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S45000 Stainless Steel vs. CC381H Copper-nickel

S45000 stainless steel belongs to the iron alloys classification, while CC381H copper-nickel belongs to the copper alloys. There are 29 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 S45000 stainless steel and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 410
91
Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 6.8 to 14
20
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
52
Tensile Strength: Ultimate (UTS), MPa 980 to 1410
380
Tensile Strength: Yield (Proof), MPa 580 to 1310
140

Thermal Properties

Latent Heat of Fusion, J/g 280
240
Maximum Temperature: Mechanical, °C 840
260
Melting Completion (Liquidus), °C 1440
1180
Melting Onset (Solidus), °C 1390
1120
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 17
30
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
6.9

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
60
Resilience: Unit (Modulus of Resilience), kJ/m3 850 to 4400
68
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 35 to 50
12
Strength to Weight: Bending, points 28 to 36
13
Thermal Diffusivity, mm2/s 4.5
8.4
Thermal Shock Resistance, points 33 to 47
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 14 to 16
0
Copper (Cu), % 1.3 to 1.8
64.5 to 69.9
Iron (Fe), % 72.1 to 79.3
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 1.0
0.6 to 1.2
Molybdenum (Mo), % 0.5 to 1.0
0
Nickel (Ni), % 5.0 to 7.0
29 to 31
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Zinc (Zn), % 0
0 to 0.5