022Cr25Ni7Mo4N — stainless Steel: Composition, Properties & Applications
Also known as: 022Cr25Ni7Mo4N
Super-duplex, exceptional pitting resistance. (GB/T 20878; equiv UNS S32750 / EN 1.4410 / ASTM A182 F53 / GB 022Cr25Ni7Mo4N). Nominal values—confirm mill certificate.
CHEMICAL COMPOSITION
C:≤0.030;Cr:24.0-26.0;Ni:6.0-8.0;Mo:3.0-5.0;N:0.24-0.32
MECHANICAL PROPERTIES
Tensile:≥800 MPa;Yield:≥550 MPa;Elong:≥15%
TYPICAL APPLICATIONS
超级双相，极强耐点蚀。,"Plate
AVAILABLE FORMS
Bar
STANDARDS & EQUIVALENT GRADES
T 20878 022Cr25Ni7Mo4N; ASTM A182 F53 / GB 022Cr25Ni7Mo4N; Heat input and interpass must be controlled to keep the ferrite/austenite balance; avoid exposure 300–400 °C (sigma) and use low carbon. Sensitive to chloride SCC above ≈60 °C.
HEAT TREATMENT
Duplex stainless steel with a mixed austenite/ferrite structure giving roughly twice the yield strength of austenitic grades plus excellent chloride resistance. Used in desalination, offshore, pulp & paper, heat exchangers and chemical tankage.
PROCESSING PRECAUTIONS
Solution anneal 1020–1100 °C and rapid quench; reheating near 300–400 °C (sigma phase) and 475 °C embrittlement zones must be avoided.
SOURCE & SUPPLY
Shanxi Youte Steel stocks 022Cr25Ni7Mo4N in bars, plates, pipes and forgings with mill test certificates, cut-to-length service and export packaging. Contact our team for quotations and technical data sheets.
Super-duplex, exceptional pitting resistance. (GB/T 20878; equiv UNS S32750 / EN 1.4410 / ASTM A182 F53 / GB 022Cr25Ni7Mo4N). Nominal values—confirm mill certificate.
CHEMICAL COMPOSITION
C:≤0.030;Cr:24.0-26.0;Ni:6.0-8.0;Mo:3.0-5.0;N:0.24-0.32
MECHANICAL PROPERTIES
Tensile:≥800 MPa;Yield:≥550 MPa;Elong:≥15%
TYPICAL APPLICATIONS
超级双相，极强耐点蚀。,"Plate
AVAILABLE FORMS
Bar
STANDARDS & EQUIVALENT GRADES
T 20878 022Cr25Ni7Mo4N; ASTM A182 F53 / GB 022Cr25Ni7Mo4N; Heat input and interpass must be controlled to keep the ferrite/austenite balance; avoid exposure 300–400 °C (sigma) and use low carbon. Sensitive to chloride SCC above ≈60 °C.
HEAT TREATMENT
Duplex stainless steel with a mixed austenite/ferrite structure giving roughly twice the yield strength of austenitic grades plus excellent chloride resistance. Used in desalination, offshore, pulp & paper, heat exchangers and chemical tankage.
PROCESSING PRECAUTIONS
Solution anneal 1020–1100 °C and rapid quench; reheating near 300–400 °C (sigma phase) and 475 °C embrittlement zones must be avoided.
SOURCE & SUPPLY
Shanxi Youte Steel stocks 022Cr25Ni7Mo4N in bars, plates, pipes and forgings with mill test certificates, cut-to-length service and export packaging. Contact our team for quotations and technical data sheets.
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