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	Metric	English	Comments

Density	8.00 g/cc	0.289 lb/in³	RT

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	610 MPa	88500 psi	Outokumpu Typical, Hot Rolled Plate (Quarto); EN 10002-1
Tensile Strength, Yield	220 MPa @Strain 0.2 %	31900 psi @Strain 0.2 %	EN min., RT; EN 10002-1
	300 MPa @Strain 0.2 %	43500 psi @Strain 0.2 %	Outokumpu Typical, Hot Rolled Plate (Quarto); EN 10002-1
	340 MPa @Strain 1 %	49300 psi @Strain 1 %	Outokumpu Typical, Hot Rolled Plate (Quarto); EN 10002-1
	115 MPa @Strain 0.2 %, Temperature 400 °C	16700 psi @Strain 0.2 %, Temperature 752 °F	EN min.; EN 10002-5
	147 MPa @Strain 0.2 %, Temperature 200 °C	21300 psi @Strain 0.2 %, Temperature 392 °F	EN min.; EN 10002-5
	172 MPa @Strain 0.2 %, Temperature 100 °C	24900 psi @Strain 0.2 %, Temperature 212 °F	EN min.; EN 10002-5
Elongation at Break	50 %	50 %	Outokumpu Typical, Hot Rolled Plate (Quarto); EN 10002-1
Modulus of Elasticity	200 GPa	29000 ksi	RT
	172 GPa @Temperature 400 °C	24900 ksi @Temperature 752 °F

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000850 ohm-cm	0.0000850 ohm-cm	RT

Thermal Properties	Metric	English	Comments
CTE, linear	16.0 µm/m-°C @Temperature 100 °C	8.89 µin/in-°F @Temperature 212 °F
	17.5 µm/m-°C @Temperature 400 °C	9.72 µin/in-°F @Temperature 752 °F
Specific Heat Capacity	0.500 J/g-°C	0.120 BTU/lb-°F	RT
Thermal Conductivity	14.0 W/m-K	97.2 BTU-in/hr-ft²-°F	RT
	20.0 W/m-K @Temperature 400 °C	139 BTU-in/hr-ft²-°F @Temperature 752 °F

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

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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