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Carbon Steel Flanges Manufacturer India

View Carbon Steel Pipe Flange Price List, Flange ANSI B16.5 Class 150

Navstar Steel is one of the leading Carbon Steel Flanges manufacturers India and we produce flanges in different types and material grades. The carbon steel flanges have carbon, manganese, phosphorus, sulfur, silicon, copper, nickel, chromium, molybdenum and vanadium depending on the material grade. The Carbon Steel Pipe Flange Price List varies according to the material grade as well.

Reliable Manufacturer of Carbon Steel Blind Flange, CS Lap Joint Flange, View Carbon Steel Weld Neck Flange Dimensions

The carbon steels have different dimensions and strengths. The tensile strength is in the range of 485MPa minimum tensile strength and 250MPa minimum yield strength. The Flange ANSI B16.5 Class 150 is a medium pressure class of the B16.5 standard flanges. The materials used for the flanges range and the pressure classes range based on the nominal bore sizes and the wall thicknesses.


The nominal bore sizes range from ½ inches to 48 inches and the classes range such as Carbon Steel 150# Flange Rating with different pressure ratings. There are different types of flanges that are used for different purposes. The Carbon Steel Blind Flange is used to terminate a pipe connection permanently or temporarily. The permanent connections are made with welding and the temporary ones are done with bolts and nuts. The CS Lap Joint Flange is a special type that it has a lap joint on it. The carbon steel flanges are tough and have high wear and tear resistance. Please contact us for further information on the Carbon Steel Weld Neck Flange Dimensions, prices and further information.

Carbon Steel Pipe Flange Specification List

Specifications ASTM A105 / ASME SA105, A105N
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.
Size 1/2″ to 48″
Class / Pressure 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flanges Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Check DN15-1200 3000lbs Forged BS 4504 Carbon Steel Forged Flange, ANSI B16.48 Carbon Steel Threaded Flange, view Carbon Steel 150# Flanges Rating

Pressure classes of Flange ANSI B16.5 Class 150

pressure rating in psig for common CS ASME flanges ( A105 / A350 LF2 / A350 LF3 / A350 LF6)
Temperature (F°) 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 285 740 985 1480 2220 3705 6170
200 260 680 905 1360 2035 3395 5655
300 230 655 870 1310 1965 3270 5450
400 200 635 845 1265 1900 3170 5280
500 170 605 805 1205 1810 3015 5025
600 140 570 755 1135 1705 2840 4730
650 125 550 730 1100 1650 2745 4575
700 110 530 710 1060 1590 2655 4425
750 95 505 675 1015 1520 2535 4230
800 80 410 550 825 1235 2055 3430
850 65 320 425 640 955 1595 2655
900 50 230 305 460 690 1150 1915
950 35 135 185 275 410 685 1145
1000 20 85 115 170 255 430 715

Carbon Steel 150# Flange Dimension Table

Pipe Size 150 # 300 # 600 # 900 # 1500 # 2500 #
WN SO BLD WN SO BLD WN SO BLD WN SO BLD WN SO BLD WN SO BLD
1/2" 2 1 1 2 1 1 2 2 2 SEE 1500 # WEIGHTS 5 4 4 7 7 7
3/4" 2 2 2 3 3 3 4 3 3 SEE 1500 # WEIGHTS 6 5 6 8 8 8
1" 3 2 2 4 3 3 4 4 4 SEE 1500 # WEIGHTS 9 8 8 12 11 11
1 1/2" 4 3 3 7 6 6 8 7 8 SEE 1500 # WEIGHTS 13 12 13 25 22 23
2" 6 5 5 9 7 8 12 9 10 SEE 1500 # WEIGHTS 25 25 25 42 37 39
2 1/2" 8 7 7 12 10 12 18 13 15 SEE 1500 # WEIGHTS 36 36 35 52 55 56
3" 10 8 9 15 13 16 23 16 20 31 26 29 48 48 48 94 83 86
4" 15 13 17 25 22 27 42 37 41 53 53 54 73 73 73 145 125 130
5" 19 15 20 32 28 35 68 63 68 86 83 87 130 130 140 245 210 225
6" 24 19 26 42 39 50 81 80 86 110 110 115 165 165 160 380 325 345
8" 39 30 45 67 58 81 120 115 140 175 170 200 275 260 300 580 485 530
10" 52 43 70 91 81 124 190 170 230 260 245 290 455 435 510 1075 930 1025
12" 80 64 110 140 115 185 225 200 295 325 325 415 690 580 690 1525 1100 1300
14" 110 90 140 180 165 250 280 230 355 400 400 520 940 NA 975 NA NA NA
16" 140 98 180 250 190 295 390 330 495 495 425 600 1250 NA 1300 NA NA NA
18" 150 130 220 320 250 395 475 400 630 680 600 850 1625 NA 1750 NA NA NA
20" 180 165 285 400 315 505 590 510 810 830 730 1075 2050 NA 2225 NA NA NA
22" 225 185 355 465 370 640 720 590 1000 NA NA NA NA NA NA NA NA NA
24" 260 220 430 580 475 790 830 730 1250 1500 1400 2025 3325 NA 3625 NA NA NA
Conversion Data
• 1 inch = 25.44 mm • 1 mm = 0.03937 inches • 1 lb/ft^2 = 47.88 Pa • 1 psi = 6.8948 Pa • x°F = (5/9)(x-32)°C
• 1 pound = 0.45359 Kg • 1 Kg = 2.20462 pounds • 1 Pa = 0.020885 lb/ft^2 • 1 Pa = 0.00014504 psi • x°C = (9/5)x + 32°F

Carbon Steel Blind Flange Physical Composition

Density (lb / cu. in.) 0.284
Specific Gravity 7.9
Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) 0.107
Melting Point (Deg F) 2740
Thermal Conductivity 360
Mean Coeff Thermal Expansion 6.7
Modulus of Elasticity Tension 30
Modulus of Elasticity Torsion 11

CS Lap Joint Flange HSN Code

73072100 Flanges 601

Most Commonly Used Carbon Steel Weld Neck Flange Types

150# astm a105 ansi b16.5 carbon steel rf plate flat flanges

150# astm a105 ansi b16.5 carbon steel rf plate flat flanges

ANSI B16.5 150# SORF SLIP ON Raised Face 24 inch A105 Carbon Steel Flanges

ANSI B16.5 150# SORF SLIP ON Raised Face 24" A105 Carbon Steel Flanges

Galvanized carbon pipe flanges

Galvanized carbon pipe flanges

Carbon Flanges A350 LF2 6'' x 4'' 150# STD RF Nipo Flanges

Carbon Flanges A350 LF2 6'' x 4'' 150# STD RF Nipo Flanges

ASME b16.48 carbon steel blind flanges

ASME b16.48 carbon steel blind flanges

2Inch so rf class 150 flanges Astm a105 carbon steel slip on flange

2Inch so rf class 150 flanges Astm a105 carbon steel slip on flanges

Forging Carbon Steel Flanges Slip on So Flanges

Forging Carbon Steel Flanges Slip on So Flanges

10'' x 2'' CL300 STD RF Carbon Steel Flanges

10'' x 2'' CL300 STD RF Carbon Steel Flanges

class 150 3Inch so rf flanges Astm a105 carbon steel slip on flange

class 150 3Inch so rf flanges Astm a105 carbon steel slip on flanges

CS WNRF FLANGE CL:150 1.5 inch SCH40 PN 16 Steel flanges

CS WNRF FLANGES CL:150 1.5" SCH40 PN 16 Steel flanges

A105 6in RF Class 600 SCH 40 WN carbon steel flanges

A105 6in RF Class 600 SCH 40 WN carbon steel flanges

carbon steel din standard flange pn10 sch80 flanges

carbon steel din standard flanges pn10 sch80 flanges

ANSI B16.5 Carbon Steel Spectacle Blind Flanges, Carbon Steel Orifice Flanges, Check CS Industrial Flanges Chemical Properties

Chemical Composition of BS 4504 Carbon Steel Forged Flange

Elements Composition, %
Carbon [C] ≤0.35
Manganese [Mn] 0.60-1.05
Phosphorus [P] ≤0.35
Sulfur [S] ≤0.40
Silicon [Si] 0.10-0.35
Copper [Cu] ≤0.40
Nickel [Ni] ≤0.40
Chromium [Cr] ≤0.30
Molybdenum [Mo] ≤0.12
Vanadium [V] ≤0.08

Mechanical Properties of ANSI B16.48 CS Threaded Flange

Tensile Strength min. Yield Strength min. Elongation min. Reduction of Area, min. Hardness
MPa ksi MPa ksi % % HBW
485 70 250 36 22 30 137-187
Check Forged Carbon Steel Socket Weld Flange sizes0, CS Flange Weight Chart, Supplier of Carbon Steel Plate Flange in India

Carbon Steel Plate Flange Weight

Standard Class Diameter Bolt Circle Diameter Number of Bolts Bolt Size Diameter of Bolt Hole
AS4087 PN14 95 67 4 M12 14
AS 2129 Flanges Table C 95 67 4 13 14
Table D 95 67 4 13 14
Table E 95 67 4 13 14
Table F 95 67 4 13 14
Table H 114 83 4 16 17
Table J 114 83 4 16 17
ANSI B16.5 ANSI 150 89 60 4 13 16
ANSI 300 95 67 4 13 16
ANSI 600 95 67 4 13 16
ANSI 900 121 83 4 19 22
ANSI 1500 121 83 4 19 22
ISO 7005 (DIN) Flanges PN6 80 55 4 M10 11
PN10 95 65 4 M12 14
PN16 95 65 4 M12 14
PN20 90 60.5 4 M14 16
PN25 95 65 4 M12 14
PN40 95 65 4 M12 14

ANSI B16.5 Carbon Steel Spectacle Blind Flange Price

Carbon Steel Flanges Price Per Piece in India CS Blind Flanges Price in INR
carbon steel pipe flanges $0.80-$1.50/ Piece
CS Flanges A350 LF2 6'' x 4'' 150# STD RF Nipo Flanges $24.22-$29.99/ Piece
ASME b16.48 carbon steel blind flanges $2.50-$4.00/ Kilogram
Carbon Steel Flanges Slip on Flanges $5.00-$50.00/ Piece