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EN 1.4938 Stainless Steel vs. C82700 Copper

EN 1.4938 stainless steel belongs to the iron alloys classification, while C82700 copper belongs to the copper alloys. There are 27 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 EN 1.4938 stainless steel and the bottom bar is C82700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 16 to 17
1.8
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
46
Tensile Strength: Ultimate (UTS), MPa 870 to 1030
1200
Tensile Strength: Yield (Proof), MPa 640 to 870
1020

Thermal Properties

Latent Heat of Fusion, J/g 270
240
Maximum Temperature: Mechanical, °C 750
300
Melting Completion (Liquidus), °C 1460
950
Melting Onset (Solidus), °C 1420
860
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 30
130
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
20
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
21

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 3.3
12
Embodied Energy, MJ/kg 47
180
Embodied Water, L/kg 110
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
21
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1920
4260
Stiffness to Weight: Axial, points 14
7.8
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 31 to 37
38
Strength to Weight: Bending, points 26 to 29
29
Thermal Diffusivity, mm2/s 8.1
39
Thermal Shock Resistance, points 30 to 35
41

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Beryllium (Be), % 0
2.4 to 2.6
Carbon (C), % 0.080 to 0.15
0
Chromium (Cr), % 11 to 12.5
0 to 0.090
Copper (Cu), % 0
94.6 to 96.7
Iron (Fe), % 80.5 to 84.8
0 to 0.25
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0.4 to 0.9
0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
1.0 to 1.5
Nitrogen (N), % 0.020 to 0.040
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0 to 0.15
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.1
Vanadium (V), % 0.25 to 0.4
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.5