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S35045 Stainless Steel vs. CR021A Copper

S35045 stainless steel belongs to the iron alloys classification, while CR021A 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 S35045 stainless steel and the bottom bar is CR021A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 39
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 78
43
Tensile Strength: Ultimate (UTS), MPa 540
230
Tensile Strength: Yield (Proof), MPa 190
140

Thermal Properties

Latent Heat of Fusion, J/g 310
210
Maximum Temperature: Mechanical, °C 1100
200
Melting Completion (Liquidus), °C 1390
1090
Melting Onset (Solidus), °C 1340
1040
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 12
380
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
98
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
99

Otherwise Unclassified Properties

Base Metal Price, % relative 34
31
Density, g/cm3 8.0
9.0
Embodied Carbon, kg CO2/kg material 5.8
2.6
Embodied Energy, MJ/kg 83
41
Embodied Water, L/kg 230
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
31
Resilience: Unit (Modulus of Resilience), kJ/m3 94
83
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 19
7.1
Strength to Weight: Bending, points 19
9.3
Thermal Diffusivity, mm2/s 3.2
110
Thermal Shock Resistance, points 12
8.1

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
0
Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0.060 to 0.1
0
Chromium (Cr), % 25 to 29
0
Copper (Cu), % 0 to 0.75
99.95 to 99.998
Iron (Fe), % 29.4 to 42.6
0
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 32 to 37
0
Phosphorus (P), % 0 to 0.045
0.0020 to 0.0070
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
0