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SAE-AISI 4028 Steel vs. S28200 Stainless Steel

Both SAE-AISI 4028 steel and S28200 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4028 steel and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 190
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 23
45
Fatigue Strength, MPa 180 to 330
430
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 310 to 380
610
Tensile Strength: Ultimate (UTS), MPa 490 to 630
870
Tensile Strength: Yield (Proof), MPa 260 to 520
460

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
12
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 19
41
Embodied Water, L/kg 47
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 95
330
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 720
540
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 17 to 22
32
Strength to Weight: Bending, points 18 to 21
27
Thermal Shock Resistance, points 16 to 20
17

Alloy Composition

Carbon (C), % 0.25 to 0.3
0 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0
0.75 to 1.3
Iron (Fe), % 98.1 to 98.7
57.7 to 64.1
Manganese (Mn), % 0.7 to 0.9
17 to 19
Molybdenum (Mo), % 0.2 to 0.3
0.75 to 1.3
Nitrogen (N), % 0
0.4 to 0.6
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 0.030