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ASTM Grade HD Steel vs. SAE-AISI M41 Steel

Both ASTM grade HD steel and SAE-AISI M41 steel are iron alloys. They have 70% 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 ASTM grade HD steel and the bottom bar is SAE-AISI M41 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 590
800 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1410
1600
Melting Onset (Solidus), °C 1370
1550
Specific Heat Capacity, J/kg-K 490
440
Thermal Conductivity, W/m-K 16
22
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 17
33
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 3.1
9.1
Embodied Energy, MJ/kg 45
140
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 29
28
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
23
Strength to Weight: Axial, points 21
26 to 76
Strength to Weight: Bending, points 20
23 to 46
Thermal Diffusivity, mm2/s 4.3
6.0
Thermal Shock Resistance, points 19
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.5
1.1 to 1.2
Chromium (Cr), % 26 to 30
3.8 to 4.5
Cobalt (Co), % 0
4.8 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58.4 to 70
73.4 to 78.9
Manganese (Mn), % 0 to 1.5
0.2 to 0.6
Molybdenum (Mo), % 0 to 0.5
3.3 to 4.3
Nickel (Ni), % 4.0 to 7.0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0.15 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
6.3 to 7.0
Vanadium (V), % 0
1.8 to 2.3