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S40977 Stainless Steel vs. C99300 Copper

S40977 stainless steel belongs to the iron alloys classification, while C99300 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 S40977 stainless steel and the bottom bar is C99300 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200
Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 21
2.0
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
46
Tensile Strength: Ultimate (UTS), MPa 510
660
Tensile Strength: Yield (Proof), MPa 310
380

Thermal Properties

Latent Heat of Fusion, J/g 270
240
Maximum Temperature: Mechanical, °C 720
250
Melting Completion (Liquidus), °C 1440
1080
Melting Onset (Solidus), °C 1400
1070
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 25
43
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
35
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.9
4.5
Embodied Energy, MJ/kg 27
70
Embodied Water, L/kg 97
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
11
Resilience: Unit (Modulus of Resilience), kJ/m3 250
590
Stiffness to Weight: Axial, points 14
8.3
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 6.7
12
Thermal Shock Resistance, points 18
22

Alloy Composition

Aluminum (Al), % 0
10.7 to 11.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 10.5 to 12.5
0
Cobalt (Co), % 0
1.0 to 2.0
Copper (Cu), % 0
68.6 to 74.4
Iron (Fe), % 83.9 to 89.2
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 0.3 to 1.0
13.5 to 16.5
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.020
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.050
Residuals, % 0
0 to 0.3