S420NL steel is a good weldability structural steel grade. General requirements for arc welding of the steels specified shall be as given in EN 1011-2.
S420NL steel plate is one kind steel grade in steel standard EN 10025-3 which also contains steel grades S275N,S275NL,S355N,S355NL,S420N,S460N,S460NL. All the steel grades may be supplied in the following qualities as specified at the time of the enquiry and order: I.with specified minimum values of impact energy at temperatures not lower than -20 °C, designated as N. II. with specified minimum values of impact energy at temperatures not lower than -50 °C, designated as NL.So for steel plate S420NL shall be done low temperature impacting test under minus 50 centigrade.
S420NL steel Specification:
Thickness: 8mm-200mm
Width: 1000mm -- 4000mm
Length: 3000mm -- 18000mm
S420NL mainly used for the production of various types of heavily loaded parts of welded structures such as, bridges, flood gates, storages tanks, water supply tanks, etc.
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