The production process of seamless steel pipes is relatively cumbersome and rigorous. After the seamless steel pipe is produced, certain tests must be carried out. Do you know the flattening test method and steps of the seamless steel pipe? 1) Flatten the sample: 1. The sample is cut from any part of the seamless steel pipe that has passed…
Read MoreSubmerged arc welding technology is the welding process of SSAW steel pipe and LSAW steel pipe. During the welding process, in addition to insufficient penetration, burn-through and poor formation caused by improper welding process parameters, there will also be pores, slag inclusions, cracks, etc. Defects. This article mainly introduces the main reasons and preventive measures for porosity in submerged…
Read MoreDuring the rolling process of seamless steel pipes, due to the influence of the stability of the machine and peripheral equipment and the uncertainty factors in the production process, the product dimensions often exceed the tolerance range specified in the product standard. The situations are as follows: 1. Uneven wall thickness 1)Features: The wall thickness of the steel pipe…
Read MoreProject Location：Nigeria Products：Bend Size： 10″ Standard：API PSL2 ANNEX J X65 Coating requirement:3LPP Application：Offshore Pipeline Inquiry Time: Dec, 2021 Purchase Time：May, 2022 This order is a regular client in Nigeria for the bend. Xinyue has rich experience in supplying bend. In the early stage, we provided the client with a number of bend production videos and shipment project records, which…
Read MoreSpiral steel pipe(ssaw) is a steel pipe with spiral seam, which is made of strip steel coil as raw material, often warmly extruded, and welded by automatic double-wire double-sided submerged arc welding process. It is mainly used in pipeline transportation of oil, natural gas, bridges, docks, roads, buildings and other projects. Welding is the most common connection method for…
Read MoreThe problem of uneven wall thickness of large-diameter seamless steel pipes is relatively common in the production of seamless steel pipes, and it is also a headache for customers. The unevenness of the thick-walled seamless steel pipe is mainly reflected in the uneven spiral wall, the uneven linear wall thickness, and the thickness of the head and tail is…
Read MoreSeamless pipe refers to a steel ingot or solid pipe blank that is perforated into a capillary pipe, and then hot-rolled, cold-rolled or cold-drawn. Compared with solid steel such as round steel, the steel pipe is lighter in weight when the bending and torsional strength is the same, and is an economical section steel. So what are the characteristics…
Read MoreCold drawn seamless pipes refer to steel pipes with high dimensional accuracy and good surface finish used in mechanical structures and hydraulic equipment. Heat treatment is an essential process in its production process, this is why? The function of heat treatment of cold drawn seamless pipes is to improve the mechanical properties of steel pipes and precision steel pipes,…
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.
