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What are the factors that cause horizontal stripes in spiral seam submerged arc welded steel pipe
First of all, it may be due to the stress of spiral submerged arc welded steel pipes. That is, the residual stress and welding stress after the steel pipe is formed. Secondly due to the presence of hydrogen. For example, the flux is not dried enough, the preheating temperature is insufficient pre...Read more -
Industrial stainless steel pipe specifications details
Industrial stainless steel pipe specifications play a vital role in engineering design and construction. Understanding stainless steel pipes of different specifications is crucial to project quality and cost control. Industrial stainless steel pipe specifications refer to the specific standards o...Read more -
What is the difference between HFW steel pipe and ERW steel pipe
The main difference between ERW (straight seam resistance welded) steel pipes and HFW (high frequency welded) steel pipes is their different principles. As the name suggests, resistance welding is a method in which pressure is applied through electrodes after the welding parts are assembled, and ...Read more -
Common methods for anti-corrosion of 3PE anti-corrosion steel pipe
Common methods for anti-corrosion of 3PE anti-corrosion steel pipes: 1. Steel pipeline anti-corrosion generally uses two main methods: outer coating and cathodic protection. 2. Although most of the surface of the pipeline is covered by the coating, a slight leak will cause incredible corrosion ra...Read more -
Characteristics, applications, and future development of DN1000 large-diameter plastic-coated steel pipes
In today’s industrial world, the selection and use of piping materials are critical to the proper operation of the entire system. Among them, DN1000 large-diameter plastic-coated steel pipe is gradually receiving widespread attention as an advanced pipeline solution. First, the characterist...Read more -
Performance processing of small diameter precision seamless steel pipe
1. The original state of steel, that is, the delivery state of steel pipes, can be divided into (codes in brackets): cold working/hard (BK), cold working/soft (BKW), stress relief annealing after cold working (BKS), tempering (GBK) ), normalizing (NBK). The commonly used state is the annealed sta...Read more