2023-12-21 What is Schedule 80 galvanized pipe?
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2023-12-21 Pre-welding of straight seam steel pipes: Pre-welding includes joints and welds.1. The seam joint (that is, the forming seam) has no wrong edge or the wrong edge is less than the specified value. Generally, the wrong edge amount is ≤ 8% of the plate thickness, and the maximum value shall not exceed
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2023-12-20 This article compares the strength of rectangular tubes and square tubes in terms of four aspects: strength, stiffness, stability, and load-bearing capacity. This article compares the strength of rectangular tubes and square tubes in terms of four aspects: strength, stiffness, stability, and load-be
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2023-12-20 Alloy steel and critical components of thick parts must be preheated before welding. The purpose of preheating before welding is as follows:(1) Preheating can slow down the cooling rate after welding, allowing hydrogen to diffuse and escape in the weld metal, thus avoiding cracking caused by hydroge
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2023-12-19 First, The name 'stainless steel' refers to the material used in the pipes. The basic concept and characteristics of stainless steel pipes are that they are made of a corrosion and oxidation-resistant alloy composed of iron, chromium, nickel, and other elements. Stainless steel pipes are widely used
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2023-12-19 First, different steel pipe processing methods1. Cold plating: It is a process that uses electrochemical principles to perform anti-corrosion treatment on the surface of workpieces.2. Hot plating: Also called hot dip galvanizing, it is a method of immersing steel components in molten zinc to obtain
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2023-12-18 The maintenance of straight seam welded pipe equipment has become a headache. Straight seam welded pipe equipment plays an important role in life and work. It is generally required that the surface of straight seam welded pipe fittings reaches a nearly white level (Sa2.5). The practice has proved th
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2023-12-18 In the production process of spiral submerged arc welded steel pipes, if transverse lines occur, how can we identify and eliminate the cause of the problem?Firstly, residual stress and welding stress after steel pipe molding may be contributing factors.Secondly, the presence of hydrogen could also b
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