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EN 1.4938 Stainless Steel vs. CR017A Copper

EN 1.4938 stainless steel belongs to the iron alloys classification, while CR017A copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4938 stainless steel and the bottom bar is CR017A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 16 to 17
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
43
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
230
Tensile Strength: Yield (Proof), MPa 640 to 870
140

Thermal Properties

Latent Heat of Fusion, J/g 270
210
Maximum Temperature: Mechanical, °C 750
200
Melting Completion (Liquidus), °C 1460
1090
Melting Onset (Solidus), °C 1420
1040
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 30
380
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
100
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
100

Otherwise Unclassified Properties

Base Metal Price, % relative 10
32
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 3.3
2.6
Embodied Energy, MJ/kg 47
42
Embodied Water, L/kg 110
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
31
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
83
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 31 to 37
7.1
Strength to Weight: Bending, points 26 to 29
9.3
Thermal Diffusivity, mm2/s 8.1
110
Thermal Shock Resistance, points 30 to 35
8.1

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0.080 to 0.15
0
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 0
99.944 to 99.97
Iron (Fe), % 80.5 to 84.8
0
Manganese (Mn), % 0.4 to 0.9
0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
0
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0
Silver (Ag), % 0
0.030 to 0.050
Sulfur (S), % 0 to 0.015
0
Vanadium (V), % 0.25 to 0.4
0