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SAE-AISI M1 Steel vs. ASTM Grade HH Steel

Both SAE-AISI M1 steel and ASTM grade HH steel are iron alloys. They have 64% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 HH 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
79
Tensile Strength: Ultimate (UTS), MPa 730 to 2140
580

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1560
1400
Melting Onset (Solidus), °C 1510
1360
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 29
14
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 18
20
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 7.0
3.7
Embodied Energy, MJ/kg 99
53
Embodied Water, L/kg 98
180

Common Calculations

PREN (Pitting Resistance) 35
27
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 73
21
Strength to Weight: Bending, points 22 to 45
20
Thermal Diffusivity, mm2/s 8.0
3.8
Thermal Shock Resistance, points 23 to 66
12

Alloy Composition

Carbon (C), % 0.78 to 0.88
0.2 to 0.5
Chromium (Cr), % 3.5 to 4.0
24 to 28
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81 to 84.8
52.9 to 64.8
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 8.2 to 9.2
0 to 0.5
Nickel (Ni), % 0 to 0.3
11 to 14
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