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AISI 418 Stainless Steel vs. C14200 Copper

AISI 418 stainless steel belongs to the iron alloys classification, while C14200 copper belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 418 stainless steel and the bottom bar is C14200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 17
8.0 to 45
Fatigue Strength, MPa 520
76 to 130
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Shear Strength, MPa 680
150 to 200
Tensile Strength: Ultimate (UTS), MPa 1100
220 to 370
Tensile Strength: Yield (Proof), MPa 850
75 to 340

Thermal Properties

Latent Heat of Fusion, J/g 270
210
Maximum Temperature: Mechanical, °C 770
200
Melting Completion (Liquidus), °C 1500
1080
Melting Onset (Solidus), °C 1460
1030
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 25
190
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
45
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
45

Otherwise Unclassified Properties

Base Metal Price, % relative 15
31
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 2.9
2.6
Embodied Energy, MJ/kg 41
41
Embodied Water, L/kg 110
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
29 to 83
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
24 to 500
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 38
6.8 to 11
Strength to Weight: Bending, points 29
9.1 to 13
Thermal Diffusivity, mm2/s 6.7
56
Thermal Shock Resistance, points 40
7.9 to 13

Alloy Composition

Arsenic (As), % 0
0.15 to 0.5
Carbon (C), % 0.15 to 0.2
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
99.4 to 99.835
Iron (Fe), % 78.5 to 83.6
0
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.8 to 2.2
0
Phosphorus (P), % 0 to 0.040
0.015 to 0.040
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 2.5 to 3.5
0