the most common seamless stainless steel tubing is the 300 series of alloys, which are available in varieties of high-performance, corrosion-resistant types and sizes. the 300 series stainless steels are classified as austenitic and are hardenable only by cold working methods. these grades
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 resis
nestled in a karst landform at an average altitude of 600 meters, longchi village in changyang tujia autonomous county endured water shortages for years. zhao lihua, party chief of the village, said finding a water source for the diversion project was challenging because the village w
din 1629 seamless steel pipes application fields are: chemical plant, vessels, pipework construction and for common mechanical engineering purposes. normally din 1629 standard are manufactured with no limiting working pressure values. working temperature is limited below 300℃
china national offshore oil corp, 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 crude
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