Alloy seamless pipe Seamless steel pipe is a steel pipe that is perforated by the entire round steel and has no welds on the surface. Or 40Cr, 30CrMnSi, 45Mn2, 40MnB, and other hot-rolled or cold-rolled combined steels.
First, the alloy seamless pipe process is as follows
1. Alloy seamless pipes are not applicable. In the process of heating rolling, heat treatment, and straightening, if the heating temperature is improperly controlled, the deformation is uneven, the heating and cooling speed is unreasonable, or the straightening deformation is too large, and the residual stress is too large, it may also cause surface cracks in the steel pipe.
2. High-magnification test of alloy seamless pipe (microscopic analysis): non-metallic inclusions 100×10561 Grain size: graded, graded seamless steel pipe has a hollow section and is used to transport liquids, such as crude oil, natural gas, liquefied gas, water, and some solid materials. Seamless steel pipe is made of an entire circular steel pipe that is perforated. There are no welds on the surface of the steel pipe, so it is called a seamless steel pipe.
3. Alloy seamless pipes depend on the chemical composition and heat treatment system of the steel. The production process is generally more complicated than hot rolling. The tube blank must first be continuously rolled with three rollers. After extrusion, a sizing test must be carried out. If there is no crack reaction on the surface of the round tube, it must be cut by a cutting machine. The cutting length is about 1 meter. blank. Hot-rolled seamless steel pipes are generally delivered in a hot-rolled state after heat treatment.
Second, the steps to explain the alloy seamless pipe
1. In the formula of alloy seamless pipe: Fs – yield force (constant) N (Newton) then – the original cross-sectional area of the sample, mm. The mechanical properties of steel are important indicators to ensure the final performance of the steel. In the process of heating rolling, heat treatment, and straightening, if the heating temperature is improperly controlled, the deformation is uneven, the heating and cooling speed is unreasonable, or the straightening deformation is too large, and the residual stress is too large, it may also cause surface cracks in the steel pipe.
2. Alloy seamless pipe Seamless steel pipe is a steel pipe that is perforated by the entire round steel and has no welds on the surface. High magnification test (microscopic analysis): non-metallic inclusions 100×10561 Grain size: graded, graded seamless steel pipe has a hollow section and is used to transport liquids, such as crude oil, natural gas, liquefied gas, water, and some solid materials.
3. Alloy seamless pipes are made of perforated circular steel pipes. There are no welds on the surface of the steel pipes, so they are called seamless steel pipes. not applicable. To sum up, this is our summary of relevant experience on alloy seamless pipe issues.
Post time: May-16-2024