Industeel SIRIUS S12 20% Cr - 1.8% Si Heat Resistant Steel

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Industeel SIRIUS S12 20% Cr - 1.8% Si Heat Resistant Steel
Categories:	Metal; Ferrous Metal; Austenitic; Stainless Steel; T 300 Series Stainless Steel
Material Notes:	Description: CLI SIRIUS S12 grade is an austenitic stainless steel containing 20% Cr, 1.8 % Si and 12% Ni. The low nickel content combined with high chromium and high silicon contents provide good resistance to high temperature oxidation, even in sulphur containing gases The structure stability of the grade is enhanced compared to other more alloyed heat resistant steels. The alloy is designed to resist in oxidizing atmospheres up to 1000°C (1832°F). In cyclic conditions, a maximum temperature of 950°C (1742°F) should be considered. The alloy performs much better than 304 H and 304 N grades. Information provided by manufacturer.
Key Words:	EN 10095 X15 Cr Ni Si 20-12 - 1.4828, AFNOR Z10 CNS 20.12, DIN W. Nr 1. 4828, ASTM Type (302 B)
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Physical Properties	Original Value	Comments

Density	7.90 g/cc

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	540 MPa	Typical after Solution Annealing
Tensile Strength, Yield	245 MPa @Strain 0.2 %	Typical after Solution Annealing
	265 MPa @Strain 1 %	Typical after Solution Annealing
Elongation at Break	40 %	Typical
Creep Strength	140 MPa @Temperature 600 °C, Time 3.60e+6 sec
Modulus of Elasticity	200 GPa
Poissons Ratio	0.333	Calculated
Shear Modulus	75.0 GPa @Temperature 20.0 °C

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000900 ohm-cm @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	16.0 µm/m-°C @Temperature 20.0 - 100 °C
	17.0 µm/m-°C @Temperature 20.0 - 200 °C
	18.0 µm/m-°C @Temperature 20.0 - 400 °C
	18.5 µm/m-°C @Temperature 20.0 - 600 °C
Specific Heat Capacity	0.500 J/g-°C @Temperature 20.0 °C
Thermal Conductivity	15.0 W/m-K @Temperature 20.0 °C

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.10 %
Chromium, Cr	20 %
Iron, Fe	66.1 - 66.2 %	As remainder
Nickel, Ni	12 %
Silicon, Si	1.8 %

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NINDUST27 / 17565

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