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SAE-AISI D4 Steel vs. AWS E308Mo

Both SAE-AISI D4 steel and AWS E308Mo are iron alloys. They have 79% of their average alloy composition in common. There are 25 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 AWS E308Mo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 8.4 to 15
40
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 74
78
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
620

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 31
16
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 5.0
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.3
3.8
Embodied Energy, MJ/kg 49
53
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 15
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 75
22
Strength to Weight: Bending, points 24 to 47
20
Thermal Diffusivity, mm2/s 8.3
4.2
Thermal Shock Resistance, points 23 to 63
16

Alloy Composition

Carbon (C), % 2.1 to 2.4
0 to 0.080
Chromium (Cr), % 11 to 13
18 to 21
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 80.6 to 86.3
59.6 to 70.5
Manganese (Mn), % 0 to 0.6
0.5 to 2.5
Molybdenum (Mo), % 0.7 to 1.2
2.0 to 3.0
Nickel (Ni), % 0 to 0.3
9.0 to 12
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0 to 1.0
0