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S20161 Stainless Steel vs. SAE-AISI 1084 Steel

Both S20161 stainless steel and SAE-AISI 1084 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 S20161 stainless steel and the bottom bar is SAE-AISI 1084 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
220 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 46
11
Fatigue Strength, MPa 360
320 to 370
Poisson's Ratio 0.28
0.29
Reduction in Area, % 45
28 to 45
Shear Modulus, GPa 76
72
Shear Strength, MPa 690
470 to 550
Tensile Strength: Ultimate (UTS), MPa 980
780 to 930
Tensile Strength: Yield (Proof), MPa 390
510 to 600

Thermal Properties

Latent Heat of Fusion, J/g 330
240
Maximum Temperature: Mechanical, °C 870
400
Melting Completion (Liquidus), °C 1380
1450
Melting Onset (Solidus), °C 1330
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.2

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 360
81 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 390
700 to 960
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 36
28 to 33
Strength to Weight: Bending, points 29
24 to 27
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 22
25 to 30

Alloy Composition

Carbon (C), % 0 to 0.15
0.8 to 0.93
Chromium (Cr), % 15 to 18
0
Iron (Fe), % 65.6 to 73.9
98.1 to 98.6
Manganese (Mn), % 4.0 to 6.0
0.6 to 0.9
Nickel (Ni), % 4.0 to 6.0
0
Nitrogen (N), % 0.080 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 3.0 to 4.0
0
Sulfur (S), % 0 to 0.040
0 to 0.050