C55284 Copper vs. AISI 409Cb Stainless Steel

C55284 copper belongs to the copper alloys classification, while AISI 409Cb stainless steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is C55284 copper and the bottom bar is AISI 409Cb stainless steel.

UNS C55284 (BCuP-5) Filler Metal AISI 409Cb (S40940) Stainless Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.34
Poisson's Ratio		0.28

Shear Modulus, GPa		38
Shear Modulus, GPa		75

Tensile Strength: Ultimate (UTS), MPa		180
Tensile Strength: Ultimate (UTS), MPa		420

Thermal Properties

Latent Heat of Fusion, J/g		180
Latent Heat of Fusion, J/g		270

Maximum Temperature: Mechanical, °C		200
Maximum Temperature: Mechanical, °C		710

Melting Completion (Liquidus), °C		800
Melting Completion (Liquidus), °C		1450

Melting Onset (Solidus), °C		640
Melting Onset (Solidus), °C		1410

Specific Heat Capacity, J/kg-K		380
Specific Heat Capacity, J/kg-K		480

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

Otherwise Unclassified Properties

Density, g/cm³		8.9
Density, g/cm³		7.8

Embodied Carbon, kg CO₂/kg material		16
Embodied Carbon, kg CO₂/kg material		2.2

Embodied Energy, MJ/kg		260
Embodied Energy, MJ/kg		31

Common Calculations

Stiffness to Weight: Axial, points		6.5
Stiffness to Weight: Axial, points		14

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

Strength to Weight: Axial, points		5.6
Strength to Weight: Axial, points		15

Strength to Weight: Bending, points		8.0
Strength to Weight: Bending, points		16

Thermal Shock Resistance, points		7.4
Thermal Shock Resistance, points		15

Alloy Composition

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Carbon (C), %		0
Carbon (C), %		0 to 0.060

Chromium (Cr), %		0
Chromium (Cr), %		10.5 to 11.7

Copper (Cu), %		79.2 to 80.7
Copper (Cu), %		0

Iron (Fe), %		0
Iron (Fe), %		84.9 to 89.5

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

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.5

Niobium (Nb), %		0
Niobium (Nb), %		0 to 0.75

Phosphorus (P), %		4.8 to 5.2
Phosphorus (P), %		0 to 0.045

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

Silver (Ag), %		14.5 to 15.5
Silver (Ag), %		0

Sulfur (S), %		0
Sulfur (S), %		0 to 0.040

Residuals, %		0 to 0.15
Residuals, %		0