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Home Material JIS G 4312-2019
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Grade SUH21
Corresponding Standard JIS G 4312-2019
Heat-Resistant Steel Plate, Sheet and Strip
Classification Ferritic Stainless Steel
Properties Corrosion Resistance
SUH21 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Al
Minimum Value - - - - - 17 - 2
Maximum Value 0.1 1.5 1 0.04 0.03 21 0.6 4
SUH21 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
Plates, strips Annealing ≥440 ≥245 ≥15 ≤210
1 Approximate Comparison Table Heat-Resistant Stainless Steel
Japan United States Germany France European Standard United Kingdom
JIS ASTM UNS DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade BS EN/BS
SUH 21 430 S43000 X10CrAl 13
X10CrAlSi 13 		1.4724
1.4724 		Z10C 13 X10CrAlSi 13 1.4724 403S17
2 Approximate Comparison Table Ferritic Stainless Steel
Japan International Organization for Standardization European Standard
JIS ISO Numerical Grade Numerical Grade
SUH21 X8CrAl19-3 4764-442-72-J (1.4764)

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