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ASTM A369 Grade FP21 vs. C64210 Bronze

ASTM A369 grade FP21 belongs to the iron alloys classification, while C64210 bronze belongs to the copper alloys. There are 29 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 A369 grade FP21 and the bottom bar is C64210 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20
35
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 74
42
Shear Strength, MPa 300
380
Tensile Strength: Ultimate (UTS), MPa 470
570
Tensile Strength: Yield (Proof), MPa 240
290

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 470
210
Melting Completion (Liquidus), °C 1470
1040
Melting Onset (Solidus), °C 1430
990
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 41
48
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
13
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
14

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
29
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.8
3.0
Embodied Energy, MJ/kg 23
49
Embodied Water, L/kg 61
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
170
Resilience: Unit (Modulus of Resilience), kJ/m3 150
360
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 14
21

Alloy Composition

Aluminum (Al), % 0
6.3 to 7.0
Arsenic (As), % 0
0 to 0.15
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 2.7 to 3.4
0
Copper (Cu), % 0
89 to 92.2
Iron (Fe), % 94.3 to 96.2
0 to 0.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.3 to 0.6
0 to 0.1
Molybdenum (Mo), % 0.8 to 1.1
0
Nickel (Ni), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
1.5 to 2.0
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5