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AK Steel 409 Ferritic Stainless steel

Category Metal , Ferrous Metal , Ferritic , Stainless Steel , T 400 Series Stainless Steel
Manufacturer AK Steel
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
AK Steel 409 Stainless Steels are especially useful for applications where oxidation or corrosion protection beyond the capacity of carbon steel and some coated steels is needed. Current applications include automotive and truck exhaust systems, including tubular manifolds; agricultural spreaders, gas turbine exhaust silencers, and heat exchangers. AK Steel 409 is also useful for "difficult-to-form" hardware such as fuel filters.Information provided by AK Steel
Physical Properties Metric English Comments
Density 7.61 g/cc
0.275 lb/in³
Mechanical Properties Metric English Comments
Hardness, Rockwell B 66 - 72

@Thickness 1.02 - 1.78 mm
66 - 72

@Thickness 0.0400 - 0.0700 in
Annealed Condition
Tensile Strength, Ultimate 414 - 469 MPa

@Thickness 1.02 - 1.78 mm
60000 - 68000 psi

@Thickness 0.0400 - 0.0700 in
Annealed Condition
6.20 MPa

@Thickness 1.14 - 1.52 mm,
Temperature 816 °C
899 psi

@Thickness 0.0449 - 0.0598 in,
Temperature 1500 °F
10.3 MPa

@Thickness 1.14 - 1.52 mm,
Temperature 816 °C
1490 psi

@Thickness 0.0449 - 0.0598 in,
Temperature 1500 °F
22.0 MPa

@Thickness 1.14 - 1.52 mm,
Temperature 704 °C
3190 psi

@Thickness 0.0449 - 0.0598 in,
Temperature 1300 °F
27.5 MPa

@Thickness 1.14 - 1.52 mm,
Temperature 704 °C
3990 psi

@Thickness 0.0449 - 0.0598 in,
Temperature 1300 °F
Tensile Strength, Yield 241 - 283 MPa

@Strain 0.200 %,
Thickness 1.02 - 1.78 mm
35000 - 41000 psi

@Strain 0.200 %,
Thickness 0.0400 - 0.0700 in
Annealed Condition
Elongation at Break 31 - 39 %
31 - 39 %
in 2 inches, Annealed Condition (0.040" - 0.070")
Modulus of Elasticity 208 GPa
30200 ksi
Fatigue Strength 10.0 MPa

@# of Cycles 1.00e+7 ,
Temperature 816 °C
1450 psi

@# of Cycles 1.00e+7 ,
Temperature 1500 °F
117 MPa

@# of Cycles 1.00e+7 ,
Temperature 593 °C
17000 psi

@# of Cycles 1.00e+7 ,
Temperature 1100 °F
324 MPa

@# of Cycles 1.00e+7
47000 psi

@# of Cycles 1.00e+7
Component Elements Properties Metric English Comments
Carbon, C <= 0.020 %
<= 0.020 %
Chromium, Cr 10.5 - 11.7 %
10.5 - 11.7 %
Iron, Fe >= 85.3 %
>= 85.3 %
As Remainder
Manganese, Mn <= 0.75 %
<= 0.75 %
Nickel, Ni <= 0.50 %
<= 0.50 %
Nitrogen, N <= 0.020 %
<= 0.020 %
Phosphorous, P <= 0.040 %
<= 0.040 %
Silicon, Si <= 1.0 %
<= 1.0 %
Sulfur, S <= 0.020 %
<= 0.020 %
Titanium, Ti 0.15 - 0.50 %
0.15 - 0.50 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000600 ohm-cm
0.0000600 ohm-cm
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