0Cr18Ni9 — alloy Steel: Composition, Properties & Applications

Also known as: 0Cr18Ni9
(YB/T 5059). Nominal values—confirm mill certificate.

CHEMICAL COMPOSITION
C:≤0.08;Si:≤1.00;Mn:≤2.00;P:≤0.045;S:≤0.030;Cr:18.0-20.0;Ni:8.0-10.5

MECHANICAL PROPERTIES
Tensile:≥515 MPa;Yield:≥205 MPa;Elong:≥40%;Hardness:≤201 HB

TYPICAL APPLICATIONS
Austenitic stainless steel with excellent corrosion resistance, formability and weldability; non-magnetic in annealed condition. High nickel (≈9.25%) stabilises the austenite and improves toughness and pitting resistance. Used in food processing, chemical plant, architecture, heat exchangers, kitchenware and medical devices.

AVAILABLE FORMS
Bar,Plate

STANDARDS & EQUIVALENT GRADES
T 5059 0Cr18Ni9

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 0Cr18Ni9 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.