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AISI 304 Stainless Steel vs. C12900 Copper

AISI 304 stainless steel belongs to the iron alloys classification, while C12900 copper belongs to the copper alloys. There are 29 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 AISI 304 stainless steel and the bottom bar is C12900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 8.0 to 43
2.8 to 50
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
43
Shear Strength, MPa 400 to 690
150 to 210
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
220 to 420
Tensile Strength: Yield (Proof), MPa 230 to 860
75 to 380

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 710
200
Melting Completion (Liquidus), °C 1450
1080
Melting Onset (Solidus), °C 1400
1030
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 16
380
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
98
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
98

Otherwise Unclassified Properties

Base Metal Price, % relative 15
32
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 3.0
2.6
Embodied Energy, MJ/kg 43
41
Embodied Water, L/kg 150
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 250
11 to 88
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1870
24 to 640
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 21 to 42
6.8 to 13
Strength to Weight: Bending, points 20 to 32
9.1 to 14
Thermal Diffusivity, mm2/s 4.2
110
Thermal Shock Resistance, points 12 to 25
7.8 to 15

Alloy Composition

Antimony (Sb), % 0
0 to 0.0030
Arsenic (As), % 0
0 to 0.012
Bismuth (Bi), % 0
0 to 0.0030
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
99.88 to 100
Iron (Fe), % 66.5 to 74
0
Lead (Pb), % 0
0 to 0.0040
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.0 to 10.5
0 to 0.050
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Silver (Ag), % 0
0 to 0.054
Sulfur (S), % 0 to 0.030
0
Tellurium (Te), % 0
0 to 0.025