Chemical composition

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%) Ni(%)
¨Q0.15 ¨Q1.0 ¨Q2.0 ¨Q0.2 ¨Q0.06 17.0-19.0 ¨R0.15 8.0-10.0

Applications

  • CNS 303Se Stainless Steel is non-magnetic and austenitic alloy modified version of Stainless Steel grade 303 where sulfur is substituted for selenium to enable better machinability.
    303Se should be considered for use in applications such as shafts, valve bodies, valves, valve trim, and fittings. This steel possesses non-galling properties that make disassembly of parts easy­ and help to avoid scratching or galling in moving parts.

Country Code

  • CNS

Standard

  • 03Se


Steel Type
303Se

Heat treatment
303Se is non hardenable by heat treatment

Relate Steel Type

Steel Type Country Code C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%)
303Se CNS ¨Q0.15 ¨Q1.0 ¨Q2.0 ¨Q0.2 ¨Q0.06 17.0-19.0 ¨R0.15
Y1Cr18-Ni9Se GB ¨Q0.15 ¨Q1.0 ¨Q2.0 ¨Q0.2 ¨Q0.06 17.0-19.0
SUS303Se JIS ¨Q0.15 ¨Q1.0 ¨Q2.0 ¨Q0.2 ¨Q0.06 17.0-19.0
303Se AISI ¨Q0.15 ¨Q1.0 ¨Q2.0 ¨Q0.2 ¨Q0.06 17.0-19.0