10Cr18Ni12

Stainless Steel

10Cr18Ni12

High-Ni, low work-hardening rate. (GB/T 20878; equiv ASTM 305 / EN 1.4303 / JIS SUS305). Nominal values—confirm mill certificate.

Chemical Composition (%)

C0.12
CR17
NI10.5

Mechanical Properties

Tensile:≥500 MPa;Yield:≥170 MPa

Chinese Standard

T 20878 10Cr18Ni12

Equivalent Standards

ASTM 305

Equivalent Grades

EN 1.4303 / JIS SUS305

Applications

高镍低加工硬化。,"Sheet

Available Forms

Wire"

Uses

Austenitic stainless steel with excellent corrosion resistance, formability and weldability; non-magnetic in annealed condition. High nickel (≈11.75%) stabilises the austenite and improves toughness and pitting resistance. Used in food processing, chemical plant, architecture, heat exchangers, kitchenware and medical devices.

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).

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.

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