There are many different grades of heat-resistant steel castings, each with its own unique characteristics and scope of application. The following are some common heat-resistant steel casting grades and their use characteristics:
ZG40CR9SI2: This grade of heat-resistant steel castings has the characteristics of low strength at high temperature and good oxidation resistance. Its long-term working load parts have a working temperature of less than 700°C, so it is suitable for the manufacture of crucibles, furnace doors, bottom plates and other components.
ZG30CR18MN12SI2N: This grade of heat-resistant steel castings has the characteristics of high temperature strength and good thermal fatigue resistance. It is suitable for the manufacture of furnace components such as furnace tanks, furnace floors, baskets, conveyor belt guides, support frames, hangers, etc.
ZG35CR26Ni12: This grade of heat-resistant steel castings has the characteristics of high temperature strength and good oxidation resistance. Its composition can be adjusted within the standard range, so it can be widely used in a wide range of furnace components, but it is not suitable for places with rapid temperature changes.
One person and one sentence cheer for the postgraduate entrance examination ZG35CR28NI16: This grade of heat-resistant steel castings has the same mechanical properties as single-phase ZG40CR25Ni12, and has a higher temperature oxidation resistance. It is used in the same way as ZG40CR25NI12 and ZG40CR25NI20, and is suitable for the manufacture of pipes, billet slides, heat treatment furnace rollers, tube carriers, hydrogen conversion tubes, ethylene cracking tubes, and parts that require high creep strength.
In addition to the above grades, there are many other heat-resistant steel casting grades, such as ZG30CR20NI10, ZG45CR28NI16, etc. Each grade has its specific chemical composition and mechanical properties, so it needs to be selected according to the specific operating conditions and requirements when used.