05Cr15Ni5Cu4Nb — stainless Steel: Composition, Properties & Applications

Also known as: 05Cr15Ni5Cu4Nb
High transverse-toughness 17-4PH modification. (GB/T 20878; equiv ASTM XM-12 / AMS 5659). Nominal values—confirm mill certificate.

CHEMICAL COMPOSITION
C:≤0.07;Si:≤1.00;Mn:≤1.00;P:≤0.040;S:≤0.030;Cr:14.0-15.5;Ni:3.5-5.5;Cu:2.5-4.5;Nb:0.15-0.45

MECHANICAL PROPERTIES
Tensile(H1100):≥1070 MPa;Yield(H1100):≥1000 MPa;Elong(H1100):≥14%

TYPICAL APPLICATIONS
高横向韧性的17-4PH改良。,"Bar

AVAILABLE FORMS
Forging"

STANDARDS & EQUIVALENT GRADES
T 20878 05Cr15Ni5Cu4Nb; ASTM XM-12 / AMS 5659

HEAT TREATMENT
Annealed at 780–850 °C and air cooled; stabilize at 600–800 °C to avoid 475 °C embrittlement; not hardenable by heat treatment.

PROCESSING PRECAUTIONS
Avoid welding in the 475 °C embrittlement and sigma-phase ranges; use matched filler and minimize heat input. Good resistance to stress-corrosion cracking.

SOURCE & SUPPLY
Shanxi Youte Steel stocks 05Cr15Ni5Cu4Nb 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.