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ASTM A387 Grade 91 Class 2 vs. C92200 Bronze

ASTM A387 grade 91 class 2 belongs to the iron alloys classification, while C92200 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 C92200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20
25
Fatigue Strength, MPa 330
76
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
41
Tensile Strength: Ultimate (UTS), MPa 670
280
Tensile Strength: Yield (Proof), MPa 470
140

Thermal Properties

Latent Heat of Fusion, J/g 270
190
Maximum Temperature: Mechanical, °C 600
170
Melting Completion (Liquidus), °C 1460
990
Melting Onset (Solidus), °C 1420
830
Specific Heat Capacity, J/kg-K 470
370
Thermal Conductivity, W/m-K 26
70
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
14
Electrical Conductivity: Equal Weight (Specific), % IACS 10
14

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
32
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 2.6
3.2
Embodied Energy, MJ/kg 37
52
Embodied Water, L/kg 88
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
58
Resilience: Unit (Modulus of Resilience), kJ/m3 580
87
Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 24
8.9
Strength to Weight: Bending, points 22
11
Thermal Diffusivity, mm2/s 6.9
21
Thermal Shock Resistance, points 19
9.9

Alloy Composition

Aluminum (Al), % 0 to 0.020
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0.080 to 0.12
0
Chromium (Cr), % 8.0 to 9.5
0
Copper (Cu), % 0
86 to 90
Iron (Fe), % 87.3 to 90.3
0 to 0.25
Lead (Pb), % 0
1.0 to 2.0
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
0 to 1.0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 1.5
Silicon (Si), % 0.2 to 0.5
0 to 0.0050
Sulfur (S), % 0 to 0.010
0 to 0.050
Tin (Sn), % 0
5.5 to 6.5
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0
Zinc (Zn), % 0
3.0 to 5.0
Zirconium (Zr), % 0 to 0.010
0
Residuals, % 0
0 to 0.7