MakeItFrom.com
Menu (ESC)

SAE-AISI D3 Steel vs. SAE-AISI 4720 Steel

Both SAE-AISI D3 steel and SAE-AISI 4720 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 D3 steel and the bottom bar is SAE-AISI 4720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.8 to 15
25
Fatigue Strength, MPa 310 to 940
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 470 to 1220
310
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
490
Tensile Strength: Yield (Proof), MPa 480 to 1550
350

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 31
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
2.9
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.2
1.6
Embodied Energy, MJ/kg 48
21
Embodied Water, L/kg 100
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 74
17
Strength to Weight: Bending, points 24 to 47
18
Thermal Diffusivity, mm2/s 8.3
10
Thermal Shock Resistance, points 23 to 63
14

Alloy Composition

Carbon (C), % 2.0 to 2.4
0.17 to 0.22
Chromium (Cr), % 11 to 13.5
0.35 to 0.55
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.3 to 87
96.7 to 97.8
Manganese (Mn), % 0 to 0.6
0.5 to 0.7
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0 to 0.3
0.9 to 1.2
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 to 0.040
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0