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How to distinguish between hot rolled and cold rolled process?The hot-rolled steel sheet has low strength, easy production and processing, and good plasticity. The process performance of the hot-rolled steel plate is poor (air oxidation and low smoothness), but the plastic deformation is good. Generally, it is medium and thick plate, API5L L450 X60 PSL2 carbon steel, high compressive strength, high strength, and high surface smoothness. Cold-rolled steel sheets have high strength and relatively difficult production and processing, but they are not easy to deform and have high compressive strength.
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, API5L L450 X60 PSL2 carbon steel.
Service concept:Customer satisfaction is our value. Thank customers for their trust, respect their rights and interests, care about their needs, understand their concerns, realize their satisfaction and promote their success. Sincere and friendly, warm and thoughtful, relaxed and pleasant, considerate and tolerant. Attentive service, sincere care, professional excellence. The first-class famous products API5L L450 X60 PSL2 carbon steel at home and abroad gather, and the outstanding charm of the East and the West radiates! Specialization, standardization, refinement, kinship.