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You are here : section steel--Katalor steel > News > 正文GB/T4171 Q355GNH China quality H-beam steel

GB/T4171 Q355GNH China quality H-beam steel

Q355GNH

Q355GNH GB China prime quality H-beam steel has a protective layer of rust resistance to atmospheric corrosion, it can be used in the manufacture of bridges, towers, containers and other steel low-alloy structural steel.

Q355GNH steel chemical composition(%)

Grade	C Max	Si	Mn Max	P	S Max
Q355GNH	0.15	0.25-0.75	1.0	0.07-0.15	0.02

Q355GNH steel mechanical property

Grade	Yield Strength(MPa)	Tensile Strength(MPa)	% Elongation min
Q355GNH	345-355	490-630	22

Q355GNH steel H-beam has a protective layer of rust resistance to atmospheric corrosion, Compared with carbon steel, Q355GNH steel H-beamhas better corrosion resistance in the atmosphere. Compared to stainless steel, only trace amounts of alloying elements, alloys such as weathering resisting steel elements of total phosphorus, copper, chromium, nickel, molybdenum, niobium, vanadium, titanium, etc. is only a few percent.

Q355GNH steel H-beam Application:

Q355GNH steel H-beam major added metal elements are nickel, copper. These elements change the basic properties of the original carbon steel. Let carbon steel has a better mechanical properties. Q355GNH steel H-beam for better corrosion resistance and can be used as processing materials aboard, the container, the train tracks.

Q355GNH Specification:

Thickness: 5-300mm
Width: 1500-3700mm
Lenght: 4000-18000mm

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Address : Room 301,Unit 6,lane 2500,xiupu Road,Kangqiao Industrial Area,Pudong New District,Shanghai