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SAE-AISI A2 Steel vs. N08028 Stainless Steel

Both SAE-AISI A2 steel and N08028 stainless steel are iron alloys. They have 42% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A2 steel and the bottom bar is N08028 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 74
80
Tensile Strength: Ultimate (UTS), MPa 710 to 2040
570

Thermal Properties

Latent Heat of Fusion, J/g 260
320
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 38
12
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 5.5
37
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.7
6.4
Embodied Energy, MJ/kg 38
89
Embodied Water, L/kg 73
240

Common Calculations

PREN (Pitting Resistance) 8.9
39
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 73
19
Strength to Weight: Bending, points 23 to 46
19
Thermal Diffusivity, mm2/s 10
3.2
Thermal Shock Resistance, points 25 to 71
12

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.030
Chromium (Cr), % 4.8 to 5.5
26 to 28
Copper (Cu), % 0 to 0.25
0.6 to 1.4
Iron (Fe), % 89.4 to 93.3
29 to 40.4
Manganese (Mn), % 0 to 1.0
0 to 2.5
Molybdenum (Mo), % 0.9 to 1.4
3.0 to 4.0
Nickel (Ni), % 0 to 0.3
30 to 34
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.15 to 0.5
0