GB/T 4171 Q550NH Weathering steel round bar, Q550NH steel bar Heat Treatment

GB/T 4171 Q550NH Weathering steel round bar is under GB/T 4171 standard. Q550NH steel is a kind of weathering steel, Q550NH steel bar is also called Q550NH corten steel. Q550NH weathering steel in most environments is substantially better than carbon steel with or without copper addition. Q550NH steel round bar is intended for welded, bolted or riveted construction of bridges and other structures where high strength and enhanced corrosion resistance are required.

Q550NH steel round bar has a protective layer of rust resistance to atmospheric corrosion, it can be used in the manufacture of vehicles, bridges,towers, containers and other steel low-alloy structural steel.

Q550NH steel bar Mechanical property

Yield strength Mpa:530-550 Tensile strength Mpa:620-780

Q550NH steel round bar Chemical composition(%)

C≤0.16 Si≤0.65 Mn≤2.00 P≤0.025 S≤0.030 Cu:0.20-0.55 Ni:0.12-0.65 Cr:0.30-1.25

Heat Treatment: CR, Normalized, Quenched, Tempering, TMCP, Electroslag Remelting Technical.

GB/T 4171 Q550NH Weathering steel round bar Specification

Length: 3000-12000mm or as required

Diameter: 10-350mm

Q550NH steel processing service: Transverse cutting, longitudinal cutting, trimming, volume classification, coated film, coated paper ,profile of cutting, bending, punching, welding, removing rust, and product packing , shipping services and On-site assistance.

Bebon international is a special-purpose Q550NH steel round bar stockist in china. My company has sufficient stock supply of Q550NH steel round bar.If you need a urgent of Q550NH steel,pls contact us.We will support best quality and fast delivery time. pls believe us.

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