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SAE-AISI 4028 Steel vs. S32202 Stainless Steel

Both SAE-AISI 4028 steel and S32202 stainless steel are iron alloys. They have 75% 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 SAE-AISI 4028 steel and the bottom bar is S32202 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 190
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 23
34
Fatigue Strength, MPa 180 to 330
400
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Shear Strength, MPa 310 to 380
490
Tensile Strength: Ultimate (UTS), MPa 490 to 630
730
Tensile Strength: Yield (Proof), MPa 260 to 520
510

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1030
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.6
Embodied Energy, MJ/kg 19
37
Embodied Water, L/kg 47
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 95
220
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 720
650
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 22
27
Strength to Weight: Bending, points 18 to 21
24
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 16 to 20
20

Alloy Composition

Carbon (C), % 0.25 to 0.3
0 to 0.030
Chromium (Cr), % 0
21.5 to 24
Iron (Fe), % 98.1 to 98.7
69.4 to 77.3
Manganese (Mn), % 0.7 to 0.9
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.3
0 to 0.45
Nickel (Ni), % 0
1.0 to 2.8
Nitrogen (N), % 0
0.18 to 0.26
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0.035 to 0.050
0 to 0.010