Product News
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Introduction to the quality process and characteristics of large-diameter flanges
Large-diameter flanges are one type of flanges, which are widely used and promoted in the machinery industry and have been well received and favored by users. Large-diameter flanges are widely used, and the scope of use is determined according to different characteristics. They are mostly used in...Read more -
Common defects in the welding area of spiral seam submerged arc welding steel pipe
Defects that are prone to occur in the submerged arc welding area include pores, thermal cracks, and undercuts. 1. Bubbles. Bubbles mostly occur in the center of the weld. The main reason is that hydrogen is still hidden in the welded metal in the form of bubbles. Therefore, the measures to elimi...Read more -
Application fields of large-diameter plastic-coated steel pipes
Large-diameter plastic-coated steel pipes are mainly made of spiral steel pipes or seamless steel pipes as the base material. It is not recommended to use straight-seam welded pipes. Straight-seam welded pipes are usually not as good as spiral steel pipes in terms of pressure bearing, and the cos...Read more -
Common defects and control measures of pickled steel plates
1. Overview of pickled products: Pickled steel plates are made of hot-rolled steel coils. After pickling, the surface quality and use requirements of pickled steel plates are intermediate products between hot-rolled steel plates and cold-rolled steel plates. Compared with hot-rolled steel plates,...Read more -
How to increase the hardness of the surface of thick-walled stainless steel pipes
Thick-walled stainless steel pipes have many advantages, such as high-temperature oxidation resistance, strong corrosion resistance, good plasticity, excellent welding performance, etc., and are widely used in various civil industrial fields. However, due to the low hardness and low wear resistan...Read more -
Steel pipe A33 is used as a sturdy choice for construction
Steel pipe A33, as an important material in the construction field, bears the weight and pressure of building structures such as buildings, bridges, and pipelines. Its advantages lie in its durability, easy processing, and environmental protection, and it has been widely used and favored. 1. Char...Read more