03Х18Н11 — stainless Steel: Composition, Properties & Applications

Also known as: 03Х18Н11
GOST corrosion/heat-resisting steel 03Х18Н11.

CHEMICAL COMPOSITION
C:≤0.08;Si:≤1.00;Mn:≤2.00;Cr:16.0-18.0;Ni:10.0-14.0;Mo:2.0-3.0;P:≤0.045;S:≤0.030

MECHANICAL PROPERTIES
Tensile:≥520 MPa;Yield:≥210 MPa;Elongation:≥40%

TYPICAL APPLICATIONS
Corrosion/heat parts

AVAILABLE FORMS
Bar,Plate

STANDARDS & EQUIVALENT GRADES
GOST 03Х18Н11

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 03Х18Н11 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.