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AK Steel 444 Ferritic Stainless steel

Category Metal , Ferrous Metal , Ferritic , Stainless Steel , T 400 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
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Material Notes:
AK Steel 444 is a low-carbon, low nitrogen, ferritic stainless steel that provides pitting and crevice corrosion resistance superior to most ferritic stainless steels. Applications requiring superior corrosion resistance and resistance to chloride stress corrosion cracking are ideal for this alloy. Current uses include food processing, brewery and wine-making equipment; hot-water tanks and heat exchanger tubing and automotive components.Information provided by AK Steel
Physical Properties Metric English Comments
Density 7.75 g/cc
0.280 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell B <= 90
<= 90
Tensile Strength, Ultimate >= 414 MPa
>= 60000 psi
Tensile Strength, Yield 360 MPa

@Strain 0.200 %
52200 psi

@Strain 0.200 %
Elongation at Break >= 20 %
>= 20 %
in 2 inches
Thermal Properties Metric English Comments
CTE, linear 11.0 µm/m-°C

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

@Temperature 32.0 - 212 °F
Specific Heat Capacity 0.427 J/g-°C

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

@Temperature 32.0 - 212 °F
Thermal Conductivity 26.8 W/m-K

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

@Temperature 212 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.025 %
<= 0.025 %
Chromium, Cr 17.5 - 19.5 %
17.5 - 19.5 %
Iron, Fe >= 74.105 %
>= 74.105 %
As Remainder
Manganese, Mn <= 1.0 %
<= 1.0 %
Molybdenum, Mo 1.75 - 2.5 %
1.75 - 2.5 %
Nickel, Ni <= 1.0 %
<= 1.0 %
Other, total 0.20 - 0.80 %
0.20 - 0.80 %
Phosphorous, P <= 0.040 %
<= 0.040 %
Silicon, Si <= 1.0 %
<= 1.0 %
Sulfur, S <= 0.030 %
<= 0.030 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000570 ohm-cm
0.0000570 ohm-cm
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