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SAE-AISI 1080 Steel vs. S21600 Stainless Steel

Both SAE-AISI 1080 steel and S21600 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1080 steel and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
46
Fatigue Strength, MPa 300 to 360
360
Poisson's Ratio 0.29
0.28
Reduction in Area, % 28 to 45
56
Shear Modulus, GPa 72
79
Shear Strength, MPa 460 to 520
500
Tensile Strength: Ultimate (UTS), MPa 770 to 870
710
Tensile Strength: Yield (Proof), MPa 480 to 590
390

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
990
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.6
Embodied Energy, MJ/kg 19
50
Embodied Water, L/kg 46
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 84
270
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 920
370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 31
25
Strength to Weight: Bending, points 24 to 26
23
Thermal Shock Resistance, points 25 to 29
15

Alloy Composition

Carbon (C), % 0.75 to 0.88
0 to 0.080
Chromium (Cr), % 0
17.5 to 22
Iron (Fe), % 98.1 to 98.7
57.6 to 67.8
Manganese (Mn), % 0.6 to 0.9
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0 to 0.050
0 to 0.030