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EN 1.4945 Stainless Steel vs. C14181 Copper

EN 1.4945 stainless steel belongs to the iron alloys classification, while C14181 copper belongs to the copper alloys. There are 26 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 EN 1.4945 stainless steel and the bottom bar is C14181 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 19 to 34
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Tensile Strength: Ultimate (UTS), MPa 640 to 740
210
Tensile Strength: Yield (Proof), MPa 290 to 550
130

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 920
200
Melting Completion (Liquidus), °C 1490
1080
Melting Onset (Solidus), °C 1440
1080
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 14
380
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 30
31
Density, g/cm3 8.1
9.0
Embodied Carbon, kg CO2/kg material 5.0
2.6
Embodied Energy, MJ/kg 73
41
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
28
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
69
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 22 to 25
6.5
Strength to Weight: Bending, points 20 to 22
8.8
Thermal Diffusivity, mm2/s 3.7
110
Thermal Shock Resistance, points 14 to 16
7.4

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.040 to 0.1
0 to 0.0050
Chromium (Cr), % 15.5 to 17.5
0
Copper (Cu), % 0
99.9 to 100
Iron (Fe), % 57.9 to 65.7
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 15.5 to 17.5
0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.0020
Silicon (Si), % 0.3 to 0.6
0
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 2.5 to 3.5
0
Zinc (Zn), % 0
0 to 0.0020