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S21603 Stainless Steel vs. C70700 Copper-nickel

S21603 stainless steel belongs to the iron alloys classification, while C70700 copper-nickel belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
73
Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 45
39
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
46
Shear Strength, MPa 490
220
Tensile Strength: Ultimate (UTS), MPa 690
320
Tensile Strength: Yield (Proof), MPa 390
110

Thermal Properties

Latent Heat of Fusion, J/g 290
220
Maximum Temperature: Mechanical, °C 990
220
Melting Completion (Liquidus), °C 1420
1120
Melting Onset (Solidus), °C 1380
1060
Specific Heat Capacity, J/kg-K 480
390
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 17
34
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 3.6
3.4
Embodied Energy, MJ/kg 50
52
Embodied Water, L/kg 160
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
100
Resilience: Unit (Modulus of Resilience), kJ/m3 380
51
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 25
10
Strength to Weight: Bending, points 22
12
Thermal Shock Resistance, points 15
12

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 22
0
Copper (Cu), % 0
88.5 to 90.5
Iron (Fe), % 57.6 to 67.8
0 to 0.050
Manganese (Mn), % 7.5 to 9.0
0 to 0.5
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
9.5 to 10.5
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.5