Steel casting GS24Mn6
A technology of steel castings and elements, applied in the field of steel castings manufacturing, can solve the problems of impact toughness decline, impact toughness requirements are difficult to meet, grains cannot meet tempered sorbite grain size requirements, etc., to achieve broad development Prospects, effects of improving welding performance
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[0028] Example 1: From the corresponding relationship between chemical composition and mechanical properties, the strength performance index is proportional to the content of carbon, silicon and manganese (see figure 1 , figure 2 ),From figure 1 The effect of carbon content on the strength of steel can be seen. The carbon content has a very large impact on the strength. As the carbon content increases, the tensile strength and hardness indicators increase significantly, while the plasticity and toughness indicators decrease, and the low temperature toughness of castings Decrease, the toughness-brittle transition temperature increases (see image 3 ); Although the silicon content is less than 0.60%, the impact on the grain size is not large, and the impact on the impact toughness is also small (see Figure 4 ), but with the increase of silicon content, the impact on the toughness-brittle transition temperature is even greater than that of carbon (see Figure 5 ); Manganese can p...
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