When discussing the best heat resistant steel for critical high-temperature applications, two grades consistently stand out: SA387GR91CL2 (P91) and SA387GR22 (12Cr2Mo1R). These alloys offer superior solutions for demanding environments in power generation and chemical processing.
SA387GR91CL2 (P91 for short) is recognized as one of the best heat resistant steels due to its exceptional oxidation and corrosion resistance under high-temperature steam, combined with high impact toughness, stable durable plasticity, and thermal strength. It is extensively used in critical components for subcritical and supercritical boilers, as well as nuclear power heat exchangers.
SA387GR22 (GB 12Cr2Mo1R) is a pearlitic heat-resistant steel known for its high thermal strength and oxidation resistance. It is primarily selected for pressure vessel equipment operating in high-temperature, high-pressure hydrogen environments, making it a top choice for hydrogenation equipment in the oil refining and chemical industries.
The products from LY Steel, supplying these best heat-resistant steel grades, have been successfully applied on a large scale across these industries.
