① For long products the P and S content can be 0.005% higher.
② For railway applications a maximum S content of 0.012% may be agreed at the time of enquiry and order.
③ If sufficient other N-binding elements are present the minimum total AI content does not apply.
④ Cu content above 0.45% may cause hot shortness during hot forming.

* For long products of the grades S420 and S460 a maximum C content of 0.20% applies.