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SAE-AISI 4028 Steel vs. EN 1.7003 Steel

Both SAE-AISI 4028 steel and EN 1.7003 steel are iron alloys. Their average alloy composition is basically identical. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4028 steel and the bottom bar is EN 1.7003 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 190
150 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 490 to 630
520 to 1780

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
46
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 22
18 to 63
Strength to Weight: Bending, points 18 to 21
18 to 42
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 16 to 20
15 to 53

Alloy Composition

Carbon (C), % 0.25 to 0.3
0.35 to 0.42
Chromium (Cr), % 0
0.4 to 0.6
Iron (Fe), % 98.1 to 98.7
97.7 to 98.8
Manganese (Mn), % 0.7 to 0.9
0.5 to 0.8
Molybdenum (Mo), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0.035 to 0.050
0 to 0.035