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ASTM Grade HK Steel vs. C75700 Nickel Silver

ASTM grade HK steel belongs to the iron alloys classification, while C75700 nickel silver belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HK steel and the bottom bar is C75700 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 11
3.2 to 22
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 79
45
Tensile Strength: Ultimate (UTS), MPa 500
590 to 610
Tensile Strength: Yield (Proof), MPa 270
470 to 580

Thermal Properties

Latent Heat of Fusion, J/g 310
200
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1400
1040
Melting Onset (Solidus), °C 1350
990
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 25
30
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 4.4
3.6
Embodied Energy, MJ/kg 63
56
Embodied Water, L/kg 200
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
19 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
930 to 1410
Stiffness to Weight: Axial, points 14
7.8
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 18
19 to 20
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 11
22 to 23

Alloy Composition

Carbon (C), % 0.2 to 0.6
0
Chromium (Cr), % 24 to 28
0
Copper (Cu), % 0
63.5 to 66.5
Iron (Fe), % 44.8 to 57.8
0 to 0.25
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 18 to 22
11 to 13
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
19.2 to 25.5
Residuals, % 0
0 to 0.5