Green sells 15CrMoG alloy structural steel pipe high pressure seamless steel pipe

材质：

合金结构钢管

规格：

常规齐全

品牌：

国产进口

The microstructure of r-steel in its normal delivery state is ferrite plus pearlite. During the long-term operation of r-steel in the operating temperature range of ℃, the spheroidization of pearlite and the redistribution of alloying elements between solid solutions and carbides will occur. Due to changes in the carbide phase structure, the thermal strength and mechanical properties of R steel gradually decrease as the degree of pearlite spheroidization and the degree of depletion of solid solution alloying elements increase, causing the material to gradually deteriorate or even fail.
Steel is a type of steel widely used in the electric power industry. It has high thermal strength properties when used at °C. When the operating temperature is greater than ℃, its thermal strength performance is significantly reduced. Usually r steel is mainly used for steam guide pipes of medium and high pressure pipelines with steam parameters of ℃, heater pipes with pipe wall temperature of ℃, etc.
The same type of steel in foreign countries includes the former Soviet Union, American brand, Japanese brand B, German brand R, etc.
The microstructure of steel in its normal delivery state is ferrite plus pearlite. During long-term operation of r steel in the working temperature range of ℃, spheroidization of pearlite will occur. The alloying elements between solid solution and carbide will produce Due to redistribution and changes in the carbide phase structure, the thermal strength and mechanical properties of R steel gradually decrease with the increase in the degree of pearlite spheroidization and the degree of depletion of solid solution alloying elements, causing the material to gradually deteriorate or even fail. Therefore, the degree of pearlite spheroidization in the steel structure has long been widely used as one of the important criteria to determine the reliability of this type of steel.
Chemical composition
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