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ASTM A369 Grade FP21 vs. C49300 Brass

ASTM A369 grade FP21 belongs to the iron alloys classification, while C49300 brass 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 A369 grade FP21 and the bottom bar is C49300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 20
4.5 to 20
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 74
40
Shear Strength, MPa 300
270 to 290
Tensile Strength: Ultimate (UTS), MPa 470
430 to 520
Tensile Strength: Yield (Proof), MPa 240
210 to 410

Thermal Properties

Latent Heat of Fusion, J/g 260
170
Maximum Temperature: Mechanical, °C 470
120
Melting Completion (Liquidus), °C 1470
880
Melting Onset (Solidus), °C 1430
840
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 41
88
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
15
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
17

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
26
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.8
3.0
Embodied Energy, MJ/kg 23
50
Embodied Water, L/kg 61
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
21 to 71
Resilience: Unit (Modulus of Resilience), kJ/m3 150
220 to 800
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 17
15 to 18
Strength to Weight: Bending, points 17
16 to 18
Thermal Diffusivity, mm2/s 11
29
Thermal Shock Resistance, points 14
14 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Antimony (Sb), % 0
0 to 0.5
Bismuth (Bi), % 0
0.5 to 2.0
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 2.7 to 3.4
0
Copper (Cu), % 0
58 to 62
Iron (Fe), % 94.3 to 96.2
0 to 0.1
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 0.3 to 0.6
0 to 0.030
Molybdenum (Mo), % 0.8 to 1.1
0
Nickel (Ni), % 0
0 to 1.5
Phosphorus (P), % 0 to 0.025
0 to 0.2
Selenium (Se), % 0
0 to 0.2
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
1.0 to 1.8
Zinc (Zn), % 0
30.6 to 40.5
Residuals, % 0
0 to 0.5