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CC381H Copper-nickel vs. ASTM A387 Grade 21L Class 1

CC381H copper-nickel belongs to the copper alloys classification, while ASTM A387 grade 21L class 1 belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is CC381H copper-nickel and the bottom bar is ASTM A387 grade 21L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
150
Elastic (Young's, Tensile) Modulus, GPa 140
190
Elongation at Break, % 20
21
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 52
74
Tensile Strength: Ultimate (UTS), MPa 380
500
Tensile Strength: Yield (Proof), MPa 140
230

Thermal Properties

Latent Heat of Fusion, J/g 240
260
Maximum Temperature: Mechanical, °C 260
480
Melting Completion (Liquidus), °C 1180
1470
Melting Onset (Solidus), °C 1120
1430
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 30
41
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 40
4.1
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 5.0
1.8
Embodied Energy, MJ/kg 73
23
Embodied Water, L/kg 280
62

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
84
Resilience: Unit (Modulus of Resilience), kJ/m3 68
140
Stiffness to Weight: Axial, points 8.6
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12
18
Strength to Weight: Bending, points 13
18
Thermal Diffusivity, mm2/s 8.4
11
Thermal Shock Resistance, points 13
14

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 64.5 to 69.9
0
Iron (Fe), % 0.5 to 1.5
94.4 to 96.1
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 29 to 31
0
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.025
Zinc (Zn), % 0 to 0.5
0