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ASTM Grade HK Steel vs. C91700 Bronze

ASTM grade HK steel belongs to the iron alloys classification, while C91700 bronze belongs to the copper 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 ASTM grade HK steel and the bottom bar is C91700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
90
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 11
13
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 79
41
Tensile Strength: Ultimate (UTS), MPa 500
330
Tensile Strength: Yield (Proof), MPa 270
170

Thermal Properties

Latent Heat of Fusion, J/g 310
190
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1400
1020
Melting Onset (Solidus), °C 1350
850
Specific Heat Capacity, J/kg-K 480
370
Thermal Conductivity, W/m-K 15
71
Thermal Expansion, µm/m-K 17
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 25
36
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 4.4
3.9
Embodied Energy, MJ/kg 63
63
Embodied Water, L/kg 200
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
35
Resilience: Unit (Modulus of Resilience), kJ/m3 190
140
Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 18
11
Strength to Weight: Bending, points 18
12
Thermal Diffusivity, mm2/s 3.9
22
Thermal Shock Resistance, points 11
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Carbon (C), % 0.2 to 0.6
0
Chromium (Cr), % 24 to 28
0
Copper (Cu), % 0
84.2 to 87.5
Iron (Fe), % 44.8 to 57.8
0 to 0.2
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 18 to 22
1.2 to 2.0
Phosphorus (P), % 0 to 0.040
0 to 0.3
Silicon (Si), % 0 to 2.0
0 to 0.0050
Sulfur (S), % 0 to 0.040
0 to 0.050
Tin (Sn), % 0
11.3 to 12.5
Zinc (Zn), % 0
0 to 0.25