The outer diameter of the hot-rolled seamless pipe is generally larger than 32mm, and the wall thickness is 2.5-75mm. The diameter of the cold-rolled seamless pipe can be 6mm, the wall thickness can be 0.25mm, the outer diameter of the thin-walled pipe can be 5mm, and the wall thickness is less than 0.25mm. The size accuracy of the cold-rolled seamless pipe is higher than that of the hot-rolled seamless pipe, A514 Gr P structural steel material.
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HG785 is a new type of low alloy high strength steel with low expansion coefficient and stable elastic modulus. A514 Gr P structural steel material, HG785 is an ideal material for manufacturing high strength products such as ships, super steel shells and pressure vessels.
