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SAE-AISI O6 Steel vs. EN 1.4658 Stainless Steel

Both SAE-AISI O6 steel and EN 1.4658 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI O6 steel and the bottom bar is EN 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 71
81
Tensile Strength: Ultimate (UTS), MPa 670 to 2070
900

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 43
16
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
25
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
4.5
Embodied Energy, MJ/kg 21
61
Embodied Water, L/kg 47
200

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 74
32
Strength to Weight: Bending, points 22 to 47
26
Thermal Diffusivity, mm2/s 12
4.3
Thermal Shock Resistance, points 22 to 69
24

Alloy Composition

Carbon (C), % 1.3 to 1.6
0 to 0.030
Chromium (Cr), % 0 to 0.3
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0 to 0.25
0 to 1.0
Iron (Fe), % 94.6 to 97.7
50.9 to 63.7
Manganese (Mn), % 0.3 to 1.1
0 to 1.5
Molybdenum (Mo), % 0.2 to 0.3
4.0 to 5.0
Nickel (Ni), % 0 to 0.3
5.5 to 9.5
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.55 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010