MakeItFrom.com
Menu (ESC)

SAE-AISI 1078 Steel vs. S20161 Stainless Steel

Both SAE-AISI 1078 steel and S20161 stainless steel are iron alloys. They have 70% 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 1078 steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
46
Fatigue Strength, MPa 270 to 350
360
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34 to 45
45
Shear Modulus, GPa 72
76
Shear Strength, MPa 440 to 470
690
Tensile Strength: Ultimate (UTS), MPa 730 to 780
980
Tensile Strength: Yield (Proof), MPa 430 to 570
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 49
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
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 18
39
Embodied Water, L/kg 45
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 90
360
Resilience: Unit (Modulus of Resilience), kJ/m3 490 to 860
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 26 to 28
36
Strength to Weight: Bending, points 23 to 24
29
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 25 to 26
22

Alloy Composition

Carbon (C), % 0.72 to 0.85
0 to 0.15
Chromium (Cr), % 0
15 to 18
Iron (Fe), % 98.5 to 99
65.6 to 73.9
Manganese (Mn), % 0.3 to 0.6
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