• The table shows the chemical composition of heat analysis.
① FN = rimming steels not permitted; FF = fully killed steel. t=nominal thickness in mm
② For sections with nominal thickness > 100 mm, the C content is by agreement.
③ For long products, the P and S content may be 0,005 % higher.
④ For long products, the max. S content may be increased for improved machinability by 0,015 % by agreement if the steel is treated to modify the sulfide morphology, and if the chemical composition shows min. 0,002 0 % Ca.
⑤ The maximum value for nitrogen does not apply if the chemical composition shows a minimum total Al content of 0,020 % or, alternatively, minimum 0,015 % acid-soluble Al or if sufficient other N-binding elements are present. In this case, the N-binding elements shall be mentioned in the inspection document.
⑥ Cu content above 0,40 % can cause hot shortness during hot forming.
⑦ If other elements are added, they shall be mentioned on the inspection document.
* For nominal thickness t>30mm:C=0.22% max.
◎ Applicable for long products only.