Thermal power plants

GB 3087 Grade 20 refers to a specific grade of seamless carbon steel boiler and superheater tubes according to the Chinese National Standard GB 3087. These tubes are designed for high-pressure and high-temperature applications, commonly used in boilers and heat exchangers.

GB/T 18248 seamless gas cylinder tube is a kind of seamless steel tube for gas cylinders.

P195GH is a low-alloy steel commonly used in the manufacture of high-temperature and high-pressure vessels and pipes.

S32750, a duplex stainless steel variety, is used in heat exchangers and cold showers and devices that are resistant to seawater, high temperature and concentrated nitric acid in oil refining, fertilizer, papermaking, petroleum, chemical and other industries.