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C81400 Copper vs. AISI 436 Stainless Steel

C81400 copper belongs to the copper alloys classification, while AISI 436 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C81400 copper and the bottom bar is AISI 436 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
25
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 69
77
Shear Modulus, GPa 41
77
Tensile Strength: Ultimate (UTS), MPa 370
500
Tensile Strength: Yield (Proof), MPa 250
270

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
880
Melting Completion (Liquidus), °C 1090
1450
Melting Onset (Solidus), °C 1070
1410
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 260
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 61
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 33
12
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 45
38
Embodied Water, L/kg 310
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
110
Resilience: Unit (Modulus of Resilience), kJ/m3 260
190
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 11
18
Strength to Weight: Bending, points 13
18
Thermal Diffusivity, mm2/s 75
6.7
Thermal Shock Resistance, points 13
18

Alloy Composition

Beryllium (Be), % 0.020 to 0.1
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0.6 to 1.0
16 to 18
Copper (Cu), % 98.4 to 99.38
0
Iron (Fe), % 0
77.8 to 83.3
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0.75 to 1.3
Niobium (Nb), % 0
0 to 0.8
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0