Welding JIS SM400B plates steel tensile strength

The addition of Ca element in steel such as JIS SM400B plates can refine grain size, partly desulphurize and change the composition, quantity and morphology of non-metallic inclusions. It is similar to that of adding rare earth in steel. It can improve the corrosion resistance, wear resistance, high temperature and low temperature resistance of steel, improve the impact toughness, fatigue strength, plasticity and welding performance of the steel, and increase the cold heading, shock resistance, hardness and contact endurance strength of the steel.

HG785 is a new type of low alloy high strength steel with low expansion coefficient and stable elastic modulus. JIS SM400B plates, HG785 is an ideal material for manufacturing high strength products such as ships, super steel shells and pressure vessels.

Perhaps this JIS SM400B plates explains why Trump has warmed to the idea of constructing a border wall on the U.S. border with Mexico out of steel rather than concrete. In an interview with NPR, Tom Gibson, president and CEO of the American Iron and Steel Institute estimated that the barrier would require a hefty order of JIS SM400B plates 3 million tons of steel.