Hot-rolled building structural steel

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Description

Hot-rolled structural steel for building construction steel has the characteristics of low carbon content, good welding performance, low yield strength ratio, and high strength.

These products have passed JIS certification and are widely used in the construction and pipe manufacturing industries.

The comparison list of steel grade and corresponding grades (1)

Q/BQB313-2009JIS G3136-2005ISO 24314: 2006GB/T19879-2005
SN400ASN400A--
SN400BSN400BS235SQ235GJ-C
SN490BSN490BS325SQ345GJ-C

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