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336.0 Aluminum vs. AISI 321H Stainless Steel

336.0 aluminum belongs to the aluminum alloys classification, while AISI 321H stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 336.0 aluminum and the bottom bar is AISI 321H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 130
190
Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 0.5
40
Fatigue Strength, MPa 80 to 93
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
77
Shear Strength, MPa 190 to 250
400
Tensile Strength: Ultimate (UTS), MPa 250 to 320
580
Tensile Strength: Yield (Proof), MPa 190 to 300
230

Thermal Properties

Latent Heat of Fusion, J/g 570
290
Maximum Temperature: Mechanical, °C 210
940
Melting Completion (Liquidus), °C 570
1430
Melting Onset (Solidus), °C 540
1380
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 120
15
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 95
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 11
16
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 7.9
3.2
Embodied Energy, MJ/kg 140
46
Embodied Water, L/kg 1010
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.1 to 1.6
190
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 580
140
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 25 to 32
21
Strength to Weight: Bending, points 32 to 38
20
Thermal Diffusivity, mm2/s 48
4.0
Thermal Shock Resistance, points 12 to 16
12

Alloy Composition

Aluminum (Al), % 79.1 to 85.8
0
Carbon (C), % 0
0.040 to 0.1
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0.5 to 1.5
0
Iron (Fe), % 0 to 1.2
65.4 to 74
Magnesium (Mg), % 0.7 to 1.3
0
Manganese (Mn), % 0 to 0.35
0 to 2.0
Nickel (Ni), % 2.0 to 3.0
9.0 to 12
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 11 to 13
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0 to 0.7
Zinc (Zn), % 0 to 0.35
0