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SAE-AISI 1012 Steel vs. S31260 Stainless Steel

Both SAE-AISI 1012 steel and S31260 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1012 steel and the bottom bar is S31260 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21 to 31
23
Fatigue Strength, MPa 150 to 230
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Shear Strength, MPa 230 to 250
500
Tensile Strength: Ultimate (UTS), MPa 360 to 400
790
Tensile Strength: Yield (Proof), MPa 200 to 330
540

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 53
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 18
53
Embodied Water, L/kg 45
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 93
160
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 300
720
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 14
28
Strength to Weight: Bending, points 14 to 15
24
Thermal Diffusivity, mm2/s 14
4.3
Thermal Shock Resistance, points 11 to 13
22

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 99.16 to 99.6
59.6 to 67.6
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0 to 0.050
0 to 0.030
Tungsten (W), % 0
0.1 to 0.5