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AISI 409 Stainless Steel vs. ASTM A182 Grade F122

Both AISI 409 stainless steel and ASTM A182 grade F122 are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is ASTM A182 grade F122.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
23
Fatigue Strength, MPa 140
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 270
450
Tensile Strength: Ultimate (UTS), MPa 420
710
Tensile Strength: Yield (Proof), MPa 200
450

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 710
600
Melting Completion (Liquidus), °C 1450
1490
Melting Onset (Solidus), °C 1400
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
24
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
10
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
12
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.0
3.0
Embodied Energy, MJ/kg 28
44
Embodied Water, L/kg 94
100

Common Calculations

PREN (Pitting Resistance) 11
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
140
Resilience: Unit (Modulus of Resilience), kJ/m3 100
520
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
25
Strength to Weight: Bending, points 16
22
Thermal Diffusivity, mm2/s 6.7
6.4
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.080
0.070 to 0.14
Chromium (Cr), % 10.5 to 11.7
10 to 11.5
Copper (Cu), % 0
0.3 to 1.7
Iron (Fe), % 84.9 to 89.5
81.3 to 87.7
Manganese (Mn), % 0 to 1.0
0 to 0.7
Molybdenum (Mo), % 0
0.25 to 0.6
Nickel (Ni), % 0 to 0.5
0 to 0.5
Niobium (Nb), % 0
0.040 to 0.1
Nitrogen (N), % 0
0.040 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0 to 0.75
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5
Vanadium (V), % 0
0.15 to 0.3
Zirconium (Zr), % 0
0 to 0.010