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    System of Measurement
    System of Measurement
    Inch
    Material
    Material
    Iron
    Tolerance Rating
    Tolerance Rating
    Oversized
    Tight
    Hardness Rating
    Hardness Rating
    Medium
    Hard
    Yield Strength
    Yield Strength
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    45,000 psi
    55,000 psi
    Not Rated
    Maximum Hardness After Heat Treatment
    Maximum Hardness
    After Heat Treatment
    Rockwell C50
    Rockwell C60
    Specifications Met
    Specifications Met
    ASTM A247
    ASTM A536
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
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    Hardness
    Hardness
    Rockwell C10
    Rockwell C20
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    Wall Thickness
    Wall Thickness
    1"
    1 1/2"
    Elongation
    Elongation
    6%
    12%
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    100 Products