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AISI 420 Stainless Steel vs. C14520 Copper

AISI 420 stainless steel belongs to the iron alloys classification, while C14520 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 420 stainless steel and the bottom bar is C14520 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 8.0 to 15
9.0 to 9.6
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
43
Shear Strength, MPa 420 to 1010
170 to 190
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
290 to 330
Tensile Strength: Yield (Proof), MPa 380 to 1310
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Maximum Temperature: Mechanical, °C 620
200
Melting Completion (Liquidus), °C 1510
1080
Melting Onset (Solidus), °C 1450
1050
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 27
320
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
85
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
85

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
33
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.0
2.6
Embodied Energy, MJ/kg 28
42
Embodied Water, L/kg 100
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
240 to 280
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 25 to 62
9.0 to 10
Strength to Weight: Bending, points 22 to 41
11 to 12
Thermal Diffusivity, mm2/s 7.3
94
Thermal Shock Resistance, points 25 to 62
10 to 12

Alloy Composition

Carbon (C), % 0.15 to 0.4
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
99.2 to 99.596
Iron (Fe), % 82.3 to 87.9
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.040
0.0040 to 0.020
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tellurium (Te), % 0
0.4 to 0.7