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ASTM A387 Grade 91 Class 2 vs. C95500 Bronze

ASTM A387 grade 91 class 2 belongs to the iron alloys classification, while C95500 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 A387 grade 91 class 2 and the bottom bar is C95500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 20
8.4 to 10
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
44
Tensile Strength: Ultimate (UTS), MPa 670
700 to 850
Tensile Strength: Yield (Proof), MPa 470
320 to 470

Thermal Properties

Latent Heat of Fusion, J/g 270
230
Maximum Temperature: Mechanical, °C 600
230
Melting Completion (Liquidus), °C 1460
1050
Melting Onset (Solidus), °C 1420
1040
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 26
42
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
28
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.6
3.5
Embodied Energy, MJ/kg 37
57
Embodied Water, L/kg 88
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
58 to 61
Resilience: Unit (Modulus of Resilience), kJ/m3 580
420 to 950
Stiffness to Weight: Axial, points 14
8.0
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 24
24 to 29
Strength to Weight: Bending, points 22
21 to 24
Thermal Diffusivity, mm2/s 6.9
11
Thermal Shock Resistance, points 19
24 to 29

Alloy Composition

Aluminum (Al), % 0 to 0.020
10 to 11.5
Carbon (C), % 0.080 to 0.12
0
Chromium (Cr), % 8.0 to 9.5
0
Copper (Cu), % 0
78 to 84
Iron (Fe), % 87.3 to 90.3
3.0 to 5.0
Manganese (Mn), % 0.3 to 0.6
0 to 3.5
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
3.0 to 5.5
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.2 to 0.5
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0
Residuals, % 0
0 to 0.5