NOTE 1： By agreement between the supplier and purchaser, fine-grained steels may be specified. Such agreement may make reference to the requirement being deemed to be fulfilled if certain criteria (involving the use of Al, Nb or V, either singly or in combination) have been met.
NOTE 2： Elements not included in the 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 steel for special applications shall comply with the non-alloy special steel in ISO 4948-2.
ⓑ For steels C32D2 to C98D2, the carbon range may be enlarged by 0,01 %, either by lowering the minimum or by increasing the maximum, by agreement between the supplier and purchaser.
ⓒ For wire rod intended for galvanizing, the required lower limit of silicon content should be specified at the time of ordering.
ⓓ For the silicon content, a different range from the one indicated in the table may be agreed at the time of ordering.
ⓔ For the manganese content, a different range from the one indicated in the table may be agreed at the time of ordering, with an amplitude of 0,20 %, and with a maximum not exceeding 1,20 % and a minimum not lower than 0,30 %.
ⓕ For certain applications, a lower level of sulfur and phosphorus may be agreed between the supplier and purchaser.
ⓖ he sum of the contents Cu + Ni + Cr shall not exceed 0,30 %, except when Cr is intentionally added at the request of the purchaser.
ⓗ Cu + Sn shall be ≤ 0,15 %. For certain applications, the Cu content may be restricted to 0,12 % max. by agreement and the content of Sn shall not exceed 0,03 %.
ⓘ By agreement between the supplier and purchaser, an Al range may be specified with a lower limit 0,02 % and an upper limit of 0,06 %. The value for silicon can then be fixed at ≤ 0,10 % on request.
ⓙ If, in accordance with footnote ⓘ, the Al content is fixed, the limit value of N shall be agreed at the time of ordering.