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What should be done when cooling the large-diameter steel pipe ends
(1) When cooling ends, i.e., when the surface and core temperatures of the large-diameter steel pipe are completely equal, the elastic deformation of both the surface and core disappears, returning to their original state. Although instantaneous thermal stress is generated during the cooling proc...Read more -
What are the commonly used production processes for Q420C straight seam welded pipes in the industry
First, what are the raw material preparations for Q420C straight seam welded pipe production? (a) Steel plate selection: Select steel plates that meet the Q420C material standard, ensuring that their chemical composition and mechanical properties meet the requirements. The thickness, width, and o...Read more -
What is the compatibility of seamless steel pipe processing and assembly with flange sleeves
First, what is the current state of flange sleeves? Flange sleeves are key transitional components in pipeline connection systems. Through precise fitting with seamless steel pipes and the connection function of the flange structure, they achieve pipeline sealing and load-bearing. Their assembly ...Read more -
What are the causes of corrosion in stainless steel welded pipes
In numerous industrial applications, stainless steel offers satisfactory corrosion resistance. Based on experience, besides mechanical failure, corrosion of stainless steel water pipes mainly manifests in the following ways: A serious form of corrosion in stainless steel is localized corrosion (i...Read more -
Which fields utilize high-toughness 42CrMo alloy steel pipes
First, what are the applications of 42CrMo alloy steel pipes in the machinery manufacturing industry? Core components: Used to manufacture high-strength, high-precision mechanical parts such as gears, shafts, connecting rods, bolts, and nuts, capable of withstanding complex alternating stresses a...Read more -
What are the technical requirements for boiler heat exchanger steel tubes using seamless steel pipes according to NB/T47019-2021
First, what is the standard for seamless steel pipes according to NB/T47019-2021? Replaces Standard: NB/T47019-2021 replaces NB/T47019.1~47019.8-2011, comprising nine parts. Scope of Application: Specifies the ordering technical conditions for seamless and welded steel pipes for boilers and heat ...Read more -
What are the main applications of precision TP316L stainless steel pipes
Precision TP316L stainless steel pipes, due to their excellent performance, have key applications in many fields: 1. Applications of precision TP316L stainless steel pipes in the medical device field: 1) Implantable devices: Due to the excellent biocompatibility of TP316L, it almost never trigger...Read more -
What are the advantages of seamless steel pipes compared to other steel pipes
1. Do seamless steel pipes have higher strength and corrosion resistance? Yes! Compared to other steels, seamless steel pipes have higher strength and corrosion resistance. This is because seamless steel pipes are made of high-quality materials such as stainless steel, which have better corrosion...Read more -
Why is the outer coating of plastic-coated steel pipes considered an invisible shield of quality assurance
In complex industrial and civil applications, plastic-coated steel pipes, with their unique anti-corrosion, wear-resistant, and weather-resistant properties, have become a leader among many pipeline systems. So, what exactly is the outer coating of plastic-coated steel pipes, and how can it so ef...Read more -
What are the technological problems causing cracking in precision steel pipes
First, what are the core process-related causes of cracking in precision steel pipes? Precision steel pipes have extremely high requirements for dimensional accuracy, surface quality, and mechanical properties. Cracking is often directly related to subtle deviations in the manufacturing process. ...Read more -
What are the methods for detecting wall thickness deviation in precision steel pipes
First, what are the preparatory steps before detecting the wall thickness of precision steel pipes? (a) Sample pretreatment: Remove oil, rust, coatings, and other impurities from the steel pipe surface to avoid affecting measurement accuracy. For bent or deformed steel pipes, straightening treatm...Read more -
How to Control the Drilling Position of Precision Steel Tubes
First, Precise Positioning of Precision Steel Tubes. The positioning of precision steel tubes is the foundation of drilling position accuracy. Errors caused by datum offset and clamping deformation must be avoided: - Datum Selection and Calibration: The outer diameter or end face of the steel tub...Read more