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SAE-AISI D4 Steel vs. SAE-AISI 1080 Steel

Both SAE-AISI D4 steel and SAE-AISI 1080 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 (5, 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 1080 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.4 to 15
11
Fatigue Strength, MPa 310 to 920
300 to 360
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 74
72
Shear Strength, MPa 460 to 1210
460 to 520
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
770 to 870
Tensile Strength: Yield (Proof), MPa 470 to 1540
480 to 590

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 31
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
9.6
Electrical Conductivity: Equal Weight (Specific), % IACS 5.0
11

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.4
Embodied Energy, MJ/kg 49
19
Embodied Water, L/kg 100
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 160
80 to 84
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 75
27 to 31
Strength to Weight: Bending, points 24 to 47
24 to 26
Thermal Diffusivity, mm2/s 8.3
14
Thermal Shock Resistance, points 23 to 63
25 to 29

Alloy Composition

Carbon (C), % 2.1 to 2.4
0.75 to 0.88
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
0.6 to 0.9
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.030
0 to 0.050
Vanadium (V), % 0 to 1.0
0