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ASTM A387 Grade 11 Steel vs. C68800 Brass

ASTM A387 grade 11 steel belongs to the iron alloys classification, while C68800 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 C68800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 25
2.0 to 36
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
41
Shear Strength, MPa 320 to 390
380 to 510
Tensile Strength: Ultimate (UTS), MPa 500 to 600
570 to 890
Tensile Strength: Yield (Proof), MPa 270 to 350
390 to 790

Thermal Properties

Latent Heat of Fusion, J/g 260
190
Maximum Temperature: Mechanical, °C 430
160
Melting Completion (Liquidus), °C 1460
960
Melting Onset (Solidus), °C 1420
950
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 39
40
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
18
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
20

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
26
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.6
2.8
Embodied Energy, MJ/kg 21
48
Embodied Water, L/kg 53
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
16 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
710 to 2860
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 18 to 21
19 to 30
Strength to Weight: Bending, points 18 to 20
19 to 25
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 15 to 18
19 to 30

Alloy Composition

Aluminum (Al), % 0
3.0 to 3.8
Carbon (C), % 0.050 to 0.17
0
Chromium (Cr), % 1.0 to 1.5
0
Cobalt (Co), % 0
0.25 to 0.55
Copper (Cu), % 0
70.8 to 75.5
Iron (Fe), % 96.2 to 97.6
0 to 0.2
Lead (Pb), % 0
0 to 0.050
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
21.3 to 24.1
Residuals, % 0
0 to 0.5