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S20910 Stainless Steel vs. C70700 Copper-nickel

S20910 stainless steel belongs to the iron alloys classification, while C70700 copper-nickel belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S20910 stainless steel and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 290
73
Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 14 to 39
39
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
46
Shear Strength, MPa 500 to 570
220
Tensile Strength: Ultimate (UTS), MPa 780 to 940
320
Tensile Strength: Yield (Proof), MPa 430 to 810
110

Thermal Properties

Latent Heat of Fusion, J/g 300
220
Maximum Temperature: Mechanical, °C 1080
220
Melting Completion (Liquidus), °C 1420
1120
Melting Onset (Solidus), °C 1380
1060
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 13
59
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 22
34
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 4.8
3.4
Embodied Energy, MJ/kg 68
52
Embodied Water, L/kg 180
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
100
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
51
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 28 to 33
10
Strength to Weight: Bending, points 24 to 27
12
Thermal Diffusivity, mm2/s 3.6
17
Thermal Shock Resistance, points 17 to 21
12

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
88.5 to 90.5
Iron (Fe), % 52.1 to 62.1
0 to 0.050
Manganese (Mn), % 4.0 to 6.0
0 to 0.5
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
9.5 to 10.5
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
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0
Residuals, % 0
0 to 0.5