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S30432 stainless steel is a heat-resistant, high-strength austenitic stainless steel that is improved on the basis of ordinary austenitic stainless steel 304H. It is mainly used in high temperature and high pressure environments, especially in key components of supercritical power station boilers.
S30432 (Super 304H) is a high-performance, heat-resistant austenitic stainless steel developed by adding copper and niobium and optimizing carbon and nitrogen content. Its core value lies in its exceptionally high-temperature endurance strength, creep strength, and outstanding resistance to high-temperature steam oxidation. It is a key and preferred material for superheaters, reheaters, and high-temperature piping in modern supercritical and ultra-supercritical thermal power generation boilers, crucial for improving power plant thermal efficiency, reducing coal consumption, and minimizing emissions. While relatively expensive and requiring stringent welding and other process requirements, its exceptional high-temperature performance makes it irreplaceable in extreme service conditions.
C | Si | Mn | P | S | Ni | Cr | B | N |
≤0.03 | ≤1.0 | ≤2.0 | ≤0.04 | ≤0.03 | 8―11 | 17―20 | 0.001—0.01 | ≤0.1 |
tensile strength( Mpa) | 0.2% yield strength ( Mpa) | Elongation A5(%) | |
515—730 | 205 | 40 |
Density: 7.90g/cm3
S30432 stainless steel is a heat-resistant, high-strength austenitic stainless steel that is improved on the basis of ordinary austenitic stainless steel 304H. It is mainly used in high temperature and high pressure environments, especially in key components of supercritical power station boilers.
S30432 (Super 304H) is a high-performance, heat-resistant austenitic stainless steel developed by adding copper and niobium and optimizing carbon and nitrogen content. Its core value lies in its exceptionally high-temperature endurance strength, creep strength, and outstanding resistance to high-temperature steam oxidation. It is a key and preferred material for superheaters, reheaters, and high-temperature piping in modern supercritical and ultra-supercritical thermal power generation boilers, crucial for improving power plant thermal efficiency, reducing coal consumption, and minimizing emissions. While relatively expensive and requiring stringent welding and other process requirements, its exceptional high-temperature performance makes it irreplaceable in extreme service conditions.
C | Si | Mn | P | S | Ni | Cr | B | N |
≤0.03 | ≤1.0 | ≤2.0 | ≤0.04 | ≤0.03 | 8―11 | 17―20 | 0.001—0.01 | ≤0.1 |
tensile strength( Mpa) | 0.2% yield strength ( Mpa) | Elongation A5(%) | |
515—730 | 205 | 40 |
Density: 7.90g/cm3
