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4Cr9Si2 Hardware Tool Steel Bar


4Cr9Si2 is mainly used in the manufacture of boilers, steam turbines, power machinery, industrial furnaces and aviation, petrochemical and other industrial sectors working in high temperature parts. In addition to these components require high temperature strength and high temperature oxidation corrosion, according to different purposes also require sufficient toughness, good workability and weldability, and a certain degree of organizational stability. China started producing heat-resisting steel since 1952. After the development of some new low-alloy hot-high-strength steel, so that pearlite hot high-temperature steel working temperature increased to 600 ~ 620 ℃; In addition, also developed some new low-chromium nickel steel.