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Elmet Technologies

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AISI Type 309S (Cb) Stainless Steel
Categories: Metal; Ferrous Metal; Heat Resisting; Stainless Steel; T 300 Series Stainless Steel

Key Words: UNS S30940, ASTM A554, SAE 30309S, austenitic
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Physical PropertiesOriginal ValueComments
Density 8.00 g/cc
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Ultimate 620 MPa
 76.0 MPa
@Temperature 980 °C
 105 MPa
@Temperature 925 °C
 145 MPa
@Temperature 870 °C
 185 MPa
@Temperature 815 °C
 250 MPa
@Temperature 760 °C
 305 MPa
@Temperature 705 °C
 380 MPa
@Temperature 650 °C
 405 MPa
@Temperature 595 °C
 455 MPa
@Temperature 540 °C
 475 MPa
@Temperature 480 °C
 495 MPa
@Temperature 425 °C
 510 MPa
@Temperature 370 °C
 515 MPa
@Temperature 315 °C
 530 MPa
@Temperature 260 °C
 550 MPa
@Temperature 205 °C
 560 MPa
@Temperature 150 °C
Tensile Strength, Yield 290 MPa
@Strain 0.2 %
 125 MPa
@Strain 0.2 %,
Temperature 870 °C
 130 MPa
@Strain 0.2 %,
Temperature 815 °C
 140 MPa
@Strain 0.2 %,
Temperature 760 °C
 145 MPa
@Strain 0.2 %,
Temperature 705 °C
 150 MPa
@Strain 0.2 %,
Temperature 650 °C
 160 MPa
@Strain 0.2 %,
Temperature 595 °C
 165 MPa
@Strain 0.2 %,
Temperature 540 °C
 170 MPa
@Strain 0.2 %,
Temperature 480 °C
 185 MPa
@Strain 0.2 %,
Temperature 425 °C
 195 MPa
@Strain 0.2 %,
Temperature 370 °C
 205 MPa
@Strain 0.2 %,
Temperature 315 °C
 220 MPa
@Strain 0.2 %,
Temperature 260 °C
 240 MPa
@Strain 0.2 %,
Temperature 205 °C
 255 MPa
@Strain 0.2 %,
Temperature 150 °C
Elongation at Break 50 %in 50 mm
 35 %
@Temperature 595 °C
in 50 mm
 35 %
@Temperature 650 °C
in 50 mm
 36 %
@Temperature 540 °C
in 50 mm
 37 %
@Temperature 705 °C
in 50 mm
 39 %
@Temperature 480 °C
in 50 mm
 40 %
@Temperature 425 °C
in 50 mm
 40 %
@Temperature 760 °C
in 50 mm
 43 %
@Temperature 370 °C
in 50 mm
 44 %
@Temperature 315 °C
in 50 mm
 45 %
@Temperature 260 °C
in 50 mm
 46 %
@Temperature 205 °C
in 50 mm
 46 %
@Temperature 815 °C
in 50 mm
 47 %
@Temperature 150 °C
in 50 mm
 50 %
@Temperature 870 °C
in 50 mm
 59 %
@Temperature 925 °C
in 50 mm
 65 %
@Temperature 980 °C
in 50 mm
Modulus of Elasticity 200 GPa
Poissons Ratio 0.30
Shear Modulus 77.0 GPa
Izod Impact 120 - 165 J
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000780 ohm-cm
@Temperature 20.0 °C
Magnetic Permeability 1.008at RT
 
Thermal PropertiesOriginal ValueComments
CTE, linear 14.9 µm/m-°C
@Temperature 0.000 - 100 °C
 16.7 µm/m-°C
@Temperature 0.000 - 315 °C
 17.3 µm/m-°C
@Temperature 0.000 - 540 °C
 18.0 µm/m-°C
@Temperature 0.000 - 650 °C
Specific Heat Capacity 0.500 J/g-°C
@Temperature 0.000 - 100 °C
Thermal Conductivity 15.6 W/m-K
@Temperature 0.000 - 100 °C
Melting Point 1400 - 1455 °C
Solidus 1400 °C
Liquidus 1455 °C
Maximum Service Temperature, Air 980 °CIntermittent
 1095 °CContinuous Service
 
Component Elements PropertiesOriginal ValueComments
Carbon, C <= 0.080 %
Chromium, Cr 23 %
Iron, Fe 59 %
Manganese, Mn <= 2.0 %
Nickel, Ni 14 %
Niobium, Nb (Columbium, Cb) >= 0.80 %
Phosphorus, P <= 0.045 %
Silicon, Si <= 1.0 %
Sulfur, S <= 0.030 %

References for this datasheet.

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