Q355GNHA Q355NHA Weather Corrosion Resistant Steel Plate

Q355NHA steel is a national standard weathering steel. Q355NHA corten steel sheet metal is produced according to the GB/T4171 standard. A small amount of chemical element copper is added to the steel plate to improve the internal corrosion performance of the steel plate in harsh climate environments. Q355NHAB is easy to cut, weld and produce. The thickness is between 8mm-100mm.

Q355GNHA is weather-resistant steel. By adding a small amount of alloying elements such as Cu, P, Cr, Ni, etc., it forms a protective layer on the basic surface of the metal to improve the atmospheric corrosion resistance of steel. The trademark of steel consists of the Chinese pinyin letters "Q", "GNH", "NH" for "yield strength", "high weather resistance" or "weather resistance", the lower limit of yield strength and the quality grade (A, B, C, D, E) composition.

Mechnical property for Q355GNHA corten plate:

Chemical composition for Q355GNHA corten plate (Heat Analysis Max%):

C	Si	Mn	P	S	Cu	Ni	Cr
0.12	0.20-0.75	1.00	0.07-0.15	0.020	0.25-0.55	0.25-0.55	0.30-1.25

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