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USA UNS S40500
ASTM
Specification or Grade		 405
Corresponding Standard ASTM A479/A479M-2018
Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
Classification Ferritic Stainless Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Al
Minimum Value - - - - - 11.5 - 0.1
Maximum Value 0.08 1 1 0.04 0.03 14.5 0.5 0.3
◎ New designations established in accordance with Practice E527 and SAE J1086 published jointly by ASTM and SAE. See ASTM DS-56C, available from ASTM Headquarters.
Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Reduction of Area
ψ
% 		Hardness
HBW
All specifications Annealing ≥415 ≥170 in 2 in.[50 mm] or 4D
≥ 20		 ≥ 45 ① ≤207
◎ d-diameter, t-thickness
1 Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade SS BS EN/BS
06Cr13Al S11348 405 SUS 405 STS 405 405 S40500 X6CrAl 13 X6CrAl 13
(X7CrAl 13) 		1.4002 Z6CA 13 X6CrAl 13 1.4002 2302 405S17
2 Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
06Cr13Al
(0Cr13Al) 		S11348 405 SUS 405 STR 405 405 S40500 X6CrAl 13
2
ISO 683-13-1986 		X6CrAl 13
(X7CrAl 13) 		1.4002 Z6CA 13 X6CrAl 13 1.4002 1Х20Ю 2302 405S17

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