Q345/S355JR /SA516Gr70 Carbon Steel Bar

Q345/S355JR /SA516Gr70 Carbon Steel Bar
Product Parameters


Q345/S355JR /SA516Gr70 Carbon Steel Bar provides a balance between low and high carbon steel, offering greater strength and hardness than low carbon steel while still remaining more ductile than high carbon steel. Medium carbon steel also typically contains other alloys, such as manganese, that also contribute to its properties.


Product NameQ345/S355JR /SA516Gr70 Carbon Steel Bar
TechniqueHot Rolled Cold Rolled
Width10-300mm
Length2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
StandardASTM JIS AISI GB DIN EN
ApplicationShipbuilding,Offshore Platform,Bridges,Boiler,Large Structure Steel,Architecture,Vehicles Components,High Pressure Container
EdgeMill Edge /Slit Edge
Material1026,1035,1040,1045,1050,1060,25Mn,SWRCHB323,C26D,35#,S35C,40#,S40C,45#C45,CK45,50#,S50C,60#,S60C,C60E etc
Export PackingPVC+ waterproof paper + strong sea-worthy wooden package
Container Dimension20ftGP:5898mm(Length)x2352mm(Width)x2393mm(High)   24-26CBM
40ftGP:12032mm(Length)x2352mm(Width)x2393mm(High)  54CBM
40ftHC:12032mm(Length)x2352mm(Width)x2698mm(High)    68CBM



Product Display


We supply high-quality carbon steel bars in various specifications including round, square, hexagonal and flat shapes. Manufactured from premium low, medium and high carbon steel grades (Q235, 1045, 4140, etc.), our products feature excellent machinability and weldability, making them ideal for construction, machinery manufacturing, automotive industry and other applications.





Our bars are produced through precision hot-rolling and cold-drawing processes, utilizing automated temperature control systems and online dimensional inspection to maintain tight tolerances within ±0.1mm. Rigorous quality testing procedures are implemented throughout production, including chemical composition analysis (C, Mn, Si content), mechanical property testing (tensile strength 400-850MPa), surface quality inspection, and dimensional accuracy verification. All products comply with international standards such as ASTM A29 and EN 10025, and are supplied with complete quality certification documents.





In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.





Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.


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