Sandvik SAF 2304 Seamless tube and pipe

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Sandvik SAF 2304 Seamless tube and pipe
Categories:	Metal; Ferrous Metal; Duplex; Stainless Steel
Material Notes:	Duplex stainless steel, UNS S32304 Sandvik SAF 2304TM is a duplex stainless steel (austenitic-ferritic) with a low carbon content. The material is characterized by the following properties: very good resistance to stress corrosion cracking. good resistance to general corrosion an pitting. high strength - approximately twice as high proof strength as austenitic stainless steels. physical properties that offer design advantages. ease of fabrication and good toughness. good weldability Information provided by Sandvik UNS S32304; EN 1.4362
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Physical Properties	Original Value	Comments

Density	7.80 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	<= 30.5
Tensile Strength, Ultimate	600 - 820 MPa
Tensile Strength, Yield	>= 400 MPa @Strain 0.2 %
	>= 450 MPa @Strain 1 %
	>= 270 MPa @Strain 0.2 %, Temperature 300 °C	Wt>4 mm
	>= 290 MPa @Strain 0.2 %, Temperature 200 °C	Wt>4 mm
	>= 310 MPa @Strain 0.2 %, Temperature 300 °C	Wt<4 mm
	>= 340 MPa @Strain 0.2 %, Temperature 200 °C	Wt<4 mm
Elongation at Break	>= 25 %
	>= 25 % @Thickness 50.8 mm
Modulus of Elasticity	200 GPa
	180 GPa @Temperature 300 °C
	186 GPa @Temperature 200 °C
Charpy Impact	175 J @Temperature -50.0 °C	welded
	275 J @Temperature -50.0 °C	unwelded

Thermal Properties	Original Value	Comments
CTE, linear	13.5 µm/m-°C @Temperature 30.0 - 100 °C
	14.0 µm/m-°C @Temperature 30.0 - 200 °C
	14.5 µm/m-°C @Temperature 30.0 - 400 °C
Specific Heat Capacity	0.490 J/g-°C @Temperature 20.0 °C
	0.530 J/g-°C @Temperature 200 °C
	0.590 J/g-°C @Temperature 400 °C
Thermal Conductivity	16.0 W/m-K @Temperature 20.0 °C
	17.0 W/m-K @Temperature 200 °C
	21.0 W/m-K @Temperature 400 °C

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.030 %
Chromium, Cr	22.5 %
Iron, Fe	69.8 %	As Balance
Manganese, Mn	<= 2.0 %
Nickel, Ni	4.5 %
Nitrogen, N	0.10 %
Phosphorus, P	<= 0.035 %
Silicon, Si	<= 1.0 %
Sulfur, S	<= 0.015 %

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NSANDV247 / 19141

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