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S45000 Stainless Steel vs. C71520 Copper-nickel

S45000 stainless steel belongs to the iron alloys classification, while C71520 copper-nickel belongs to the copper alloys. There are 29 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 S45000 stainless steel and the bottom bar is C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 6.8 to 14
10 to 45
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
51
Shear Strength, MPa 590 to 830
250 to 340
Tensile Strength: Ultimate (UTS), MPa 980 to 1410
370 to 570
Tensile Strength: Yield (Proof), MPa 580 to 1310
140 to 430

Thermal Properties

Latent Heat of Fusion, J/g 280
230
Maximum Temperature: Mechanical, °C 840
260
Melting Completion (Liquidus), °C 1440
1170
Melting Onset (Solidus), °C 1390
1120
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 17
32
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
5.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
40
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 2.8
5.0
Embodied Energy, MJ/kg 39
73
Embodied Water, L/kg 130
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 94 to 160
54 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 850 to 4400
67 to 680
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 35 to 50
12 to 18
Strength to Weight: Bending, points 28 to 36
13 to 17
Thermal Diffusivity, mm2/s 4.5
8.9
Thermal Shock Resistance, points 33 to 47
12 to 19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.050
Chromium (Cr), % 14 to 16
0
Copper (Cu), % 1.3 to 1.8
65 to 71.6
Iron (Fe), % 72.1 to 79.3
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.5 to 1.0
0
Nickel (Ni), % 5.0 to 7.0
28 to 33
Phosphorus (P), % 0 to 0.040
0 to 0.2
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.020
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5