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Home Material ASTM A815/A815M-2024
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USA UNS S44600
Other Names
Corresponding Standard ASTM A815/A815M-2024
Standard Specification for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings
Classification Ferritic Stainless Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni N
Minimum Value - - - - - 23 - -
Maximum Value 0.2 0.75 1.5 0.04 0.03 27 0.5 0.25
Mechanical Properties
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
485~655 ≥275 ≥18 ≤207
1 Approximate Comparison Table Ferritic Heat-Resistant Steel
China Taiwan, China Japan South Korea United States
GB ISC CNS JIS KS ASTM UNS
16Cr25N
(2Cr25N) 		S12550 SUH 446 SUS 446 STR 446 446 S44600
2 Approximate Comparison Table Ferritic Stainless Steel
China Japan United States International Organization for Standardization European Standard
ISC JIS ASTM UNS ISO Numerical Grade EN Numerical Grade
S12550 SUH446 446 S44600 X15CrN26 4749-446-00-I X18CrN28 1.4749
3 Approximate Comparison Table Ferritic Stainless Steel
United States France European Standard
ASTM UNS NF EN/NF EN Numerical Grade
446 S44600 X15CrN26 X18CrN28 1.4749

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