5 1.75 1.969 ...
22 22 0.25 ... ... 0.375 ... ... 0.5 ... ... .... .... .... ....
24 24 0.25 0.375 0.562 0.375 0.688 0.969 0.5 1.219 1.531 1.812 2.062 2.344 ....
26 26 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
30 30 0.312 0.5 0.625 0.375 .... .... 0.5 .... .... .... .... .... ....
36 36 0.312 0.5 0.625 0.375 0.75 .... 0.5 .... .... .... .... .... ....
40 40 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
42 42 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..
48 48 …….. …….. …….. 0.375 …….. …….. 0.5 …….. …….. …….. …….. …….. ……..

ASTM A350 Gr Lf2 Weld Neck Flange Bolts Size

150# Flange As Per ANSI B16.5 300# Flange As Per ANSI B16.5 600# Flange As Per ANSI B16.5
Normal Pipe Size # Studs And Bolts Diameter of Studs And Bolts Length Of Studs # Studs And Bolts Diameter of Studs And Bolts Stud Length # Studs And Bolts Diameter of Studs And Bolts Length Of Studs
1/16 RF RTJ 1/16 RF RTJ 1/4 RF RTJ
1/2 4 0.50 2-1/4 4 0.50 2-1/2 3 4 0.50 3 3
3/4 4 0.50 2-1/2 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1 4 0.50 2-1/2 3 4 0.63 3 3-1/2 4 0.63 3-1/2 3-1/2
1-1/4 4 0.50 2-3/4 3-1/4 4 0.63 3-1/4 3-3/4 4 0.63 3-3/4 3-3/4
1-1/2 4 0.50 2-3/4 3-1/4 4 0.75 3-1/2 4 4 0.75 4-1/4 4-1/4
2 4 0.63 3-1/4 3-3/4 8 0.63 3-1/2 4 8 0.63 4-1/4 4-1/4
2-1/2 4 0.63 3-1/2 4 8 0.75 4 4-1/2 8 0.75 4-3/4 4-3/4
3 4 0.63 3-1/2 4 8 0.75 4-1/4 4-3/4 8 0.75 5 5
3-1/2 8 0.63 3-1/2 4 8 0.75 4-1/4 5 8 0.88 5-1/2 5-1/2
4 8 0.63 3-1/2 4 8 0.75 4-1/2 5 8 0.88 5-3/4 5-3/4
5 8 0.75 3-3/4 4-1/4 8 0.75 4-3/4 5-1/4 8 1.00 6-1/2 6-1/2
6 8 0.75 4 4-1/2 12 0.75 4-3/4 5-1/2 12 1.00 6-3/4 6-3/4
8 8 0.75 4-1/4 4-3/4 12 0.88 5-1/2 6 12 1.13 7-1/2 7-3/4
10 12 0.88 4-1/2 5 16 1.00 6-1/4 6-3/4 16 1.25 8-1/2 8-1/2
12 12 0.88 4-3/4 5-1/4 16 1.13 6-3/4 7-1/4 20 1.25 8-3/4 8-3/4
14 12 1.00 5-1/4 5-3/4 20 1.13 7 7-1/2 20 1.38 9-1/4 9-1/4
16 16 1.00 5-1/4 5-3/4 20 1.25 7-1/2 8 20 1.50 10 10
18 16 1.13 5-3/4 6-1/4 24 1.25 7-3/4 8-1/4 20 1.63 10-3/4 10-3/4
20 20 1.13 6-1/4 6-3/4 24 1.25 8 8-3/4 24 1.63 11-1/4 11-1/2
24 20 1.25 6-3/4 7-1/4 24 1.50 9 10 24 1.88 13 13-1/4

 

900# Flange As Per ANSI B16.5 1500# Flange As Per ANSI B16.5 2500# Flange As Per ANSI B16.5
Normal Pipe Size # Studs And Bolts Diameter of Bolts And Studs Stud Length # Studs And Bolts Diameter of Studs And Bolts Length Of Studs # Studs And Bolts Diameter of Studs And Bolts Length Of Studs
1/4 RF RTJ 1/4 RF RTJ 1/4 RF RTJ
1/2 4 0.75 4-1/4 4-1/4 4 0.75 4-1/4 4-1/4 4 0.75 4-3/4 4-3/4
3/4 4 0.75 4-1/2 4-1/2 4 0.75 4-1/2 4-1/2 4 0.75 5 5
1 4 0.88 5 5 4 0.88 5 5 4 0.88 5-1/2 5-1/2
1-1/4 4 0.88 5 5 4 0.88 5 5 4 1.00 6 6
1-1/2 4 1.00 5-1/2 5-1/2 4 1.00 5-1/2 5-1/2 4 1.13 6-3/4 6-3/4
2 8 0.88 5-3/4 5-3/4 8 0.88 5-3/4 5-3/4 8 1.00 7 7
2-1/2 8 1.00 6-1/4 6-1/4 8 1.00 6-1/4 6-1/4 8 1.13 7-3/4 8
3 8 0.88 5-3/4 5-3/4 8 1.13 7 7 8 1.25 8-3/4 9
4 8 1.13 6-3/4 6-3/4 8 1.25 7-3/4 7-3/4 8 1.50 10 10-1/4
5 8 1.25 7-1/2 7-1/2 8 1.50 9-3/4 9-3/4 8 1.75 11-3/4 12-1/4
6 12 1.13 7-1/2 7-3/4 12 1.38 10-1/4 10-1/2 8 2.00 13-1/2 14
8 12 1.38 8-3/4 8-3/4 12 1.63 11-1/2 11-3/4 12 2.00 15 15-1/2
10 16 1.38 9-1/4 9-1/4 12 1.88 13-1/4 13-1/2 12 2.50 19-1/4 20
12 20 1.38 10 10 16 2.00 14-3/4 15-1/4 12 2.75 21-1/4 22
14 20 1.50 10-3/4 11 16 2.25 16 16-3/4
16 20 1.63 11-1/4 11-1/2 16 2.50 17-1/2 18-1/2
18 20 1.88 12-3/4 13-1/4 16 2.75 19-1/2 20-3/4
20 20 2.00 13-3/4 14-1/4 16 3.00 21-1/4 22-1/4
24 20 2.50 17-1/4 18 16 3.50 24-1/4 25-1/2

We Deliver High Quality LTCS A350 Grade LF2 Large Diameter Flange At Low Price If Buying In India And ASTM A350 Lf2 Equivalent Material/ Bolt Chart/ Chemical Composition.

ASTM A350 Lf2 Class 1 Chemical Composition

Chemical Composition Of ASTM A350 LF2 Flanges Mechanical Properties Of LTCS Flanges
C 0.30 Max.(Maximum) TS Min psi (Mpa) 70,000 (485)
Mn 0.60 – 1.35 YS Min psi (Mpa) 36,000 (250)
Si 0.15 – 0.30 EL (2″ Min) 22%
P 0.035 Max.(Maximum) RA Min 30%
S 0.040 Max.(Maximum) Hardness, Bhn Max.(Maximum) 197
Cr 0.30 Max.(Maximum) -50ºF Charpy Min Impact
Ni 0.40 Max.(Maximum) Energy F t/Lb (J):-
Mo 0.12 Max.(Maximum) Set of 3 Specimen* 15 (20)
V 0.08 Max.(Maximum) For One Specimen 12 (16)
Cb 0.02 Max.(Maximum)
Cu 0.04 Max.(Maximum)
Pb 0.02 Max.(Maximum)
Total Residuals = 0.50

SA350 Lf2 Flanges Physical Properties

  • Class 1 HB: after heat treatment

  • Yield Strength: > 250 MPa

  • Hardness HB: < 197

  • Elongation: > 22 %

  • Impact energy KV -50°F [-45°С]: > 16 J

  • Reduction of area: > 30 %

  • Tensile Strength: 485 - 655 MPa


A350 Lf2 Tensile Strength

Key Of Physical Properties Cast
CS (Carbon Steel)
Forged
0.30/0.35 C Maxi. A216-WCB A105
0.25 C Maxi. A216-WCC
LOW TEMPERATURE CARBON STEEL (LTCS)
0.25/0.30 C Maxi. ASME SA352-LCB A350-LF2
0.5 Mo ASME SA352-LC1
2.5 Ni ASME SA352-LC2
3.5 Ni ASME SA352-LC3
C-MN-Si (0.25 Maxi.) A352-LCC ASME SA350-LF3
C-MN-Si-V (1.15~1.50 Mn) ASME SA350-LF6

A350 Lf2 Carbon Equivalent

Group Of Carbon Steel Material Common Name Of LTCS Material Types Of Material UNS Forging Specification Casting Specification Equivalent DIN DIN W. No Application
CS (Carbon Steel) Carbon Stee C-Si K03504 A105 A216-WCB C22.8 DIN 17243 1.0460 General non-corrosive service from -29ºC (-20ºF) to 425ºC (800ºF)
LTCS (Low Temperature Carbon Steel) Low Temperature Carbon Steel C-Mn-Fe K03011 A350-LF2 A352-LCB A352-LCC TSTE 355 DIN 18103 1.0566 General non-corrosive service from -46ºC (-50ºF) to 340ºC (650ºF), LF2 -46ºC ~ 425ºC
LTAS (Low Temperature Alloy Steel) Nickel Steel 3.1/2Ni K32025 A350-LF3 A352-LC3 10Ni14 1.5637 -101ºC (150ºF) to 340ºC (650ºF)

Buy Type Of ASTM A350 LF2 Flanges At Best Price And Fast Delivery

4 Inch, Class 1500, Carbon Steel A350 LF2 Spectacle Blind Flange
4 Inch, Class 1500, Carbon Steel A350 LF2 Spectacle Blind Flanges
DN 100, SCH 40, Raised Face, A350 LF2 Spectacle Pipe Flange
DN 100, SCH 40, Raised Face, A350 LF2 Spectacle Pipe Flanges
 16 Inch, Class 300#, Low Carbon Steel A350 LF2 Spectacle Flange
16 Inch, Class 300#, Low Carbon Steel A350 LF2 Spectacle Flanges
12 Inch, Class 300, A350 Lf2 Carbon Stel Spec Flange
12 Inch, Class 300, A350 Lf2 Carbon Stel Spec Flange
4 Inch, Clas 300, Low Temperature Carbon Steel WN Flange
4 Inch, Clas 300, Low Temperature Carbon Steel WN Flanges
 RF, 4 Inch, Low Temperature Carbon Steel Weld Neck Flange
RF, 4 Inch, Low Temperature Carbon Steel Weld Neck Flanges
18 Inch, SCH 80, Class 150 LB, Low Temperature Carbon Steel WNRF Flange
18 Inch, SCH 80, Class 150 LB, Low Temperature Carbon Steel WNRF Flanges
32 Inch, Class 600#, RF, Low Temperature Carbon Steel Class 2 WN Flange
32 Inch, Class 600#, RF, Low Temperature Carbon Steel Class 2 WN Flanges
8 Inch, Class 150, A350 LF2 CL1 SORF Flange
8 Inch, Class 150, A350 LF2 CL1 SORF Flanges
6 Inch, Class 300, EN 1092-1 Type 11, A350 LF2 CL2 Slip On Flange
6 Inch, Class 300, EN 1092-1 Type 11, A350 LF2 CL2 Slip On Flanges
14 Inch, Sch 80, Class 150 LB, SA350 LF2 CL1 SO Flange
14 Inch, Sch 80, Class 150 LB, SA350 LF2 CL1 SO Flanges
16 Inch, Sch 120, Raised Face, 150LB, ASME SA350 LF2 CL1 Slip-on Flange
16 Inch, Sch 120, Raised Face, 150LB, ASME SA350 LF2 CL1 Slip-on Flanges
2 Inch, LTCS Threaded Flange
2 Inch, LTCS Threaded Flanges
SCH 80, 4 Inch, Class 300, Raised Face Ends, LTCS A350 LF2 Thread Flanges
SCH 80, 4 Inch, Class 300, Raised Face Ends, LTCS A350 LF2 Thread Flanges
6 Inch, 150LB, LTCS A350 Grade LF2 Screw Thread Flanges
6 Inch, 150LB, LTCS A350 Grade LF2 Screw Thread Flanges
12 Inch, Low Temperature Carbon Steel (LTCS) Threaded Flange
12 Inch, Low Temperature Carbon Steel (LTCS) Threaded Flanges


Some Of The Major Locations We Have Supplied ASTM A350 LF2 Flanges:

SCH STD, Class 150, 10 Inch, Alloy Steel Flanges Italy, Iran, Chile, Singapore
PN16, DN80, EN 1092-1, Carbon Steel A350 LF2 Flanges Malaysia, United Arab Emirates (UAE), Norway, Turkey
RF, 6 Inch, 600 LB, Low Temperature Carbon Steel Flange Belgium, Dammam -KSA, Indonesia, Philippines.
SCH 60, Class 300, 22 Inch, LTCS Flange Philippines, Canada, Malaysia, Singapore
RF, 6 Inch, SCH 20, A350 LF2 CL1 Flanges Mexico, Egypt, UK, Spain
6 Inch, Raised Face, BS 3293, SA350 LF2 CL1 Slip On Flange South Africa, Bahrain, Singapore
24 Inch, 900#, RF, BS 3293, A350 LF2 Carbon Steel Blind Flange France, Europe, Thailand, Qatar
RF, SCH 20, 10 Inch, SA350 LF2 Flanges Malaysia, Germany, Czechia, Thailand
RF End, Class 150, 12 Inch, ASTM A350 Gr Lf2 Class 1 Weld Neck Flange China, Colombia, Sweden, Malaysia
Class 2500, 2 Inch, SCH60, A350 Grade LF2 Large Diameter Flange Russia, Dubai, Netherlands, Malaysia
DN 100, RF, PN 50, ANSI B16.5, A350 LF2 Spectacle Pipe Flanges Kuwait, South Africa, Saudi Arabia (KSA), Brazil
BS EN 10204, 600#, RF, 8 Inch, ASME SA 350 GR LF2 Weld Neck Flanges Philippines, Nigeria, Australia, UK
FF (Flate Face), 18 Inch, 1500#, Sa350 Gr Lf2 Forged Flange Netherlands, Russia, Dubai, Malaysia
Class 150, SCH 140S, 10 Inch, Lf2 Cl1 BLRF Flanges Egypt, UK, Mexico, Spain
ASME B16.5, FF, 22 Inch, Low Temperature Carbon Steel (LTCS) Flanges Canada, UK, Poland, Ellington -United States
SCH 180S, 12 Inch, ASTM A350 LF2 RTJ Flanges Egypt, UK, Mexico, Spain