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ASTM A387 Grade 21L Class 1 vs. C14500 Copper

ASTM A387 grade 21L class 1 belongs to the iron alloys classification, while C14500 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 21L class 1 and the bottom bar is C14500 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 21
12 to 50
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 74
43
Shear Strength, MPa 310
150 to 190
Tensile Strength: Ultimate (UTS), MPa 500
220 to 330
Tensile Strength: Yield (Proof), MPa 230
69 to 260

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Maximum Temperature: Mechanical, °C 480
200
Melting Completion (Liquidus), °C 1470
1080
Melting Onset (Solidus), °C 1430
1050
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 41
360
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
94
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
95

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
33
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 1.8
2.6
Embodied Energy, MJ/kg 23
42
Embodied Water, L/kg 62
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
36 to 85
Resilience: Unit (Modulus of Resilience), kJ/m3 140
21 to 300
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 18
6.8 to 10
Strength to Weight: Bending, points 18
9.1 to 12
Thermal Diffusivity, mm2/s 11
100
Thermal Shock Resistance, points 14
8.0 to 12

Alloy Composition

Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 2.8 to 3.3
0
Copper (Cu), % 0
99.2 to 99.596
Iron (Fe), % 94.4 to 96.1
0
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0.0040 to 0.012
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.025
0
Tellurium (Te), % 0
0.4 to 0.7