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ASTM A387 Grade 21L Class 1 vs. C16200 Copper

ASTM A387 grade 21L class 1 belongs to the iron alloys classification, while C16200 copper belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 C16200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 21
2.0 to 56
Fatigue Strength, MPa 160
100 to 210
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 74
43
Shear Strength, MPa 310
190 to 390
Tensile Strength: Ultimate (UTS), MPa 500
240 to 550
Tensile Strength: Yield (Proof), MPa 230
48 to 470

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Maximum Temperature: Mechanical, °C 480
370
Melting Completion (Liquidus), °C 1470
1080
Melting Onset (Solidus), °C 1430
1030
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 41
360
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
90
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
90

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
30
Density, g/cm3 7.9
9.0
Embodied Carbon, kg CO2/kg material 1.8
2.6
Embodied Energy, MJ/kg 23
41
Embodied Water, L/kg 62
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
10 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 140
10 to 970
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 18
7.4 to 17
Strength to Weight: Bending, points 18
9.6 to 17
Thermal Diffusivity, mm2/s 11
100
Thermal Shock Resistance, points 14
8.7 to 20

Alloy Composition

Cadmium (Cd), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 2.8 to 3.3
0
Copper (Cu), % 0
98.6 to 99.3
Iron (Fe), % 94.4 to 96.1
0 to 0.2
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.025
0