Calculation of the carbon equivalent (CEV). CEV stands for "Carbon equivalent value", which means carbon equivalent in German. With this tool you can calculate the CEV value. A maximum of three digits after the decimal point are required for this. The formula used by the International Institute of Welding is only recommended from a carbon content of 0.18 percent.


Calculation of PREN. The PREN index (Pitting Resistance Equivalent Number) is a measure of the corrosion resistance of a stainless steel. The ASTM G48 specifies the detailed test methods. In general, the higher the PREN value, the more corrosion-resistant the steel.

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