C55282 Copper vs. S44735 Stainless Steel

C55282 copper belongs to the copper alloys classification, while S44735 stainless steel belongs to the iron alloys. There are 18 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 C55282 copper and the bottom bar is S44735 stainless steel.

UNS C55282 (BCuP-7) Filler Metal UNS S44735 (29-4C) Stainless Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		210

Poisson's Ratio		0.34
Poisson's Ratio		0.27

Shear Modulus, GPa		39
Shear Modulus, GPa		82

Tensile Strength: Ultimate (UTS), MPa		180
Tensile Strength: Ultimate (UTS), MPa		630

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		310

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		1100

Melting Completion (Liquidus), °C		770
Melting Completion (Liquidus), °C		1460

Melting Onset (Solidus), °C		640
Melting Onset (Solidus), °C		1420

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		11

Otherwise Unclassified Properties

Density, g/cm³		8.6
Density, g/cm³		7.7

Embodied Carbon, kg CO₂/kg material		7.0
Embodied Carbon, kg CO₂/kg material		4.4

Embodied Energy, MJ/kg		110
Embodied Energy, MJ/kg		61

Common Calculations

Stiffness to Weight: Axial, points		6.8
Stiffness to Weight: Axial, points		15

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		26

Strength to Weight: Axial, points		5.8
Strength to Weight: Axial, points		23

Strength to Weight: Bending, points		8.2
Strength to Weight: Bending, points		21

Thermal Shock Resistance, points		7.4
Thermal Shock Resistance, points		20

Alloy Composition

Carbon (C), %		0
Carbon (C), %		0 to 0.030

Chromium (Cr), %		0
Chromium (Cr), %		28 to 30

Copper (Cu), %		87.7 to 88.7
Copper (Cu), %		0

Iron (Fe), %		0
Iron (Fe), %		60.7 to 68.4

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

Molybdenum (Mo), %		0
Molybdenum (Mo), %		3.6 to 4.2

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

Niobium (Nb), %		0
Niobium (Nb), %		0.2 to 1.0

Nitrogen (N), %		0
Nitrogen (N), %		0 to 0.045

Phosphorus (P), %		6.5 to 7.0
Phosphorus (P), %		0 to 0.040

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

Silver (Ag), %		4.8 to 5.2
Silver (Ag), %		0

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

Titanium (Ti), %		0
Titanium (Ti), %		0.2 to 1.0

Residuals, %		0 to 0.15
Residuals, %		0