Sandvik SAF 2205 Spring Wire

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Sandvik SAF 2205 Spring Wire
Categories:	Metal; Ferrous Metal; Duplex; Special-Purpose Steel; Stainless Steel
Material Notes:	Sandvik SAF 2205 is a duplex stainless steel (austenitic-ferritic). It is characterized by: high resistance to stress corrosion cracking in chloride-bearing environments high resistance to stress corrosion cracking in environments containing hydrogen sulphide high resistance to general corrosion, pitting, and crevice corrosion high resistance to erosion corrosion and corrosion fatigue physical properties that offer design advantages Service temperature: -100 to 300°C (-150 to 570°F) Information provided by Sandvik UNS S31803; EN 1.4462
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Physical Properties	Original Value	Comments

Density	7.85 g/cc

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	1350 - 1550 MPa @Diameter 5.00 - 8.00 mm
	2150 - 2350 MPa @Diameter 0.150 - 0.200 mm
Tensile Strength, Yield	1235 MPa @Diameter 5.00 - 8.00 mm, Strain 0.2 %
	1915 MPa @Diameter 0.150 - 0.200 mm, Strain 0.2 %
Modulus of Elasticity	200 GPa	as delivered
	205 GPa	as tempered
Poissons Ratio	0.30	Calculated
Shear Modulus	77.0 GPa	as received
	79.0 GPa	as tempered

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000840 ohm-cm @Temperature 50.0 - 100 °C
Magnetic Permeability	60	µ, annealed
	120	µ, cold drawn

Thermal Properties	Original Value	Comments
CTE, linear	12.0 µm/m-°C @Temperature 20.0 - 100 °C
	12.8 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.500 J/g-°C @Temperature 50.0 - 100 °C
Thermal Conductivity	14.0 W/m-K @Temperature 20.0 °C
	19.0 W/m-K @Temperature 300 °C
Maximum Service Temperature, Air	300 °C
Minimum Service Temperature, Air	-100 °C

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.030 %
Chromium, Cr	22 %
Iron, Fe	67.5 %	as balance
Manganese, Mn	1.5 %
Molybdenum, Mo	3.2 %
Nickel, Ni	5.2 %
Nitrogen, N	0.17 %
Phosphorus, P	<= 0.030 %
Silicon, Si	0.40 %
Sulfur, S	<= 0.015 %

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NSANDV271 / 19165

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