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AK Steel 309S Austenitic Stainless steel

Category Metal , Ferrous Metal , Austenitic , Stainless Steel , T 300 Series Stainless Steel
Manufacturer AK Steel
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF AK Steel 309S Austenitic Stainless steel.pdf
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Material Notes:
AK Steel 309S provides excellent corrosion resistance and heat resistance plus good strength at room and elevated temperatures. The alloy is non-magnetic as annealed and becomes slightly magnetic when cold worked. AK Steel 309S is identical to AK Steel 309, except for a lower carbon content that minimizes carbide precipitation and improves weldability.Information provided by AK Steel
Physical Properties Metric English Comments
Density 9.01 g/cc
0.326 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell B 85
85
Annealed
Tensile Strength, Ultimate 621 MPa
90100 psi
Annealed
145 MPa

@Temperature 871 °C
21000 psi

@Temperature 1600 °F
441 MPa

@Temperature 538 °C
64000 psi

@Temperature 1000 °F
545 MPa

@Temperature 204 °C
79000 psi

@Temperature 399 °F
Tensile Strength, Yield 310 MPa

@Strain 0.200 %
45000 psi

@Strain 0.200 %
Annealed
120 MPa

@Strain 0.200 %,
Temperature 871 °C
17400 psi

@Strain 0.200 %,
Temperature 1600 °F
200 MPa

@Strain 0.200 %,
Temperature 538 °C
29000 psi

@Strain 0.200 %,
Temperature 1000 °F
262 MPa

@Strain 0.200 %,
Temperature 204 °C
38000 psi

@Strain 0.200 %,
Temperature 399 °F
Elongation at Break 45 %
45 %
in 2 inches, Annealed
38 %

@Temperature 538 °C
38 %

@Temperature 1000 °F
in 2 inches
46 %

@Temperature 204 °C
46 %

@Temperature 399 °F
in 2 inches
50 %

@Temperature 871 °C
50 %

@Temperature 1600 °F
in 2 inches
Modulus of Elasticity 200 GPa
29000 ksi
Izod Impact 140 J
103 ft-lb
V-Notch (Annealed)
Thermal Properties Metric English Comments
CTE, linear 14.9 µm/m-°C

@Temperature 0.000 - 100 °C
8.28 µin/in-°F

@Temperature 32.0 - 212 °F
18.0 µm/m-°C

@Temperature <=649 °C
10.0 µin/in-°F

@Temperature <=1200 °F
Specific Heat Capacity 0.500 J/g-°C

@Temperature 0.000 - 100 °C
0.120 BTU/lb-°F

@Temperature 32.0 - 212 °F
Thermal Conductivity 15.6 W/m-K

@Temperature 100 °C
108 BTU-in/hr-ft²-°F

@Temperature 212 °F
18.7 W/m-K

@Temperature 500 °C
130 BTU-in/hr-ft²-°F

@Temperature 932 °F
Melting Point 1399 - 1454 °C
2550 - 2649 °F
Solidus 1399 °C
2550 °F
Liquidus 1454 °C
2649 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.080 %
<= 0.080 %
Chromium, Cr 22 - 24 %
22 - 24 %
Iron, Fe 58.095 - 66 %
58.095 - 66 %
As Remainder
Manganese, Mn <= 2.0 %
<= 2.0 %
Nickel, Ni 12 - 15 %
12 - 15 %
Phosphorous, P <= 0.045 %
<= 0.045 %
Silicon, Si <= 0.75 %
<= 0.75 %
Sulfur, S <= 0.030 %
<= 0.030 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000780 ohm-cm
0.0000780 ohm-cm
Magnetic Permeability <= 1.02
<= 1.02
H = 200 Oersteds, Annealed
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