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  1. pavanbhav

    Minimum Hardness according to NACE and API 6A

    The minimum hardness correlates to the minimum required tensile strength for your part. For example, an API 75k material designation has a 95ksi tensile requirement. So your minimum hardness would be about 197 BHN and you max would be aboud 235 BHN (= 250 HV or 22 HRc). API doesn't get into...
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