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May I ask why the element “Re” is included in 09Cr2AIMoRe?
“Re” refers to Rhenium, a metal element with a melting point of 3180°C; it is one of the metals with high melting points. It is used in the manufacture of light bulb filaments, the exteriors of satellites and rockets, as well as shielding plates for nuclear reactors. In the chemical field, it is utilized as a catalyst.
Could you provide a detailed explanation of 09Cr2AIMoRe?
09Cr2AIMoRe: It is used in the new catalytic unit we have built with an annual capacity of 1.4 million tons; many of the heat exchangers in this unit are made from this material. Could you please provide detailed information on the properties of this material, especially with regard to its corrosion resistance?
The purpose of 09Cr2AIMoRE is to improve the welding properties and corrosion resistance of the material. It is mainly used in petrochemical plants to withstand humid hydrogen sulfide stress corrosion environments. 09Cr2AIMoRE is a low-alloy steel, whose main feature lies in the micro-alloying effect of rare earth elements; it not only helps with desulfurization and deoxidation but also effectively controls the size and shape of residual S and O inclusions in the steel.
09Gr2AlMoRe is a steel grade produced by Xining Special Steel for resisting hydrogen sulfide corrosion, where Re stands for rare earth. Mainly used as heat exchange tubes in heat exchangers in petrochemical engineering.