Outokumpu 4438 High Performance Austenitic Stainless Steel

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Outokumpu 4438 High Performance Austenitic Stainless Steel
Categories:	Metal; Ferrous Metal; Austenitic; Stainless Steel
Material Notes:	Very good corrosion resistance, weldable, and resistant to sensitization. Available in hot rolled plate (Quarto), hot rolled strip/sheet (CPP), cold rolled strip/sheet, cold rolled narrow strip, bar, and rod forms.
Key Words:	EN 1.4438; ASTM 317L; JIS SUS 317L
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Physical Properties	Original Value	Comments

Density	8.00 g/cc	RT

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	610 MPa	Outokumpu Typical, Hot Rolled Plate (Quarto); EN 10002-1
Tensile Strength, Yield	220 MPa @Strain 0.2 %	EN min., RT; EN 10002-1
	300 MPa @Strain 0.2 %	Outokumpu Typical, Hot Rolled Plate (Quarto); EN 10002-1
	340 MPa @Strain 1 %	Outokumpu Typical, Hot Rolled Plate (Quarto); EN 10002-1
	115 MPa @Strain 0.2 %, Temperature 400 °C	EN min.; EN 10002-5
	147 MPa @Strain 0.2 %, Temperature 200 °C	EN min.; EN 10002-5
	172 MPa @Strain 0.2 %, Temperature 100 °C	EN min.; EN 10002-5
Elongation at Break	50 %	Outokumpu Typical, Hot Rolled Plate (Quarto); EN 10002-1
Modulus of Elasticity	200 GPa	RT
	172 GPa @Temperature 400 °C

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000850 ohm-cm	RT

Thermal Properties	Original Value	Comments
CTE, linear	16.0 µm/m-°C @Temperature 100 °C
	17.5 µm/m-°C @Temperature 400 °C
Specific Heat Capacity	0.500 J/g-°C	RT
Thermal Conductivity	14.0 W/m-K	RT
	20.0 W/m-K @Temperature 400 °C

Component Elements Properties	Original Value	Comments
Carbon, C	0.020 %
Chromium, Cr	18.2 %
Iron, Fe	64.98 %
Molybdenum, Mo	3.1 %
Nickel, Ni	13.7 %

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