The high-pressure boiler steel elbow fittings are produced from high-pressure boiler pipes and plates
High-pressure and above steam boiler steel pipes. These boiler pipes work under high temperature and high pressure. The pipe will also be oxidized and corroded under the action of high-temperature flue gas and water vapor, so the steel pipe is required to have high durability, high oxidation resistance, and good organizational stability.
Seamless steel pipes for geological drilling and oil drilling control; use drilling rigs to drill wells for the exploration of underground rock structure, groundwater, oil, natural gas, and mineral resources.
Seamless steel pipes for geological drilling control and oil drilling are the main drilling equipment, which mainly includes the core outer tube, the core inner tube, casing, drill pipe, etc. Because drilling pipes need to be deep into the formation depth of several kilometers, the working conditions are extremely complex. The drill pipe is subjected to stress such as tension, compression, bending, torsion, and uneven impact load, and is also subject to mud and rock wear. Therefore, pipe materials are required It must have sufficient strength, hardness, wear-resistance, and impact toughness. The steel used for steel pipes is indicated by “DZ” (Geological Chinese Pinyin prefix) plus the number one to represent the yield point of the steel. Steel pipes are delivered in a heat-treated state.
Petroleum cracking pipes: seamless pipes for furnace pipes, heat exchanger pipes, and pipelines used in petroleum refineries. Commonly used high-quality carbon steel (10, 20), alloy steel (12CrMo, 15CrMo), heat-resistant steel (12Cr2Mo, 15Cr5Mo), stainless steel (1Cr18Ni9, 1Cr18Ni9Ti) manufacturing. In addition to the certified chemical composition and various mechanical properties of the steel pipe, it is also necessary to ensure the water pressure, flattening, flaring, and other tests, as well as surface quality and non-destructive inspection. The steel pipe is delivered under heating treatment.
Stainless steel pipe: Hot-rolled and cold-rolled stainless steel pipes of various stainless steels are widely used in petroleum and chemical equipment pipelines and stainless steel structural parts for various purposes. In addition to ensuring chemical composition and mechanical properties, they are used as steel pipes that can withstand fluid pressure. To ensure that the water pressure tests are qualified. All kinds of special steel pipes shall be guaranteed according to the stipulated conditions.