Differences between Hot Rolled and Cold Rolled Seamless Steel

What are the differences between hot-rolled and cold-rolled seamless steel tubes?

[{"selector":"#anim-69d1962d-1f57-4f0b-a2c5-88b7169288c7","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-bee666fd-2f0a-454b-98f4-f8725f4299ab","keyframes":{"transform":["translate3d(-116.38795%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] The term "hot-rolled steel tube" refers to a steel tube that has been rolled in a furnace at a high temperature, usually in the range of 1,200 to 1,500 degrees Celsius. The cold-rolled or cold-forming process involves passing the sheet metal through a die that cools in water for about one week.

Uses of different kinds

[{"selector":"#anim-4800a14f-4816-4d77-bb5f-a31fff135302","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-eaa2d8f0-8455-4cab-a6bb-9016b48e997d","keyframes":{"transform":["translate3d(-118.45637%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Seamless steel pipes used in industrialized or industrial applications are medium- and high-pressure steel pipes, as well as alloy steel pipes. The main hot working and cold working difference is their design; some are simpler while others are more complex.

Size differences

[{"selector":"#anim-b75f65ad-576c-477f-96bc-b6b11a533705","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-4dafd892-81be-49fb-b54e-1745c295fccb","keyframes":{"transform":["translate3d(-118.33333%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-12bccea7-76e7-47eb-b55b-de66a971f59b","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}]

Differences in processes

[{"selector":"#anim-ab49bc04-b3ef-4dee-8bfa-981321005d6d","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-28679a6a-7eab-4f6a-a821-5c87b1214aa9","keyframes":{"transform":["translate3d(-115.40984%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Cold-rolled formed steel allows local buckling whereas hot-rolled steel does not Since hot-rolled steel and cold-rolled steel have different sources of residual stress, their distributions are also very different. Since hot-rolled steel has a higher free torsional stiffness than cold-rolled steel, its torsion resistance is better.

As a result, there will be a negative difference between hot rolling and cold rolling the actual dimensions and those calculated by the engineer. We have to stabilize the thickness of each product with a certain degree of tolerance