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S21460 Stainless Steel vs. C72700 Copper-nickel

S21460 stainless steel belongs to the iron alloys classification, while C72700 copper-nickel belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S21460 stainless steel and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 46
4.0 to 36
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
44
Shear Strength, MPa 580
310 to 620
Tensile Strength: Ultimate (UTS), MPa 830
460 to 1070
Tensile Strength: Yield (Proof), MPa 430
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 920
200
Melting Completion (Liquidus), °C 1380
1100
Melting Onset (Solidus), °C 1330
930
Specific Heat Capacity, J/kg-K 480
380
Thermal Expansion, µm/m-K 18
17

Otherwise Unclassified Properties

Base Metal Price, % relative 14
36
Density, g/cm3 7.6
8.8
Embodied Carbon, kg CO2/kg material 3.0
4.0
Embodied Energy, MJ/kg 43
62
Embodied Water, L/kg 160
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 460
1420 to 4770
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 30
14 to 34
Strength to Weight: Bending, points 26
15 to 26
Thermal Shock Resistance, points 17
16 to 38

Alloy Composition

Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
82.1 to 86
Iron (Fe), % 57.3 to 63.7
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 14 to 16
0.050 to 0.3
Nickel (Ni), % 5.0 to 6.0
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
5.5 to 6.5
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3