Precautions for storing straight seam steel pipes and introduction to diameter size

Precautions for storing straight seam steel pipes:

Most merchants do not use straight seam steel pipes quickly after purchasing them. So do we have anything to pay attention to in the storage of straight seam steel pipes? The staff of the straight seam steel pipe manufacturer reminded us that the correct storage method of straight seam steel pipes will play a good protective role and avoid many problems. First, we must classify and store straight seam steel pipes, so that we can avoid a lot of workloads when we need to use them. Straight seam steel pipes will rust during storage, so we also need to separate rusty straight seam steel pipes from good straight seam steel pipes when classifying. In order to avoid rust, straight seam steel pipes need to be isolated from acidic and alkaline substances to avoid the influence of these substances on straight seam steel pipes. Rainwater erosion is also a cause of rust, so we'd better not store them in the open air. Humidity will also have a great impact on straight seam steel pipes, so we need to choose a dry and ventilated place. The staff of the automobile tire manufacturer reminded us that there is a cushion layer under the straight seam steel pipe to isolate the ground moisture.

The series diameter size specified in the straight seam steel pipe standard:

The nominal diameter of the straight seam steel pipe refers to the series diameter size specified in the straight seam steel pipe standard. For straight seam steel pipes, pipe fittings, valves, etc., the nominal straight seam steel pipe diameter of its caliber is expressed in the series specified in the standard. The straight seam steel pipe pipeline components for conveying fluids adopt the nominal diameter series. The nominal diameter of the Chinese straight seam steel pipe standard is expressed as an integer in millimeters (mm).

The nominal diameter of the straight seam steel pipe standard is expressed in inches (in) or millimeters. When the nominal diameter of the straight seam steel pipe standard in my country is 10mm, it is marked as DNIO.

The working pressure of the straight seam steel pipe refers to the pressure that the pipe, pipe fittings, valves, and other pipeline components are subjected to under normal operating conditions. The design pressure of the straight seam steel pipe refers to the pressure that the pipeline is subjected to in the combination of harsh conditions and corresponding design temperature during normal operation.

The working temperature of the straight seam steel pipe is the temperature of the pipeline under normal operating conditions, and the design temperature of the pipeline is the set straight seam steel pipe pipeline that may withstand the corresponding design pressure during normal operation.

Straight seam steel pipe welding steel pipe heating physical deformation: Straight seam steel pipe welding steel pipe heating physical deformation, if the first straight seam welding steel welding, can reduce the size of the data to a large extent the straight seam steel pipe physical deformation. Straight seam steel pipe project demand, high demand, the first start of the outer seam welding, to ensure the straight seam steel pipe penetration, straight seam steel pipe weld beauty, and straight seam steel pipe weld continuous linearity. In the case of severe corrosion of steel, strictly clean the edge, while the weld morphology control, to ensure the weld formation. The storage and transportation conditions of the steel plate have an important influence on the welding of steel pipes. Severe corrosion of the steel plate in the open air is inevitable, which will have a significant impact on the product. Steel pipes can also be stacked, on the other hand, from the adjacent steel pipes to attach lateral constraints; secondly, also supported by the following, fixed block steel pipe support. From the above analysis, the static accumulation of steel pipes under gravity is mainly caused by the upper steel pipe fixed block steel pipe support and horizontal binding and other three forces; but in the transportation process, the stress distribution of the steel pipe changes under the larger dynamic load. On the one hand, the steel pipe D/t (steel pipe diameter D, t steel pipe wall thickness) is relatively large, and the stress of the stacked steel pipes at the bottom of the cabin is relatively complex. The horizontal direction has been affected by the binding of adjacent pipes, and the longitudinal steel pipes are under the weight and fixed blocks, and the combined effect of the gravity of the accumulated stacked rods makes the horizontal and vertical alternation of the pipe section likely to cause warping deformation. If the steel pipe is shipped, the shorter dimension is lower, then the pressure steel pipe at the top and the adjacent pipes are required to be high.