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ASTM Grade HI Steel vs. CR018A Copper

ASTM grade HI steel belongs to the iron alloys classification, while CR018A 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 grade HI steel and the bottom bar is CR018A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 11
15
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 79
43
Tensile Strength: Ultimate (UTS), MPa 550
220
Tensile Strength: Yield (Proof), MPa 270
130

Thermal Properties

Latent Heat of Fusion, J/g 310
210
Maximum Temperature: Mechanical, °C 1100
200
Melting Completion (Liquidus), °C 1400
1090
Melting Onset (Solidus), °C 1350
1040
Specific Heat Capacity, J/kg-K 490
390
Thermal Conductivity, W/m-K 15
390
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
100
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
100

Otherwise Unclassified Properties

Base Metal Price, % relative 23
33
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 4.1
2.7
Embodied Energy, MJ/kg 59
42
Embodied Water, L/kg 200
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
29
Resilience: Unit (Modulus of Resilience), kJ/m3 180
76
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 20
6.8
Strength to Weight: Bending, points 19
9.0
Thermal Diffusivity, mm2/s 3.9
110
Thermal Shock Resistance, points 12
7.8

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0.2 to 0.5
0
Chromium (Cr), % 26 to 30
0
Copper (Cu), % 0
99.914 to 99.94
Iron (Fe), % 46.9 to 59.8
0
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 14 to 18
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Silver (Ag), % 0
0.060 to 0.080
Sulfur (S), % 0 to 0.040
0