①Types A and C may be furnished as vacuum degassed and/or chemically stabilized at the producers option.
② For carbon levels less than or equal to 0.02%, columbium and/or titanium may be used as chemical stabilizing elements in Type A and C at the producers option. In such case, the Table limitations on such elements do not apply. Rather, the limit on columbium shall be 0.1% maximum and the limit on titanium shall be 0.15% maximum.
③Types B describes the most common product previously included in Specification A569/A569M.
④Specify Type B to avoid carbon levels below 0.02%.
⑤When an aluminum deoxidized steel is required for the application. Commercial Steel (CS) may be ordered to a minimum of 0.01% total aluminum.
⑥Where an ellipsis (...) appears in this table, there is no requirement, but the analysis shall be reported.
⑦ When copper steel is not specified, the sum of copper, nickel, chromium, and molybdenum shall not exceed 0.5% on heat analysis. When one or more of these elements is specified, the sum does not apply; in which case, only the individual limits on the remaiming elements will apply.
⑧ Chromium is permitted ,at the producers option, to 0.25% maximum when the carbon is less than or equal to 0.05%. In such case, the limit on the sum of the four elements in Footnote ⑦ does not apply.
