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Carbon Steel Flanges

Carbon Steel Flanges

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    Reliable Supplier of Carbon Steel Blind Flange, Carbon Steel Flanges Manufacturer, Carbon Steel Flanges Suppliers, CS Lap Joint Flange, View Carbon Steel Weld Neck Flange Dimensions.

    Solitaire Steel is a trusted manufacturer and supplier of carbon steel flanges, valued for their corrosion resistance, durability, and high-quality finish. These flanges are available in various types to meet diverse application requirements. A105 forged carbon steel is the most commonly used material grade, with sizes ranging from 1/2” to 24” under ASME B16.5, 26” to 60” under ASME B16.47, and 26” to 96” under B16.1 standards. With a temperature range up to 1,000°F and pressure capacities between 20 and 6,170 psi, carbon steel flanges are an economical and versatile choice for industrial applications.

    Carbon steel, an alloy primarily composed of iron and up to 2.1% carbon by weight, is widely used due to its strength and durability. Unlike stainless steel, carbon steel contains minimal amounts of elements like chromium and nickel. A105 carbon steel has a maximum allowable carbon content of 0.35%, and its strength can be enhanced through heat treatments such as quenching, tempering, and normalizing. While these processes improve hardness and strength, they may reduce ductility, making the steel more challenging to shape and weld. However, its reliability in demanding applications often outweighs these challenges.

    Carbon steel flanges have minimal trace elements like molybdenum, nickel, chromium, titanium, or vanadium, making them a cost-effective solution for various industries.

    Carbon Steel Flange Material Specification

    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)

    ASTM A105 Flange Pressure Rating

    Temperature (F°) 150# 300# 400# 600# 900# 1500# 2500#
    < 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
    Hydrostatic Test Pressure (psig) 450 1125 1500 2225 3350 5575 9275

    Chemical Composition of ASTM A105

    Element Composition,%
    Carbon (C) 0.35max
    Manganese (Mn) 0.60–1.05
    Phosphorus (P) 0.035max
    Sulfur (S) 0.040max
    Silicon (Si) 0.10–0.35
    Copper (Cu) 0.40max
    Nickel (Ni) 0.40max
    Chromium (Cr) 0.30max
    Molybdenum (Mo) 0.12max
    Vanadium (V) 0.08max

    ASTM A105 Mechanical Properties

    Mechanical Properties Requirements
    Tensile strength,min,psi [MPa] 70000 [485]
    Yield strength,min,psi [MPa] 36000 [250]
    Elongation, min, % 30
    Reductionofarea,min,% 30
    Hardness,HB,max 187

    ASTM A105 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

    Carbon Steel 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

    Supply and Exporter

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    FAQs

    A carbon steel flange is a type of flange made from carbon steel, an alloy of iron and carbon, used to connect pipes and other components in various industrial applications.

    Carbon steel flanges are strong, durable, and cost-effective. They are also widely available, making them a popular choice for many applications.

    Carbon steel flanges should be avoided in applications involving high pressure, high temperatures, or corrosive environments, as they may not withstand these conditions effectively.

    Carbon steel flanges come in several types, including slip-on flanges, threaded flanges, weld neck flanges, and socket weld flanges, each suited to different applications and connection methods.

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