Steel Knowledge · Material grades
S355NH is a structural hollow-section grade associated with a normalised or normalising-rolled delivery condition in applicable product specifications.
The suffixes convey material characteristics and delivery requirements; they are not optional decorative text in a purchase order.
Check the full EN product standard and edition, delivery condition, wall thickness and certification before requesting S355NH.
Do not substitute S355NH for S355J2H or S355NLH solely on the basis of the common S355 designation.
Related catalogue context is not a certification statement. Validate process, edition, product scope and the supplier's actual offer.
These are references from the governed public source record, not a statement of equivalence or current certification.
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