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SAE-AISI D5 Steel vs. EN 1.6781 Steel

Both SAE-AISI D5 steel and EN 1.6781 steel are iron alloys. They have 84% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D5 steel and the bottom bar is EN 1.6781 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.4 to 14
17
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 770 to 2030
830

Thermal Properties

Latent Heat of Fusion, J/g 270
260
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 27
44
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 4.9
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
5.0
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.5
1.9
Embodied Energy, MJ/kg 51
25
Embodied Water, L/kg 120
60

Common Calculations

PREN (Pitting Resistance) 15
3.3
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 73
29
Strength to Weight: Bending, points 24 to 46
25
Thermal Diffusivity, mm2/s 7.4
12
Thermal Shock Resistance, points 26 to 67
24

Alloy Composition

Carbon (C), % 1.4 to 1.6
0.15 to 0.19
Chromium (Cr), % 11 to 13
1.3 to 1.8
Cobalt (Co), % 2.5 to 3.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 77.9 to 84.4
92.6 to 94.6
Manganese (Mn), % 0 to 0.6
0.55 to 0.8
Molybdenum (Mo), % 0.7 to 1.2
0.45 to 0.6
Nickel (Ni), % 0 to 0.3
3.0 to 3.5
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Vanadium (V), % 0 to 1.0
0