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SAE-AISI 1070 Steel vs. S20161 Stainless Steel

Both SAE-AISI 1070 steel and S20161 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 32 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 1070 steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 230
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10 to 13
46
Fatigue Strength, MPa 270 to 350
360
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34 to 51
45
Shear Modulus, GPa 72
76
Shear Strength, MPa 380 to 460
690
Tensile Strength: Ultimate (UTS), MPa 640 to 760
980
Tensile Strength: Yield (Proof), MPa 420 to 560
390

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 400
870
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 50
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
12
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 19
39
Embodied Water, L/kg 46
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59 to 86
360
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 850
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 23 to 27
36
Strength to Weight: Bending, points 21 to 24
29
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 21 to 25
22

Alloy Composition

Carbon (C), % 0.65 to 0.75
0 to 0.15
Chromium (Cr), % 0
15 to 18
Iron (Fe), % 98.3 to 98.8
65.6 to 73.9
Manganese (Mn), % 0.6 to 0.9
4.0 to 6.0
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
3.0 to 4.0
Sulfur (S), % 0 to 0.050
0 to 0.040