SAE-AISI A4 Steel vs. C14180 Copper

SAE-AISI A4 steel belongs to the iron alloys classification, while C14180 copper belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A4 steel and the bottom bar is C14180 copper.

SAE-AISI A4 (T30104) Air-Hardening Steel UNS C14180 (BCu-1) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.29
Poisson's Ratio		0.34

Shear Modulus, GPa		73
Shear Modulus, GPa		43

Tensile Strength: Ultimate (UTS), MPa		710 to 2050
Tensile Strength: Ultimate (UTS), MPa		210

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		210

Melting Completion (Liquidus), °C		1450
Melting Completion (Liquidus), °C		1080

Melting Onset (Solidus), °C		1410
Melting Onset (Solidus), °C		1080

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		390

Thermal Conductivity, W/m-K		40
Thermal Conductivity, W/m-K		370

Thermal Expansion, µm/m-K		12
Thermal Expansion, µm/m-K		17

Otherwise Unclassified Properties

Base Metal Price, % relative		3.9
Base Metal Price, % relative		31

Density, g/cm³		7.8
Density, g/cm³		9.0

Embodied Carbon, kg CO₂/kg material		1.8
Embodied Carbon, kg CO₂/kg material		2.6

Embodied Energy, MJ/kg		24
Embodied Energy, MJ/kg		41

Embodied Water, L/kg		59
Embodied Water, L/kg		310

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		7.2

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		25 to 73
Strength to Weight: Axial, points		6.5

Strength to Weight: Bending, points		23 to 46
Strength to Weight: Bending, points		8.8

Thermal Diffusivity, mm²/s		11
Thermal Diffusivity, mm²/s		110

Thermal Shock Resistance, points		23 to 67
Thermal Shock Resistance, points		7.4

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.010

Carbon (C), %		1.0 to 1.1
Carbon (C), %		0

Chromium (Cr), %		0.9 to 2.2
Chromium (Cr), %		0

Copper (Cu), %		0 to 0.25
Copper (Cu), %		99.9 to 100

Iron (Fe), %		92 to 95.5
Iron (Fe), %		0

Lead (Pb), %		0
Lead (Pb), %		0 to 0.020

Manganese (Mn), %		1.8 to 2.2
Manganese (Mn), %		0

Molybdenum (Mo), %		0.9 to 1.4
Molybdenum (Mo), %		0

Nickel (Ni), %		0 to 0.3
Nickel (Ni), %		0

Phosphorus (P), %		0 to 0.030
Phosphorus (P), %		0 to 0.075

Silicon (Si), %		0 to 0.5
Silicon (Si), %		0

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