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SAE-AISI M1 Steel vs. ASTM Grade HD Steel

Both SAE-AISI M1 steel and ASTM grade HD steel are iron alloys. They have 69% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M1 steel and the bottom bar is ASTM grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 730 to 2140
590

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1560
1410
Melting Onset (Solidus), °C 1510
1370
Specific Heat Capacity, J/kg-K 450
490
Thermal Conductivity, W/m-K 29
16
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 18
17
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 7.0
3.1
Embodied Energy, MJ/kg 99
45
Embodied Water, L/kg 98
180

Common Calculations

PREN (Pitting Resistance) 35
29
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 25 to 73
21
Strength to Weight: Bending, points 22 to 45
20
Thermal Diffusivity, mm2/s 8.0
4.3
Thermal Shock Resistance, points 23 to 66
19

Alloy Composition

Carbon (C), % 0.78 to 0.88
0 to 0.5
Chromium (Cr), % 3.5 to 4.0
26 to 30
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81 to 84.8
58.4 to 70
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 8.2 to 9.2
0 to 0.5
Nickel (Ni), % 0 to 0.3
4.0 to 7.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0