The performance and functions of the original color straight seam steel pipes in the specific use process fully demonstrate the operational contribution and the use performance. After painting, and spraying white characters, the straight seam steel pipes also look very energetic and beautiful. The current pipe fittings, whether carbon steel straight seam steel pipes, carbon steel heads carbon steel tees, or four-way welding pipe fittings, are all original colors, saving the process. It is painted, and it only looks good at the time, and it plays a role in preventing the surface from rusting. After the straight seam steel pipe is welded to the pipeline, it still needs to be painted for anti-corrosion. Then the insulation process is carried out.
What is the original color straight seam steel pipe? It is the straight seam steel pipe produced by carbon steel pipe. 90-degree straight seam steel pipes, 45-degree straight seam steel pipes, heads, Hebei elbows, tees, and other welding pipe fittings are not painted for anti-corrosion and the original color of the steel pipe. This color is red (the straight seam steel pipe is pushed out in the production process like this) and cyan, which is the original color of the straight seam steel pipe. The original straight seam steel pipe cannot be sold without anti-rust paint. It is mostly a semi-finished product. It has almost become a regulation in the industry. Otherwise, it is not considered a complete straight seam steel pipe. During winter construction, the pipe is not easily broken by impact, which increases the flexibility of construction arrangements. It is environmentally friendly and can be recycled without polluting the environment. Failure to recycle will cause secondary pollution; there are problems such as controlling the degree of cross-linking and the uniformity of cross-linking, and the processing is complicated and directly affects the performance of the pipe.
Two points to teach you how to distinguish straight seam steel pipes:
1. Distinguish straight seam steel pipes by outer diameter: outer diameters between φ4.76-φ12.70 mm are narrow-diameter straight seam steel pipes; outer diameters between φ13-φl14 mm are small-diameter straight seam steel pipes; outer diameters between φ114-φ406 mm are medium-diameter straight seam steel pipes; outer diameters greater than φ406 mm are large-diameter straight seam steel pipes.
2. Distinguish welded steel pipes by wall thickness:
According to the ratio of wall thickness t to outer diameter D of the steel pipe, welded steel pipes can be divided into the following five categories:
①t/D less than 2% is a special thin-walled steel pipe;
②t/D equal to 2-5% is a thin-walled steel pipe;
③t/D greater than 5-12% is a normal wall steel pipe;
④t/D greater than 12-18% is a thick-walled steel pipe;
⑤t/D greater than 18% is a special wall steel pipe.
Thin-walled steel pipes, ordinary thick-walled steel pipes, and thick-walled steel pipes are not conceptually distinguished by the value of wall thickness. However, some standards have three different wall thicknesses corresponding to the same outer diameter. These three wall thicknesses of steel pipes may be named thin-walled steel pipes, ordinary thick-walled welded steel pipes, and thickened straight seam steel pipes in the standard. Because of the special functions of straight seam welded steel pipes such as corrosion resistance, oxidation resistance, anti-static, and the beauty and durability of straight seam welded steel pipes, it has gradually become a trend to use them to make some machinery, components, and springs. With the continuous maturity and stability of the process flow, the straight seam welded steel pipes, which have been growing and developing in recent years, are gradually penetrating various fields such as practical small hardware and building decoration industry with their functions and polynomial functions. Moreover, as people become more and more familiar with it, its demand will become more and more rapid, and its application field will inevitably become more and more extensive. For example, the widely used welding rods and a large number of stainless steel components and connectors have also been widely occupied by straight seam welded steel pipes. In addition, with the full development and rational use of high-tech products, the application scope of straight seam welded steel pipes is further expanding. Many industries that need to replace new materials have adopted straight seam welded steel pipes, especially the equipment transformation of the chemical industry and chemical fiber industry.
Post time: Jan-07-2025