Grade Y12Cr18Ni9Se
China ISC S30327
Old Grade
Corresponding Standard GB /T 1220-2007
Stainless Steel Bars
Classification Austenitic Stainless Steel
Y12Cr18Ni9Se Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Se
Minimum Value - - - - - 17 8 0.15
Maximum Value 0.15 1 2 0.2 0.06 19 10 -
Y12Cr18Ni9Se Mechanical Properties
diameter
d
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
d≤180 Solid Solution Treatment ≥520 ≥205 ≥40 ≥50 HBW:≤187
HRB:≤90
HV:≤200
• This does not apply to flat bars, but if required by the buyer, it shall be determined through negotiation between the supplier and the buyer.
1 Approximate Comparison Table
China Taiwan, China Japan South Korea United States Russia United Kingdom
GB ISC CNS JIS KS ASTM UNS GOST BS EN/BS
Y12Cr18Ni9Se S30327 303Se SUS 303Se STS 303Se 303Se S30323 12Х18Н10Е 303S41
2 Approximate Comparison Table
China Japan United States International Organization for Standardization European Standard
GB ISC JIS UNS ISO Numerical Grade Numerical Grade
Y12Cr18Ni9Se S30327 SUS303Se S30323 X12CrNiSe18-9 4625-303-23-X 1.4625
Y12Cr18Ni9Se Corresponding Standards(Same grade name, different standards)

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