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S31727 Stainless Steel vs. C19025 Copper

S31727 stainless steel belongs to the iron alloys classification, while C19025 copper belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is C19025 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 40
8.0 to 17
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 78
43
Shear Strength, MPa 430
300 to 360
Tensile Strength: Ultimate (UTS), MPa 630
480 to 620

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 1010
200
Melting Completion (Liquidus), °C 1440
1080
Melting Onset (Solidus), °C 1390
1020
Specific Heat Capacity, J/kg-K 470
380
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
31
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 4.7
2.8
Embodied Energy, MJ/kg 64
44
Embodied Water, L/kg 180
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 22
15 to 19
Strength to Weight: Bending, points 20
15 to 18
Thermal Shock Resistance, points 14
17 to 22

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
97.1 to 98.5
Iron (Fe), % 53.7 to 61.3
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
0.8 to 1.2
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0.030 to 0.070
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.7 to 1.1
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.3