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ASTM A194 Grade 8mn Nuts | UNS S31651 Specifications
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  • ASTM A194 Grade 8mn Nuts

    • ASTM A194 Grade 8mn Nuts

    316S61, 1.4406, 316LN, S31651, X2CRNIMON17-11-2

    ASTM A194 Grade 8MN Nuts are manufactured from 316 Stainless Steel in accordance with ASTM A194 specification. Torqbolt is a prominent A194 Gr.8MN nut supplier in India.

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    ASTM A194 Grade 8mn Nuts Properties

    ASTM A194 Grade 8mn Nuts Chemical Requirements

    Grade Description
    and
    UNS Designation    		 C Mn P SE Si Cr Ni Mo Ti CbH N Cu Se V Al
    ASTM A194/A194M Grade 8MN (316N) S31651 0.08 2.00 0.045 0.030 1.00 16.0-18.0 10.0-13.0 2.00-3.00 . . . . . . 0.10-0.16 . . . . . . . . . . . .

    ASTM A194 Grade 8mn Nuts Mechanical Requirements

    ASTM A194/A194M Hardness RequirementsA

    Grade and Type Completed Nuts Sample Nut after Treatment
    Brinell Hardness Rockwell Hardness Brinell Hardness, min Rockwell Hardness B Scale, min
    C Scale B Scale
    ASTM A194/A194M Grade 8MN 126 to 300 32 max 60 min ... ...

    ASTM A194 Grade 8 Nuts Proof Load Using Threaded Mandrel (Inch Series)

    Nominal Size, in. Threads per Inch Stress Area in. 2 Proof Load, lbf A
    All Types of Grade 8
    Heavy HexH HexI
    1/4 20 0.0316 2 540 2 380
    5/16 18 0.0524 4 190 3 930
    3/8 16 0.0774 6 200 5 810
    7/16 14 0.1063 8 500 7 970
    1/2 13 0.1419 11 350 10 640
    9/16 12 0.182 14 560 13 650
    5/8 11 0.226 18 080 16 950
    3/4 10 0.334 26 720 25 050
    7/8 9 0.462 36 960 34 650
    1 8 0.606 48 480 45 450
    11/8 8 0.790 63 200 59 250
    11/4 8 1.000 80 000 75 000
    13/8 8 1.233 98 640 92 450
    11/2 8 1.492 119 360 111 900

    ASTM A194 Grade 8 Nuts Proof Load Using Threaded Mandrel (Metric)

    Nominal Size, mm Threads Pitch Stress Area mm 2 Proof Load, kNA
    All Types of Grade 8
    Heavy HexH HexI
    M6 1.0 20.1 11.1 10.4
    M8 1.25 36.6 20.1 18.8
    M10 1.50 58.0 31.9 29.9
    M12 1.75 84.3 46.4 43.4
    M14 2.0 115.0 63.3 59.2
    M16 2.0 157.0 86.4 80.9
    M20 2.5 245.0 134.8 126.2
    M22 2.5 303.0 166.7 156.0
    M24 3.0 353.0 194.2 181.8
    M27 3.0 459.0 252.5 236.4
    M30 3.5 561.0 308.6 288.9
    M36 4.0 817.0 449.4 420.8

    ASTM A194 Grade 8 Nuts Proof Load Testing of Strain Hardened Nuts Using Threaded Mandrel -(Inch)

    Proof Load, kNA
    NominalSize, mm ThreadPitch Stress Area,mm2 All Typesof Grade 8(strain hardened) All Typesof Grade 8(strain hardened)
    Heavy HexC HexB
    1/4 20 0.0316 3 950 3 480
    5/16 18 0.0523 6 550 5 760
    3/8 16 0.0774 9 675 8 510
    7/16 14 0.1063 13 290 11 690
    1/2 13 0.1419 17 740 15 610
    9/16 12 0.182 22 750 20 020
    5/8 11 0.226 28 250 24 860
    3/4 10 0.334 41 750 36 740
    7/8 9 0.462 53 130 46 200
    1 8 0.606 69 690 60 600
    11/8 8 0.790 82 950 75 050
    11/4 8 1.000 105 000 95 000
    13/8 8 1.233 123 300 110 970
    11/2 8 1.492 149 200 134 280

    ASTM A194 Grade 8 Nuts Proof Load Testing of Strain Hardened Nuts Using Threaded Mandrel (Metric)

    Proof Load, kNA
    Nominal Size, mm Thread Pitch Stress Area,mm2 All Types of Grade 8(strain hardened) All Types of Grade 8(strain hardened)
    Heavy HexC HexB
    M6 1.0 20.1 17.3 15.3
    M8 1.25 36.6 31.3 27.8
    M10 1.50 58.0 49.9 44.1
    M12 1.75 84.3 72.5 64.1
    M14 2.0 115.0 98.9 87.4
    M16 2.0 157.0 135.0 119.3
    M20 2.5 245.0 210.9 186.2
    M22 2.5 303.0 240.9 209.0
    M24 3.0 353.0 280.6 243.5
    M27 3.0 459.0 332.7 300.6
    M30 3.5 561.0 406.7 367.5
    M36 4.0 817.0 563.7 506.5

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