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Some steels, such as bearing steel, heat-resistant steel, ultra-high strength missile and aircraft steel, and rotor steel, all have higher quality requirements and strict composition control than general carbon steel and ordinary low alloy steel.



The production of special steel requires the ability of vacuum induction or electric remelting. Because the production of ultra pure steel requires longer continuous smelting and larger alloy addition, as well as the necessary facilities for secondary heating of steel in secondary smelting.



These methods provide the following benefits:



The content of gases (such as hydrogen, nitrogen, and oxygen) is greatly reduced.



The purity has been improved, that is, there are fewer non-metallic inclusions.


Due to the sequential melting and solidification of steel, the looseness and segregation in the center of the steel ingot caused by casting are eliminated.


The hot deformation workability of metals has been improved.


Improved the mechanical properties of remelted steel at room and high temperatures, such as plasticity, impact resistance, fatigue resistance, and creep fracture strength.


310S is austenitic chromium nickel stainless steel with excellent oxidation resistance and corrosion resistance. Due to the higher percentage of chromium and nickel, 310S has much better creep strength and can continue to operate at high temperatures, demonstrating good high temperature resistance. Mainly suitable for making various furnace components, with a maximum temperature of 1300 ℃ and a continuous usage temperature of 1150 ℃. Such as materials for furnaces, materials for automotive purification devices, etc.


600N06600 is a non-magnetic nickel chromium based alloy. Mainly used for high temperature resistance and atmospheric corrosion resistance, it can be used up to 1093 ℃ in the atmosphere. Due to its nickel based alloy, this alloy is resistant to stress corrosion and is widely used in the cooling system of nuclear reactors. Main uses:nuclear reactor cooling system, heating furnace, carburizing basket and fasteners, heat treatment fixtures.