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SAE-AISI D4 Steel vs. SAE-AISI M1 Steel

Both SAE-AISI D4 steel and SAE-AISI M1 steel are iron alloys. They have 90% of their average alloy composition in common. There are 22 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 D4 steel and the bottom bar is SAE-AISI M1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 74
77
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
730 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1430
1560
Melting Onset (Solidus), °C 1380
1510
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 31
29
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
18
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 3.3
7.0
Embodied Energy, MJ/kg 49
99
Embodied Water, L/kg 100
98

Common Calculations

PREN (Pitting Resistance) 15
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27 to 75
25 to 73
Strength to Weight: Bending, points 24 to 47
22 to 45
Thermal Diffusivity, mm2/s 8.3
8.0
Thermal Shock Resistance, points 23 to 63
23 to 66

Alloy Composition

Carbon (C), % 2.1 to 2.4
0.78 to 0.88
Chromium (Cr), % 11 to 13
3.5 to 4.0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 80.6 to 86.3
81 to 84.8
Manganese (Mn), % 0 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0.7 to 1.2
8.2 to 9.2
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.6
0.2 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0 to 1.0
1.0 to 1.4

Comparable Variants