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SAE-AISI 1080 Steel vs. AISI 314 Stainless Steel

Both SAE-AISI 1080 steel and AISI 314 stainless steel are iron alloys. They have 53% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1080 steel and the bottom bar is AISI 314 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
45
Fatigue Strength, MPa 300 to 360
210
Poisson's Ratio 0.29
0.28
Reduction in Area, % 28 to 45
57
Shear Modulus, GPa 72
78
Shear Strength, MPa 460 to 520
410
Tensile Strength: Ultimate (UTS), MPa 770 to 870
590
Tensile Strength: Yield (Proof), MPa 480 to 590
230

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
25
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
4.3
Embodied Energy, MJ/kg 19
62
Embodied Water, L/kg 46
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 84
210
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 920
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 31
21
Strength to Weight: Bending, points 24 to 26
20
Thermal Diffusivity, mm2/s 14
3.9
Thermal Shock Resistance, points 25 to 29
14

Alloy Composition

Carbon (C), % 0.75 to 0.88
0 to 0.25
Chromium (Cr), % 0
23 to 26
Iron (Fe), % 98.1 to 98.7
46.7 to 56.5
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Nickel (Ni), % 0
19 to 22
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
1.5 to 3.0
Sulfur (S), % 0 to 0.050
0 to 0.030