The main characteristic of seamless steel pipe is no welding seam, can withstand higher pressure. It make the most of advantage of the micro structural material state for a physical view. The straightening process is generally used to eliminate the longitudinal bending and the roundness error of the rolled seamless steel tube.

​Today I will mainly introduce the difference between Straight Seam Pipes and Seamless Steel Pipes. So that we can help you know how to choose right pipe in your field.

Hot rolled steel tube and cold rolled steel pipe are all forming processes of section steel or steel plate. They have a great influence on the structure and performance of steel. The main rolling of steel is hot rolling, and cold rolling is only used for consumption of small size steel and thin plate.

Before introducing alloy seamless steel tube, let us introduce what’s meaning of alloy steel tube.Alloy steel means except steel and iron elements, other alloy elements also be added in it. So we call it alloy steel. Except normal carbon elements, there is one or more alloy steel be added in it, we call it iron carbon alloy steel.

Seamless steel tube has many types: HOT ROLLING SEAMLESS STEEL TUBE, COLD ROLLED SEAMLESS STEEL TUBE, COLD DRAWN SEAMLESS STEEL TUBE.

ASTM A106 Seamless Steel Tube ASTM A106 standard covers seamless cold drawn low carbon steel heat exchange and condenser tubes. Seamless low-carbon steel tube for heat exchange and condenser, including wall thickness and outside diameter tubes.

DIN2391 is one of the primary standards in steel pipe industry and it contains some requirements such as specification, application, mechanical properties, tolerance and so on.