AISI 444 Stainless Steel vs. C55282 Copper

AISI 444 stainless steel belongs to the iron alloys classification, while C55282 copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is AISI 444 stainless steel and the bottom bar is C55282 copper.

AISI 444 (S44400) Stainless Steel UNS C55282 (BCuP-7) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		110

Poisson's Ratio		0.28
Poisson's Ratio		0.34

Shear Modulus, GPa		78
Shear Modulus, GPa		39

Tensile Strength: Ultimate (UTS), MPa		470
Tensile Strength: Ultimate (UTS), MPa		180

Thermal Properties

Latent Heat of Fusion, J/g		290
Latent Heat of Fusion, J/g		190

Maximum Temperature: Mechanical, °C		930
Maximum Temperature: Mechanical, °C		200

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

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

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

Thermal Expansion, µm/m-K		10
Thermal Expansion, µm/m-K		16

Otherwise Unclassified Properties

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

Embodied Carbon, kg CO₂/kg material		3.4
Embodied Carbon, kg CO₂/kg material		7.0

Embodied Energy, MJ/kg		47
Embodied Energy, MJ/kg		110

Common Calculations

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		6.8

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

Strength to Weight: Axial, points		17
Strength to Weight: Axial, points		5.8

Strength to Weight: Bending, points		17
Strength to Weight: Bending, points		8.2

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		7.4

Alloy Composition

Carbon (C), %		0 to 0.025
Carbon (C), %		0

Chromium (Cr), %		17.5 to 19.5
Chromium (Cr), %		0

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

Iron (Fe), %		73.3 to 80.8
Iron (Fe), %		0

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

Molybdenum (Mo), %		1.8 to 2.5
Molybdenum (Mo), %		0

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

Niobium (Nb), %		0.2 to 0.8
Niobium (Nb), %		0

Nitrogen (N), %		0 to 0.035
Nitrogen (N), %		0

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

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

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

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

Titanium (Ti), %		0.2 to 0.8
Titanium (Ti), %		0

Residuals, %		0
Residuals, %		0 to 0.15