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SAE-AISI H14 Steel vs. N08031 Stainless Steel

Both SAE-AISI H14 steel and N08031 stainless steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. 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 H14 steel and the bottom bar is N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
81
Tensile Strength: Ultimate (UTS), MPa 710 to 2030
730

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1530
1440
Melting Onset (Solidus), °C 1490
1390
Specific Heat Capacity, J/kg-K 460
460
Thermal Conductivity, W/m-K 35
12
Thermal Expansion, µm/m-K 11
18

Otherwise Unclassified Properties

Base Metal Price, % relative 15
39
Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 2.7
7.1
Embodied Energy, MJ/kg 39
96
Embodied Water, L/kg 73
240

Common Calculations

PREN (Pitting Resistance) 13
52
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 69
25
Strength to Weight: Bending, points 22 to 44
22
Thermal Diffusivity, mm2/s 9.3
3.1
Thermal Shock Resistance, points 24 to 68
14

Alloy Composition

Carbon (C), % 0.35 to 0.45
0 to 0.015
Chromium (Cr), % 4.8 to 5.5
26 to 28
Copper (Cu), % 0 to 0.25
1.0 to 1.4
Iron (Fe), % 86.5 to 89.9
29 to 36.9
Manganese (Mn), % 0.2 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0 to 0.3
30 to 32
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.8 to 1.2
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 4.0 to 5.3
0