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ASTM A387 Grade 11 Steel vs. CR021A Copper

ASTM A387 grade 11 steel belongs to the iron alloys classification, while CR021A copper belongs to the copper alloys. There are 28 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 11 steel and the bottom bar is CR021A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 25
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
43
Tensile Strength: Ultimate (UTS), MPa 500 to 600
230
Tensile Strength: Yield (Proof), MPa 270 to 350
140

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Maximum Temperature: Mechanical, °C 430
200
Melting Completion (Liquidus), °C 1460
1090
Melting Onset (Solidus), °C 1420
1040
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 39
380
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
98
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
99

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
31
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 1.6
2.6
Embodied Energy, MJ/kg 21
41
Embodied Water, L/kg 53
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
31
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
83
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 18 to 21
7.1
Strength to Weight: Bending, points 18 to 20
9.3
Thermal Diffusivity, mm2/s 11
110
Thermal Shock Resistance, points 15 to 18
8.1

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0.050 to 0.17
0
Chromium (Cr), % 1.0 to 1.5
0
Copper (Cu), % 0
99.95 to 99.998
Iron (Fe), % 96.2 to 97.6
0
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0.4 to 0.65
0
Molybdenum (Mo), % 0.45 to 0.65
0
Phosphorus (P), % 0 to 0.025
0.0020 to 0.0070
Silicon (Si), % 0.5 to 0.8
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.025
0