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SAE-AISI M6 Steel vs. SAE-AISI D5 Steel

Both SAE-AISI M6 steel and SAE-AISI D5 steel are iron alloys. They have 82% of their average alloy composition in common. There are 22 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 M6 steel and the bottom bar is SAE-AISI D5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 840 to 2210
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1560
1430
Melting Onset (Solidus), °C 1510
1390
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 17
27
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 39
13
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.0
3.5
Embodied Energy, MJ/kg 120
51
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 28
15
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28 to 73
28 to 73
Strength to Weight: Bending, points 24 to 45
24 to 46
Thermal Diffusivity, mm2/s 4.7
7.4
Thermal Shock Resistance, points 26 to 68
26 to 67

Alloy Composition

Carbon (C), % 0.75 to 0.85
1.4 to 1.6
Chromium (Cr), % 3.8 to 4.5
11 to 13
Cobalt (Co), % 11 to 13
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 68.8 to 74.6
77.9 to 84.4
Manganese (Mn), % 0.15 to 0.4
0 to 0.6
Molybdenum (Mo), % 4.5 to 5.5
0.7 to 1.2
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 3.8 to 4.8
0
Vanadium (V), % 1.3 to 1.7
0 to 1.0

Comparable Variants