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S17700 Stainless Steel vs. C17000 Copper

S17700 stainless steel belongs to the iron alloys classification, while C17000 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 S17700 stainless steel and the bottom bar is C17000 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 1.0 to 23
1.1 to 31
Poisson's Ratio 0.28
0.33
Rockwell C Hardness 41 to 46
21 to 42
Shear Modulus, GPa 76
45
Shear Strength, MPa 740 to 940
320 to 750
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
490 to 1310
Tensile Strength: Yield (Proof), MPa 430 to 1210
160 to 1140

Thermal Properties

Latent Heat of Fusion, J/g 290
230
Maximum Temperature: Mechanical, °C 890
270
Melting Completion (Liquidus), °C 1440
980
Melting Onset (Solidus), °C 1400
870
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
22
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
22

Otherwise Unclassified Properties

Density, g/cm3 7.7
8.8
Embodied Carbon, kg CO2/kg material 2.8
8.7
Embodied Energy, MJ/kg 40
140
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 210
4.2 to 390
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3750
110 to 5420
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 42 to 59
15 to 41
Strength to Weight: Bending, points 32 to 40
16 to 30
Thermal Diffusivity, mm2/s 4.1
32
Thermal Shock Resistance, points 39 to 54
17 to 45

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0 to 0.2
Beryllium (Be), % 0
1.6 to 1.8
Carbon (C), % 0 to 0.090
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
96.3 to 98.2
Iron (Fe), % 70.5 to 76.8
0 to 0.4
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 6.5 to 7.8
0.2 to 0.6
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.5