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ASTM A387 Grade 9 Steel vs. C37700 Brass

ASTM A387 grade 9 steel belongs to the iron alloys classification, while C37700 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 9 steel and the bottom bar is C37700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 20 to 21
40
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 75
39
Shear Strength, MPa 310 to 380
270
Tensile Strength: Ultimate (UTS), MPa 500 to 600
400
Tensile Strength: Yield (Proof), MPa 230 to 350
160

Thermal Properties

Latent Heat of Fusion, J/g 270
170
Maximum Temperature: Mechanical, °C 600
120
Melting Completion (Liquidus), °C 1460
890
Melting Onset (Solidus), °C 1410
880
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 26
120
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 10
30

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
23
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.1
2.6
Embodied Energy, MJ/kg 28
45
Embodied Water, L/kg 87
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 310
120
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 18 to 21
14
Strength to Weight: Bending, points 18 to 20
15
Thermal Diffusivity, mm2/s 6.9
39
Thermal Shock Resistance, points 14 to 17
13

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 8.0 to 10
0
Copper (Cu), % 0
58 to 61
Iron (Fe), % 87.1 to 90.8
0 to 0.3
Lead (Pb), % 0
1.5 to 2.5
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.025
0
Vanadium (V), % 0 to 0.040
0
Zinc (Zn), % 0
35.7 to 40.5
Residuals, % 0
0 to 0.5