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SAE-AISI 1084 Steel vs. AISI 316N Stainless Steel

Both SAE-AISI 1084 steel and AISI 316N stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 31 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 1084 steel and the bottom bar is AISI 316N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 270
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
9.0 to 39
Fatigue Strength, MPa 320 to 370
230 to 450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 470 to 550
420 to 690
Tensile Strength: Ultimate (UTS), MPa 780 to 930
620 to 1160
Tensile Strength: Yield (Proof), MPa 510 to 600
270 to 870

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 89
95 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 960
180 to 1880
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 28 to 33
22 to 41
Strength to Weight: Bending, points 24 to 27
20 to 31
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 25 to 30
14 to 26

Alloy Composition

Carbon (C), % 0.8 to 0.93
0 to 0.080
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 98.1 to 98.6
61.9 to 71.9
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0
0.1 to 0.16
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