ⓐ Elements not included in this table may not be added intentionally to the steel without the agreement of the purchaser, except those intended for finishing the heat. By agreement at the time of ordering, the grades can contain additions (commonly termed microalloying additions) of Cr and V. The content of Cr is up to 0,30 % and the content of V is 0,05 % to 0,10 %.
ⓑ Non - alloy quality steel for general purposes shall comply with unalloyed quality steel in ISO 4948 - 2.
ⓒ For steel grades C26D to C92D, the carbon range may be enlarged by lowering the minimum by 0,01 % and by increasing the maximum by 0,01%, by agreement between the supplier and purchaser.
ⓓ For wire rod intended for galvanization, the required lower limit of silicon content should be specified at the time of ordering. By agreement at the time of ordering, the maximum silicon level for grades C4D to C20D may be further restricted.
ⓔ For grades from C15D to C92D, a different range from the one indicated in this table, but of the same amplitude, can be agreed at the time of ordering, with a maximum not exceeding 1,20 % and a minimum not lower than 0,30 %.
ⓕ A maximum copper content of 0,20 % may be agreed at the time of ordering. For steel grades C48D to C92D, Cu + Sn shall be ≤0,25 %.
ⓖ By agreement at the time of ordering, the value for aluminium can be fixed at 0,01 % to 0,06 %. In such cases, the value of silicon can be fixed at ≤0,10 % on request.