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USA UNS S30215
ASTM
Specification or Grade		 302B
Corresponding Standard ASTM A276/A276M-2017
Standard Specification for Stainless Steel Bars and Shapes
Classification Austenitic Stainless Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni N
Minimum Value - 2 - - - 17 8 -
Maximum Value 0.15 3 2 0.045 0.03 19 10 0.1
Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Reduction of Area
ψ
%
all Annealing - Hot Finish Rolling (A) ≥515 ≥205 ≥40 ≥50
≤12.7 Annealing - Cold Precision Rolling (A) ≥620 ≥310 ≥30 ≥40
＞12.7 Annealing - Cold Precision Rolling (A) ≥515 ≥205 ≥30 ≥40
Approximate Comparison Table Austenitic Stainless Steel
China Japan United States International Organization for Standardization European Standard
GB ISC JIS UNS ISO Numerical Grade Numerical Grade
12Cr18Ni9Si3
(1Cr18Ni9Si3) 		S30240 SUS302B S30215 X12CrNiSi18-9-3 4326-302-15-I (1.4326)

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