C55282 Copper vs. SAE-AISI H21 Steel

C55282 copper belongs to the copper alloys classification, while SAE-AISI H21 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C55282 copper and the bottom bar is SAE-AISI H21 steel.

UNS C55282 (BCuP-7) Filler Metal SAE-AISI H21 (T20821) Tungsten Hot-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.34
Poisson's Ratio		0.29

Shear Modulus, GPa		39
Shear Modulus, GPa		76

Tensile Strength: Ultimate (UTS), MPa		180
Tensile Strength: Ultimate (UTS), MPa		720 to 1790

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		250

Melting Completion (Liquidus), °C		770
Melting Completion (Liquidus), °C		1630

Melting Onset (Solidus), °C		640
Melting Onset (Solidus), °C		1580

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		440

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

Otherwise Unclassified Properties

Density, g/cm³		8.6
Density, g/cm³		8.5

Embodied Carbon, kg CO₂/kg material		7.0
Embodied Carbon, kg CO₂/kg material		4.5

Embodied Energy, MJ/kg		110
Embodied Energy, MJ/kg		68

Common Calculations

Stiffness to Weight: Axial, points		6.8
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		5.8
Strength to Weight: Axial, points		23 to 58

Strength to Weight: Bending, points		8.2
Strength to Weight: Bending, points		21 to 38

Thermal Shock Resistance, points		7.4
Thermal Shock Resistance, points		24 to 59

Alloy Composition

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Carbon (C), %		0
Carbon (C), %		0.28 to 0.36

Chromium (Cr), %		0
Chromium (Cr), %		3.0 to 3.8

Copper (Cu), %		87.7 to 88.7
Copper (Cu), %		0 to 0.25

Iron (Fe), %		0
Iron (Fe), %		87.6 to 93.8

Manganese (Mn), %		0
Manganese (Mn), %		0.15 to 0.4

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

Phosphorus (P), %		6.5 to 7.0
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0
Silicon (Si), %		0.15 to 0.5

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

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

Tungsten (W), %		0
Tungsten (W), %		8.5 to 10

Vanadium (V), %		0
Vanadium (V), %		0.3 to 0.6

Residuals, %		0 to 0.15
Residuals, %		0