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ASTM A302 Alloy Steel vs. C38500 Bronze

ASTM A302 alloy steel belongs to the iron alloys classification, while C38500 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is C38500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 20 to 23
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
37
Shear Strength, MPa 370 to 390
230
Tensile Strength: Ultimate (UTS), MPa 590 to 620
370
Tensile Strength: Yield (Proof), MPa 350 to 390
130

Thermal Properties

Latent Heat of Fusion, J/g 250
160
Maximum Temperature: Mechanical, °C 410
110
Melting Completion (Liquidus), °C 1460
890
Melting Onset (Solidus), °C 1420
880
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 39 to 51
120
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.4
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.4
31

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 3.0
22
Density, g/cm3 7.8 to 7.9
8.1
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
2.6
Embodied Energy, MJ/kg 20 to 21
45
Embodied Water, L/kg 48 to 50
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
48
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 410
78
Stiffness to Weight: Axial, points 13
7.0
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 21 to 22
13
Strength to Weight: Bending, points 20 to 21
14
Thermal Diffusivity, mm2/s 10 to 14
40
Thermal Shock Resistance, points 17 to 18
12