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ASTM A387 Grade 11 Steel vs. C21000 Brass

ASTM A387 grade 11 steel belongs to the iron alloys classification, while C21000 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 11 steel and the bottom bar is C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 25
2.9 to 50
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
43
Shear Strength, MPa 320 to 390
180 to 280
Tensile Strength: Ultimate (UTS), MPa 500 to 600
240 to 450
Tensile Strength: Yield (Proof), MPa 270 to 350
69 to 440

Thermal Properties

Latent Heat of Fusion, J/g 260
200
Maximum Temperature: Mechanical, °C 430
190
Melting Completion (Liquidus), °C 1460
1070
Melting Onset (Solidus), °C 1420
1050
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 39
230
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
56
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
57

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
30
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 1.6
2.6
Embodied Energy, MJ/kg 21
42
Embodied Water, L/kg 53
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
21 to 830
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 18 to 21
7.4 to 14
Strength to Weight: Bending, points 18 to 20
9.6 to 15
Thermal Diffusivity, mm2/s 11
69
Thermal Shock Resistance, points 15 to 18
8.1 to 15

Alloy Composition


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Carbon (C), % 0.050 to 0.17
0
Chromium (Cr), % 1.0 to 1.5
0
Copper (Cu), % 0
94 to 96
Iron (Fe), % 96.2 to 97.6
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.4 to 0.65
0
Molybdenum (Mo), % 0.45 to 0.65
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.5 to 0.8
0
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
3.7 to 6.0
Residuals, % 0
0 to 0.2