X2CrNiMoSi18-5-3 1.4424 - EN 10297(2)-2005

Grade	X2CrNiMoSi18-5-3
European Standard Steel Grade	1.4424
Corresponding Standard	EN 10297(2)-2005 Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
Classification	Duplex Stainless Steel
Properties	Corrosion Resistance

X2CrNiMoSi18-5-3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N
Minimum Value	-	1.4	1.2	-	-	18	4.5	2.5	0.05
Maximum Value	0.03	2	2	0.035	0.015	19	5.2	3	0.1

X2CrNiMoSi18-5-3 Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %
+AT	≥700	Rp0.2: ≥480 Rp1.0: ≥490	≥30L；≥30T

Approximate Comparison Table Austenitic-Ferritic Stainless Steel

United States	International Organization for Standardization		European Standard
UNS	ISO	Numerical Grade	Numerical Grade
S31500	X2CrNiMoSiMnN19-5-3-2-2	4424-315-00-I	1.4424

X2CrNiMoSi18-5-3 Corresponding Standards(Same grade name, different standards)

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