• Alloy 20 Fasteners Manufacturer and Alloy 20 Fasteners Suppliers India - Check Alloy 20 Screws, Alloy 20 Bolts Nuts, Alloy 20 Washers Stock For Sale in India
  • Alloy 20 Fasteners

    Alloy 20 Fasteners Nut Bolts & Screws Manufacturers in Mumbai India

    Alloy 20 Fasteners Manufacturer and Alloy 20 Fasteners Suppliers India - Check Alloy 20 Screws, Alloy 20 Bolts Nuts, Alloy 20 Washers Stock For Sale in India

    Alloy 20 Fasteners | Dimensions | Specifications | Alloy 20 Fasteners Fasteners Data | Diameters | Size | Fasteners Weight Calculator | Alloy 20 Fasteners Price in India

    Material
    Specification
    Standards
    Size
    Length

    Alloy 20

     

    IS

    BS

    ASTM

    ASTM B366

    3 mm
    to 
    200 mm

    M02 to M33

    Also known as Carpenter 20 and 20CB-3, Alloy 20 bolts offer users a combination of nickel, chromium, molybdenum, and copper which provides good general corrosion resistance. Alloy 20 bolts are best suited for mid-range corrosion use – better than steel alloys but not at the level of high performance nickel based alloys like Hastelloy C276. Alloy 20 is a nickel alloy that was specifically designed to withstand the harsh environment of hot sulfuric acid but also performs well in a variety of other acids. Alloy 20 bolts are an ideal choice when you don’t need the corrosion resistance power and price-tag of high performance nickel alloys like Hastelloy C276; but you need something that will give you more protection than 316 stainless steel or even a Super Duplex 2507 stainless steel.

    Corrosion Resistance 
    Alloy 20 bolts provide good performance in hot sulfuric acid, specifically they offer good resistance to stress-corrosion cracking in boiling sulfuric acid at specific range of 20% to 40% concentration, as well as general sulfuric acid resistance. Alloy 20 offers solid acid protection and will perform better than Duplex or even Monel, but for high temperature and high concentration acids, you may need to look to Inconel or Hastelloy fasteners. In addition, Alloy 20 bolts also show useful resistance to phosphoric acid and nitric acid.

    Key Corrosion Resistant Features:

    • Good sulfuric acid protection at 20% - 40%
    • Decent stress corrosion cracking, pitting and crevice corrosion resistance in chloride
    • Resonable general corrosion protection
    • Good intergranular corrosion resistance in the as-welded condition

    Mechanical Properties
    •  Ultimate tensile strength: 80 ksi
    •  Yield strength: 35 ksi
    •  Density: 0.292 lb/in.3
    •  Electrical Resistivity (RT) 651 ohm-cir mil/ft
    •  Elongation: 30%

    Temperature
    In addition to their corrosion resistance, Alloy 20 bolts also perform well at moderately high temperatures, with the ability to maintain their mechanical strength up to 1000°F.

    Welding
    Alloy 20 bolts are stabilized with Columbium to minimize carbide precipitation during welding. In addition it offers intergranular corrosion resistance in the as-welded condition.

    Applications
    •  Power plants rely on alloy 20 bolts for flue-gas desulfurization
    •  Alloy 20 bolts are used to connect heat exchangers, mixing tanks, metal cleaning equipment, pickling tanks and racks, and piping in mid-range corrosive chemcial processing environments.
    •  Alloy 20 bolts help solve corrosion issues in food and dye production.
    •  Manufacturers of plastics and synthetic rubber also utilize alloy 20 fasteners.

    Alloy 20 Chemistry & Specifications

    Alloy 20 Specifications: UNS N08020, ASME SA240, , ASME SB366, ASME SB462, ASME SB463, ASME SB464,  ASME SB473, ASME SB729, ASTM A240, ASTM B366, ASTM B463, ASTM B464, ASTM B473, ASTM B729, ASTM BB462, ANSI/ASTM A555-79, EN 2.4660, , Werkstoff 2.4660, CN7M, DIN 2.4660

    **All measurements in millimeters**

    Hex Bolt Dimension

    NOMINAL SIZE (D) BODY DIAMETER HEAD THICKNEASTM ACROASTM THE FLATS ACROASTM CORNERS
    D (MAX) D (MIN) H (MAX) H (MIN) F (MAX) F (MIN) C (MAX) C (MIN)
    m10 10.00 9.78 6.63 6.17 17.00 15.73 18.48 17.77
    m12 12.00 11.73 7.76 4.24 19.00 17.73 20.78 20.03
    m14 14.00 13.73 9.09 8.51 22.00 20.67 24.25 23.35
    m16 16.00 15.73 10.32 9.68 24.00 23.67 27.71 26.75
    m20 20.00 19.67 12.88 12.12 30.00 29.16 34.64 32.95
    m24 24.00 23.67 15.44 14.56 36.00 35.00 41.57 39.55
    m30 30.00 29.67 19.48 17.92 46.00 45.00 53.12 50.85
    m36 36.00 35.61 23.38 21.63 55.00 53.80 63.51 60.79
    m42 42.00 41.38 26.97 25.03 65.00 62.90 75.06 71.71
    m48 48.00 47.38 31.07 28.93 75.00 72.60 86.60 82.76
    m56 56.00 55.26 36.2 33.80 85.00 82.20 98.15 93.71
    m64 64.00 63.26 41.32 38.68 95.00 91.80 109.70 104.65
    m72 72.00 71.26 46.45 43.55 105.00 101.40 121.24 115.60
    m80 80.00 79.26 51.58 48.42 115.00 111.00 132.72 126.54
    m90 90.00 89.13 57.74 54.26 130.00 125.50 150.11 143.07
    m100 90.00 99.13 63.9 60.10 145.00 140.00 167.43 159.60
    Torque Specifications
    Bolt Size
    Inches or #
    Threads
    Per Inch
    Standard Dry Torque in Inch-Pounds
    #2 56 2.5 2.6
    64 3.0 3.2
    #3 48 3.9 4.0
    56 4.4 4.6
    #4 40 5.2 5.5
    48 6.6 6.9
    #5 40 7.7 8.1
    44 9.4 9.8
    #6 32 9.6 10.1
    40 12.1 12.7
    #8 32 19.8 20.7
    36 22.0 23.0
    #10 24 22.8 23.8
    32 31.7 33.1
    Bolt Size
    Inches or #
    Threads
    Per Inch
    Standard Dry Torque in Inch-Pounds
    1/4 20 75.2 78.8
    28 94.0 99.0
    5/16 18 132 138
    24 142 147
    3/8 16 236 247
    24 259 271
    7/16 14 376 393
    20 400 418
    1/2 13 517 542
    20 541 565
    Bolt Size
    Inches or #
    Threads
    Per Inch
    Standard Dry Torque in Inch-Pounds
    9/16 12 682 713
    18 752 787
    5/8 11 1110 1160
    18 1244 1301
    3/4 10 1530 1582
    16 1490 1558
    7/8 9 2328 2430
    14 2318 2420
    1 8 3440 3595
    14 3110 3250
    Bolt Size
    Inches or #
    Threads
    Per Inch
    Standard Dry Torque in Foot-Pounds
    1 1/8 7 413 432
    12 390 408
    1 1/4 7 523 546
    12 480 504
    1 1/2 6 888 930
    12 703 732

    **All measurements in millimeters**

    Nuts Dimensions

    Nominal Size or Basic Major Thread Diameter F G H
    Width
    Across Flats
    Width
    Across Corners
    Thickness
    Basic Max Min Max Min Basic Max Min
    1/4 .2500 7/16 .438 .428 .505 .488 7/32 .226 .212
    5/16 .3125 1/2 .500 .489 .577 .557 17/64 .273 .258
    3/8 .3750 9/16 .562 .551 .650 .628 21/64 .337 .479
    7/16 .4375 11/16 .688 .675 .794 .768 3/8 .385 .365
    1/2 .5000 3/4 .750 .736 .866 .840 7/16 .448 .427
    9/16 .5625 7/8 .875 .861 1.010 .982 31/64 .496 .473
    5/8 .6250 15/16 .938 .922 1.083 1.051 35/64 .559 .535
    3/4 .7500 1-1/8 1.125 1.088 1.299 1.240 41/64 .665 .617
    7/8 .8750 1-5/16 1.312 1.269 1.516 1.447 3/4 .776 .724
    1 1.0000 1-1/2 1.500 1.450 1.732 1.653 55/64 .887 .831
    1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 31/32 .999 .939
    1-3/8 1.3750 2-1/16 2.062 1.994 2.382 2.273 1-11/64 1.206 1.138
    1-1/2 1.500 2-1/4 2.250 2.175 2.598 2.480 1-9/32 1.ASTM A194 GR. 8 1.245
    1-5/8 1.6250 2-7/16 2.438 2.356 2.815 2.686 1-25/64 1.429 1.353
    1-3/4 1.7500 2-5/8 2.625 2.538 3.031 2.893 1-1/2 1.540 1.460
    2 2.0000 3 3.000 2.900 3.464 3.306 1-23/32 1.763 1.675
    2-1/4 2.2500 3-3/8 3.375 3.263 3.897 3.719 1-15/16 1.986 1.890
    2-1/2 2.5000 3-3/4 3.750 3.625 4.330 4.133 2-5/32 2.209 2.105
    2-3/4 2.7500 4-1/8 4.125 3.988 4.763 4.546 2-3/8 2.431 2.319

     

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