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S20910 Stainless Steel vs. C17500 Copper

S20910 stainless steel belongs to the iron alloys classification, while C17500 copper belongs to the copper alloys. There are 28 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 S20910 stainless steel and the bottom bar is C17500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 14 to 39
6.0 to 30
Fatigue Strength, MPa 310 to 460
170 to 310
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
45
Shear Strength, MPa 500 to 570
200 to 520
Tensile Strength: Ultimate (UTS), MPa 780 to 940
310 to 860
Tensile Strength: Yield (Proof), MPa 430 to 810
170 to 760

Thermal Properties

Latent Heat of Fusion, J/g 300
220
Maximum Temperature: Mechanical, °C 1080
220
Melting Completion (Liquidus), °C 1420
1060
Melting Onset (Solidus), °C 1380
1020
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 13
200
Thermal Expansion, µm/m-K 16
18

Otherwise Unclassified Properties

Base Metal Price, % relative 22
60
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 4.8
4.7
Embodied Energy, MJ/kg 68
73
Embodied Water, L/kg 180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
30 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
120 to 2390
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 28 to 33
9.7 to 27
Strength to Weight: Bending, points 24 to 27
11 to 23
Thermal Diffusivity, mm2/s 3.6
59
Thermal Shock Resistance, points 17 to 21
11 to 29

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Beryllium (Be), % 0
0.4 to 0.7
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Cobalt (Co), % 0
2.4 to 2.7
Copper (Cu), % 0
95.6 to 97.2
Iron (Fe), % 52.1 to 62.1
0 to 0.1
Manganese (Mn), % 4.0 to 6.0
0
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0 to 0.2
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0
Residuals, % 0
0 to 0.5