What is S420ML steel plates equivalent steel grade in China

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The difference between q345 and q235 steel S420ML steel platesThe lower limit of yield strength of Q345 is 345MPa (the actual meaning of Q is the Chinese character ""qu"", and the standard value behind means the lower limit of yield strength). Q235 steel is used for metal structural parts, nitrided or cyanidized parts with low core compressive strength requirements, support rods, crankshafts, crane hooks, couplers, bolts and nuts, sleeve specifications, shafts and weldments.

The mechanical properties of 20MnV steel are as follows: tensile strength 785 MPa, yield strength 590 MPa, elongation after fracture 10%, reduction of area 40%, impact absorption energy 55 J. S420ML steel plates, 20MnV steel has good properties, good strength, toughness and plasticity, good hardenability and machinability. After carburizing, 20MnV steel can be directly quenched without secondary quenching to improve the core structure. The weldability of 20MnV steel is good, but there is temper brittleness at 300-360 ℃ during heat treatment.

we also provide the S420ML steel plates welding service for customers, and our welding method, hand arc welding, submerged arc welding and tungsten argon arc welding, melting polar gas shielded welding and so on. And we have lots of successful S420ML steel plates welding project, such as longitudinal submerged arc welding pipe, welding cross colume, prestressed truss and welding box colume.

If you want to get the ASTM A573 Grade 70/A573 Gr.70 carbon manganese silicon steel plates steel price, please do not hesitate to contact us. Any need in S420ML steel plates ASTM A573 Grade 70/A573 Gr.70 carbon manganese silicon steel plates Chemical Composition and Mechanical Properties, please feel free to contact us by email or calling to us

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