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The tensile strength of ST42 Carbon Steel Pipe shall not be less than 42kgf/mm2, which is 420MPa.ST42 Carbon Steel Pipe is a German standard seamless steel pipe, which is widely used. German standard seamless steel pipes for general purposes are rolled from ordinary carbon structural steel, low alloy structural steel or alloy structural steel, with the largest output, and are mainly used as pipes or structural parts for fluid transportation .
A179 Purpose: It is applicable to steel pipes for tubular heat exchangers, condensers and similar heat transfer equipment. The chemical composition of the steel is as follows: Carbon: 0.06%~0.18%, Manganese: 0.27%~0.63%, Phosphorus: 0.035%, Sulfur: MAX 0.035%.
1. For pipelines. Water, gas pipes, steam pipes, and oil and gas trunk lines. 2. Tubes for thermal equipment. Superheating pipes, high temperature and high-pressure boiler pipes for locomotive boilers. 3. For the machinery industry. Aviation structural tubes, automobile axle tubes, tractor structural tubes, etc.
A106 GrB strength grade 415MPa. ASTM A106Gr. B seamless steel pipe is a kind of low carbon steel widely used in petroleum, chemical and boiler industries. The material has good mechanical properties.
Seamless steel pipe for high-temperature operation ASTM A106 GR. B, steel grade: SA106B,
Specification: 1/4 ″ - 28 ″, 13.7-711.2mm Steel grade: GRAD B,
Standard: ASTM A106 - American Society for Testing and Materials.
Main application: used for making oil and natural gas transmission pipelines. API 5L generally refers to pipeline steel plate -- API 5L pipeline steel plate. When the pipeline steel plate is processed into large-diameter pipeline steel pipe, the oil, steam and water pumped out of the ground are transported to the oil and natural gas industrial enterprises through pipeline pipes.
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