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Defects that are prone to occur in the submerged arc welding area include pores, thermal cracks, and undercuts. 1. Bubbles. Bubbles often 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 eliminate ... Read More
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Detailed explanation of large-diameter straight seam steel pipe welding process: Double-wire automatic welding of straight seam steel pipe is a welding technology developed in recent years. In addition to the characteristics of semi-automatic single-wire welding, it also has welding characteristics ... Read More
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1. The uses of large-diameter straight-seam welded steel pipes can be divided into oil well pipes (casing pipe, oil pipes, drill pipes, etc.), pipeline pipes, boiler pipes, mechanical structure pipes, hydraulic support pipes, gas cylinder pipes, geological pipes, chemical pipes (high-pressure ... Read More
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Rapid growth in the oil and gas industry has increased demand for HSAW Steel pipes and is expected to drive market growth. This article will take a market snapshot of HSAW(spiral submerged arc welded) steel pipe. The HSAW steel pipe market will grow at a CAGR of 5.9% from 2019 to 2023. The growth of ... Read More
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Several of the proposals highlighted in the 2023-2024 evaluation could translate into renewed hope of boosting demand and the steel industry. Although there is not much emphasis on the steel industry in the 2023-2024 Budget, there is still an opportunity to drive demand for steel in the domestic ... Read More
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Union Minister Faggan Singh Kulaste said the focus in 2023 will be on increasing the supply of raw materials and producing more special grade steel as the country's steel production ramps up. In an interview with PTI, Minister of State for Steel Kurast said that the industry will take more ... Read More
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DIN1629 seamless steel pipes application fields are: chemical plant, vessels, pipework construction and for common mechanical engineering purposes. normally DIN1629 standard are manufactured with no limiting working pressure values. working temperature is limited below 300℃. DIN1629 is the standard ... Read More
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Spiral Submerged Arc Welded (SSAW) Steel Pipe is suitable for transporting large quantities of oil and gas. Here is a article of Spiral Submerged Arc Welded Pipe Market Analysis. Read on to learn more. Why is the demand in the USA spiral submerged arc welded pipe market rising? - Emergence of mature ... Read More
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hardening: hardening is a metallurgical metalworking process used to increase the hardness of a metal. the hardness of a metal is directly proportional to the uniaxial yield stress at the location of the imposed strain. a harder metal will have a higher resistance to plastic deformation than a less ... Read More
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China National Offshore Oil Corporation, one of the country's top three oil and gas producers, said on Monday that its newly discovered bozhong 13-2 oil and gas field in the bohai sea contains proven geological reserves of 100 million metric tons of oil and gas equivalent, making it one of biggest ... Read More
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