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SAE-AISI 4028 Steel vs. S33425 Stainless Steel

Both SAE-AISI 4028 steel and S33425 stainless steel are iron alloys. They have 53% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4028 steel and the bottom bar is S33425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 190
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 23
45
Fatigue Strength, MPa 180 to 330
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 310 to 380
400
Tensile Strength: Ultimate (UTS), MPa 490 to 630
580
Tensile Strength: Yield (Proof), MPa 260 to 520
230

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
14
Thermal Expansion, µm/m-K 12
16

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
27
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
5.1
Embodied Energy, MJ/kg 19
71
Embodied Water, L/kg 47
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 95
210
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 720
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 22
20
Strength to Weight: Bending, points 18 to 21
19
Thermal Diffusivity, mm2/s 13
3.7
Thermal Shock Resistance, points 16 to 20
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0.25 to 0.3
0 to 0.080
Chromium (Cr), % 0
21 to 23
Iron (Fe), % 98.1 to 98.7
47.2 to 56.7
Manganese (Mn), % 0.7 to 0.9
0 to 1.5
Molybdenum (Mo), % 0.2 to 0.3
2.0 to 3.0
Nickel (Ni), % 0
20 to 23
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0.035 to 0.050
0 to 0.020
Titanium (Ti), % 0
0.15 to 0.6