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SAE-AISI 4028 Steel vs. ACI-ASTM CE30 Steel

Both SAE-AISI 4028 steel and ACI-ASTM CE30 steel are iron alloys. They have 62% 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 SAE-AISI 4028 steel and the bottom bar is ACI-ASTM CE30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 190
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 23
11
Fatigue Strength, MPa 180 to 330
170
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 490 to 630
630
Tensile Strength: Yield (Proof), MPa 260 to 520
310

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 49
14
Thermal Expansion, µm/m-K 12
17

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
19
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
3.4
Embodied Energy, MJ/kg 19
49
Embodied Water, L/kg 47
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 95
59
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 720
240
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 22
23
Strength to Weight: Bending, points 18 to 21
21
Thermal Diffusivity, mm2/s 13
3.6
Thermal Shock Resistance, points 16 to 20
13

Alloy Composition

Carbon (C), % 0.25 to 0.3
0 to 0.3
Chromium (Cr), % 0
26 to 30
Iron (Fe), % 98.1 to 98.7
55.1 to 66
Manganese (Mn), % 0.7 to 0.9
0 to 1.5
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 0
8.0 to 11
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 2.0
Sulfur (S), % 0.035 to 0.050
0 to 0.040