①Elements which are not featured in this Table may not be deliberately added to the steel except for the purpose of finish-treating the melt. Every suitable precaution must be taken to ensure that no such elements are inadvertently added via the scrap or via other substances used for manufacture; percentages of companion elements are however permissible provided that the specified values of mechanical properties and of hardenability are satisfied, and that the usability of the product is not impaired
②In the case of steel melted or remelted under vacuum, the manganese content may be allowed to drop slightly below the lower limit specified.
③In the case of melting or remelting according to the electroslag process, the phosphorus and sulphur contents shall each be ≤ 0.015 %.

①GZK=annealed for spheroidization of carbides；GZK+K=annealed for spheroidization of carbides + cold finished；GKZ+K+G=annealed for spheroidization of carbides + cold finished + soft annealed；GKZ+SH=annealed for spheroidization of carbides + peeled；C=treated for shearability；BG=heat-treated for ferritic-pearlitic structure；BF=heat-treated to achieve a given tensile strength；BG+K=heat-treated for ferritic-pearlitic structure + cold finished
② HV in the case of thin product
③The hardness of steel in GKZ+K+G state is for reference only.

*Guide values. Depending on the degree of cold working, the values may be situated up to 50 HB approx. above those for the condition annealed for the spheroidization of carbides (GKZ).