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SAE-AISI D3 Steel vs. SAE-AISI 4130 Steel

Both SAE-AISI D3 steel and SAE-AISI 4130 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 4130 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.8 to 15
13 to 26
Fatigue Strength, MPa 310 to 940
320 to 660
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 470 to 1220
340 to 640
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
530 to 1040
Tensile Strength: Yield (Proof), MPa 480 to 1550
440 to 980

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
43
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.2
1.5
Embodied Energy, MJ/kg 48
20
Embodied Water, L/kg 100
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
83 to 180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 74
19 to 37
Strength to Weight: Bending, points 24 to 47
19 to 29
Thermal Diffusivity, mm2/s 8.3
12
Thermal Shock Resistance, points 23 to 63
16 to 31

Alloy Composition

Carbon (C), % 2.0 to 2.4
0.28 to 0.33
Chromium (Cr), % 11 to 13.5
0.8 to 1.1
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.3 to 87
97.3 to 98.2
Manganese (Mn), % 0 to 0.6
0.4 to 0.6
Molybdenum (Mo), % 0
0.15 to 0.25
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 to 0.040
Tungsten (W), % 0 to 1.0
0
Vanadium (V), % 0 to 1.0
0

Comparable Variants