GB/T 4171 Q345GNHLJ Weathering steel plate, Q345GNHLJ steel sheet Technique

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GB/T 4171 Q345GNHLJ Weathering steel plate can be exposed to the atmosphere without painting. It begins to rust in the same way as ordinary steel. But soon the alloying elements in it cause a protective surface layer of fine-textured rust to form, thereby suppressing corrosion rate. Q345GNHLJ steel sheet exhibit a good resistance to corrosion than ordinary steel, it has smallest alloy elements not like stainless steel and its price is more cheaper than stainless.

Q345GNHLJ steel sheet is used for various types of welded, bolted and riveted constructions e.g. steel frame structures, bridges, tanks and containers, exhaust systems, vehicles and equipment constructions .Q345GNHLJ weathering steel plate has added phosphorous which makes the material best suited for gas flue applications and for aesthetic facias .

Q345GNHLJ steel sheet Chemical composition(%)

C≤0.12 Si:0.25-0.75 Mn:0.20-0.50 P:0.07-0.15 S≤0.035 Cr:0.30-1.25 Cu:0.25-0.55 Ni≤0.65

GB/T 4171 Q345GNHLJ steel plate Mechanical property

Yield strength Mpa:320-345 Tensile strength Mpa:450-480 Elongation %:22-26

Delivery state: Hot rolling or Cold rolling

GB/T 4171 Q345GNHLJ Weathering steel plate Specification

Thickness: 2.0-12mm

Width: 900-2100mm

Length: 2000-16000mm

Technique: Hot Rolled

Packaging Details: Standard export seaworthy packing or as required.

Delivery Time:30-50 days, 7 days for stock goods.

Loading Port:Shanghai ,Tianjin, Qingdao.

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