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EN 1.4874 Stainless Steel vs. SAE-AISI O6 Steel

Both EN 1.4874 stainless steel and SAE-AISI O6 steel are iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4874 stainless steel and the bottom bar is SAE-AISI O6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
71
Tensile Strength: Ultimate (UTS), MPa 480
670 to 2070

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
43
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
2.3
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 7.6
1.5
Embodied Energy, MJ/kg 110
21
Embodied Water, L/kg 290
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16
24 to 74
Strength to Weight: Bending, points 16
22 to 47
Thermal Diffusivity, mm2/s 3.3
12
Thermal Shock Resistance, points 11
22 to 69

Alloy Composition

Carbon (C), % 0.35 to 0.65
1.3 to 1.6
Chromium (Cr), % 19 to 22
0 to 0.3
Cobalt (Co), % 18.5 to 22
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 23 to 38.9
94.6 to 97.7
Manganese (Mn), % 0 to 2.0
0.3 to 1.1
Molybdenum (Mo), % 2.5 to 3.0
0.2 to 0.3
Nickel (Ni), % 18 to 22
0 to 0.3
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.55 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 2.0 to 3.0
0