Carbon equivalent
A unique combination of alloying elements optimizes the mechanical properties of SSAB steels. This combination governs preheating and interpass temperatures of SSAB steels during welding and can be used to calculate the carbon equivalent. The carbon equivalent is usually expressed as CEV or CET according to the formulas.
Carbon equivalent formulas.
The alloying elements are specified in the mill certificate of SSAB steels and are stated in weight percentages in the two formulas. Mill certificates could be ordered together with the plate identification.
A higher carbon equivalent usually requires a higher preheating and interpass temperature. The typical carbon equivalent for all SSAB steels grades is guaranteed in SSAB’s product data sheets. However, if the minimum preheat temperatures stated in the table below are followed, calculation of the carbon equivalent is not needed.
The information in this report is only applicable to SSAB’s products and should not be applied to any other products than original SSAB products.
This report provides general results and recommendations for SSAB steel products. This report is subject to SSAB’s Terms of Use. It shall be the user's responsibility to verify that the information contained herein is correct and is suitable to be used for the particular purpose and application of the user. The report is intended to be used by professional users only who possess adequate expertise, qualification and knowledge for the safe and correct use of the results and recommendations in this report. This report is provided “as is”. The use of the report is at user’s own discretion and risk and that users will be solely responsible for any use of this report. SSAB disclaims any liability for the content or potential errors of this report, including but not limited to warranties and condition of merchantability or fitness for a particular purpose or suitability for individual applications. SSAB shall not be liable for any kind of direct or indirect damages and/or costs related to or arising therefrom, whether special, incidental, consequential or directly or indirectly related to the use of, or the inability to use, the report or the content, information or results included therein.