The standard of S420M alloy steel plate : EN 10025-4: 2004 Hot rolled products of structural steels. Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels. EN 10113-3: 1993 Hot-rolled products in weldable fine grain structural steels. Delivery conditions for thermomechanical rolled steels.
Chemical composition % of S420M alloy steel plate (1.8825): EN 10025-4-2004
Nominal thickness =< 16(mm) CEV max = 0.43.
Nominal thickness from 16 to 40 (mm) CEV max = 0.45.
Nominal thickness from 40 to 63 (mm) CEV max = 0.46.
For long products the P and S content can be 0.005% higher.
For railway application a maximum S content of 0.01% may be agreed at the time of enquiry and order.
In sufficient other N-binding elements are present the minimum total Al content does not applay.
Cu content above 0.45% may cause hot shortness during hot forming.
For long products a maximum C content of 0.20% applies.
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