015Cr20Ni18Mo6CuN — stainless Steel: Composition, Properties & Applications

Also known as: 015Cr20Ni18Mo6CuN
6Mo super-austenitic, exceptional pitting resistance. (GB/T 20878; equiv UNS S31254 / EN 1.4547). Nominal values—confirm mill certificate.

CHEMICAL COMPOSITION
C:≤0.020;Cr:19.5-20.5;Ni:17.5-18.5;Mo:6.0-6.5;N:0.18-0.22;Cu:0.50-1.00

MECHANICAL PROPERTIES
Tensile:≥650 MPa;Yield:≥300 MPa

TYPICAL APPLICATIONS
6Mo超级奥氏体，极强耐点蚀。,"Plate

AVAILABLE FORMS
Tube"

STANDARDS & EQUIVALENT GRADES
T 20878 015Cr20Ni18Mo6CuN; UNS S31254 / EN 1.4547

HEAT TREATMENT
Solution anneal 1010–1150 °C followed by rapid water quench to retain austenite; not hardenable by heat treatment. Sensitization avoided by low carbon or stabilizers (Ti/Nb).

PROCESSING PRECAUTIONS
Weld with low-carbon or stabilized filler (e.g., 316L, 347) to avoid sensitization; passivate after fabrication. Not hardenable, but work-hardens rapidly — use sharp tools and rigid setups. Avoid chloride contact for 304 in warm service; specify 316/317 for marine or aggressive media.

SOURCE & SUPPLY
Shanxi Youte Steel stocks 015Cr20Ni18Mo6CuN 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.