C10300 Copper vs. EN 1.4729 Stainless Steel

C10300 copper belongs to the copper alloys classification, while EN 1.4729 stainless steel belongs to the iron alloys. There are 21 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 C10300 copper and the bottom bar is EN 1.4729 stainless steel.

UNS C10300 (CW020A) Oxyben-Free Low-Phosphorus Copper EN 1.4729 (GX40CrSi13) Cast Stainless Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		120
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		2.6 to 50
Elongation at Break, %		15

Poisson's Ratio		0.34
Poisson's Ratio		0.28

Shear Modulus, GPa		43
Shear Modulus, GPa		75

Thermal Properties

Latent Heat of Fusion, J/g		210
Latent Heat of Fusion, J/g		300

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		850

Melting Completion (Liquidus), °C		1080
Melting Completion (Liquidus), °C		1420

Melting Onset (Solidus), °C		1080
Melting Onset (Solidus), °C		1380

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		490

Thermal Conductivity, W/m-K		390
Thermal Conductivity, W/m-K		24

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		99
Electrical Conductivity: Equal Volume, % IACS		2.8

Electrical Conductivity: Equal Weight (Specific), % IACS		99
Electrical Conductivity: Equal Weight (Specific), % IACS		3.3

Otherwise Unclassified Properties

Base Metal Price, % relative		31
Base Metal Price, % relative		7.5

Density, g/cm³		9.0
Density, g/cm³		7.6

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		2.1

Embodied Energy, MJ/kg		41
Embodied Energy, MJ/kg		29

Embodied Water, L/kg		310
Embodied Water, L/kg		100

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		25

Thermal Diffusivity, mm²/s		110
Thermal Diffusivity, mm²/s		6.5

Alloy Composition

Carbon (C), %		0
Carbon (C), %		0.3 to 0.5

Chromium (Cr), %		0
Chromium (Cr), %		12 to 14

Copper (Cu), %		99.95 to 99.999
Copper (Cu), %		0

Iron (Fe), %		0
Iron (Fe), %		80.4 to 86.7

Manganese (Mn), %		0
Manganese (Mn), %		0 to 1.0

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0 to 0.5

Nickel (Ni), %		0
Nickel (Ni), %		0 to 1.0

Phosphorus (P), %		0.0010 to 0.0050
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0
Silicon (Si), %		1.0 to 2.5

Sulfur (S), %		0
Sulfur (S), %		0 to 0.030