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ASTM Grade HK Steel vs. C96300 Copper-nickel

ASTM grade HK steel belongs to the iron alloys classification, while C96300 copper-nickel belongs to the copper alloys. They have a modest 22% of their average alloy composition in common, which, by itself, doesn't mean much. 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 ASTM grade HK steel and the bottom bar is C96300 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
150
Elastic (Young's, Tensile) Modulus, GPa 200
130
Elongation at Break, % 11
11
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
49
Tensile Strength: Ultimate (UTS), MPa 500
580
Tensile Strength: Yield (Proof), MPa 270
430

Thermal Properties

Latent Heat of Fusion, J/g 310
230
Maximum Temperature: Mechanical, °C 1100
240
Melting Completion (Liquidus), °C 1400
1200
Melting Onset (Solidus), °C 1350
1150
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 15
37
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
6.1

Otherwise Unclassified Properties

Base Metal Price, % relative 25
42
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 4.4
5.1
Embodied Energy, MJ/kg 63
76
Embodied Water, L/kg 200
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
59
Resilience: Unit (Modulus of Resilience), kJ/m3 190
720
Stiffness to Weight: Axial, points 14
8.2
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 18
18
Strength to Weight: Bending, points 18
17
Thermal Diffusivity, mm2/s 3.9
10
Thermal Shock Resistance, points 11
20

Alloy Composition

Carbon (C), % 0.2 to 0.6
0 to 0.15
Chromium (Cr), % 24 to 28
0
Copper (Cu), % 0
72.3 to 80.8
Iron (Fe), % 44.8 to 57.8
0.5 to 1.5
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 0 to 2.0
0.25 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 18 to 22
18 to 22
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.020
Residuals, % 0
0 to 0.5