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SAE-AISI D4 Steel vs. SAE-AISI 4028 Steel

Both SAE-AISI D4 steel and SAE-AISI 4028 steel are iron alloys. They have 85% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D4 steel and the bottom bar is SAE-AISI 4028 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.4 to 15
14 to 23
Fatigue Strength, MPa 310 to 920
180 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 460 to 1210
310 to 380
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
490 to 630
Tensile Strength: Yield (Proof), MPa 470 to 1540
260 to 520

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 31
49
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 5.0
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
2.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.5
Embodied Energy, MJ/kg 49
19
Embodied Water, L/kg 100
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 160
81 to 95
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 75
17 to 22
Strength to Weight: Bending, points 24 to 47
18 to 21
Thermal Diffusivity, mm2/s 8.3
13
Thermal Shock Resistance, points 23 to 63
16 to 20

Alloy Composition

Carbon (C), % 2.1 to 2.4
0.25 to 0.3
Chromium (Cr), % 11 to 13
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.6 to 86.3
98.1 to 98.7
Manganese (Mn), % 0 to 0.6
0.7 to 0.9
Molybdenum (Mo), % 0.7 to 1.2
0.2 to 0.3
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.6
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0.035 to 0.050
Vanadium (V), % 0 to 1.0
0

Comparable Variants