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AISI 409Cb Stainless Steel vs. SAE-AISI 4028 Steel

Both AISI 409Cb stainless steel and SAE-AISI 4028 steel are iron alloys. They have 88% of their average alloy composition in common. There are 30 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 409Cb stainless steel and the bottom bar is SAE-AISI 4028 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
14 to 23
Fatigue Strength, MPa 140
180 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 270
310 to 380
Tensile Strength: Ultimate (UTS), MPa 420
490 to 630
Tensile Strength: Yield (Proof), MPa 200
260 to 520

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 710
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
49
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.5
Embodied Energy, MJ/kg 31
19
Embodied Water, L/kg 94
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
81 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 100
180 to 720
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
17 to 22
Strength to Weight: Bending, points 16
18 to 21
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 15
16 to 20

Alloy Composition

Carbon (C), % 0 to 0.060
0.25 to 0.3
Chromium (Cr), % 10.5 to 11.7
0
Iron (Fe), % 84.9 to 89.5
98.1 to 98.7
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.040
0.035 to 0.050