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SAE-AISI H12 Steel vs. N08810 Stainless Steel

Both SAE-AISI H12 steel and N08810 stainless steel are iron alloys. They have 51% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H12 steel and the bottom bar is N08810 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 690 to 1850
520

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1480
1400
Melting Onset (Solidus), °C 1440
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 36
12
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
30
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 2.9
5.3
Embodied Energy, MJ/kg 41
76
Embodied Water, L/kg 76
200

Common Calculations

PREN (Pitting Resistance) 12
21
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 65
18
Strength to Weight: Bending, points 22 to 42
18
Thermal Diffusivity, mm2/s 9.8
3.0
Thermal Shock Resistance, points 22 to 60
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0.3 to 0.4
0.050 to 0.1
Chromium (Cr), % 4.8 to 5.5
19 to 23
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 87.8 to 91.7
39.5 to 50.7
Manganese (Mn), % 0.2 to 0.5
0 to 1.5
Molybdenum (Mo), % 1.3 to 1.8
0
Nickel (Ni), % 0 to 0.3
30 to 35
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.8 to 1.2
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6
Tungsten (W), % 1.0 to 1.7
0
Vanadium (V), % 0 to 0.5
0