M 1008

2012 original text Table 1 heat analysis mass fraction wt%; The applicability and deviations of product analysis must be separately confirmed according to 4.3 and Table 5. Grades and product forms are retained as listed in this standard; suitability for cold heading is not automatically guaranteed. Note G: Unless prohibited by the purchaser, Mn may exceed 0.60% up to 0.75%; for every absolute 0.05% increase in Mn, reduce both C limits by an absolute 0.01%.; This option uses C+0.2Mn linked verification; Mn cannot be relaxed alone. M grades shall not be merged with non-M grades.

ASTM A29/A29M-2023 Table 1 heat analysis mass fraction wt%; 4.3.1 Commercial quality M series are usually not rejected based on product analysis, unless there is an obvious use of the wrong heat; Table 5 is not applied by default as the acceptance tolerance for the M series. When 4.1.1 is ordered by a grade in this table, the corresponding heat-analysis limits must be met; Other ordered compositions require separate agreement under 4.1.2 and Table 3/4 and are not merged into this table. General requirements for hot-worked bars; chemistry alone does not establish cold-heading suitability, supply or mechanical properties. Table 1 Note G: Unless prohibited by the purchaser, Mn may be increased to 0.75%; Above 0.60%, for every absolute 0.05% increase in Mn, reduce both C limits by an absolute 0.01%; check the coupled relationship C+0.2Mn.; M identity shall not be merged with ordinary grades.