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SAE-AISI H12 Steel vs. S32506 Stainless Steel

Both SAE-AISI H12 steel and S32506 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 24 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 H12 steel and the bottom bar is S32506 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 75
81
Tensile Strength: Ultimate (UTS), MPa 690 to 1850
710

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1440
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 36
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.9
3.9
Embodied Energy, MJ/kg 41
54
Embodied Water, L/kg 76
180

Common Calculations

PREN (Pitting Resistance) 12
38
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 65
25
Strength to Weight: Bending, points 22 to 42
23
Thermal Diffusivity, mm2/s 9.8
4.3
Thermal Shock Resistance, points 22 to 60
19

Alloy Composition

Carbon (C), % 0.3 to 0.4
0 to 0.030
Chromium (Cr), % 4.8 to 5.5
24 to 26
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 87.8 to 91.7
60.8 to 67.4
Manganese (Mn), % 0.2 to 0.5
0 to 1.0
Molybdenum (Mo), % 1.3 to 1.8
3.0 to 3.5
Nickel (Ni), % 0 to 0.3
5.5 to 7.2
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.8 to 1.2
0 to 0.9
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 1.0 to 1.7
0.050 to 0.3
Vanadium (V), % 0 to 0.5
0