Cause analysis and improvement measures of flaw detection for JIS carbon steel SM490YB CS plate

The tensile strength of seamless steel pipe is more than 8-10 times of that of ordinary steel, and its elastic modulus is better than that of steel, with excellent creep resistance, corrosion resistance and seismic resistance; the mechanical performance of seamless steel pipe is excellent, easy to machine, etc.; the seamless steel pipe JIS carbon steel SM490YB CS plate is highly elastic, reused in mechanical equipment, memoryless, deformation free, and antistatic.

EN10025-2 S235J2 steel is equivalent to our Chinese teel grade Q235D. They are both done low temperature impact test at -20℃. Sometimes S235J2 would be used to built containers which can bear low temperature sea water. JIS carbon steel SM490YB CS plate, S235J2+N steel plate, following a rolling process within a certain temperature range, producing a material in a condition equivalent to that obtained after normalization. With the result that the specified mechanical properties values are conserved even after normalization treatment.

We have a large number of JIS carbon steel SM490YB CS plate steel materials in stock, and provide deep processing services such as welding. In addition to simple welding parts, we can also weld H-beam, box column and other profiles. For such welded structure, our advantage is that there are high-quality and low-cost raw material steel plates, which can be cut into the JIS carbon steel SM490YB CS plate required size and welded into steel products with required shape and size, without being limited by the specifications of rolling production lines.