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ASTM A387 Grade 21L Class 1 vs. CC751S Brass

ASTM A387 grade 21L class 1 belongs to the iron alloys classification, while CC751S 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 A387 grade 21L class 1 and the bottom bar is CC751S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
130
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 21
5.6
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 74
40
Tensile Strength: Ultimate (UTS), MPa 500
450
Tensile Strength: Yield (Proof), MPa 230
320

Thermal Properties

Latent Heat of Fusion, J/g 260
190
Maximum Temperature: Mechanical, °C 480
130
Melting Completion (Liquidus), °C 1470
850
Melting Onset (Solidus), °C 1430
810
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 41
110
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
28

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
24
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 1.8
2.8
Embodied Energy, MJ/kg 23
46
Embodied Water, L/kg 62
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
23
Resilience: Unit (Modulus of Resilience), kJ/m3 140
480
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 18
15
Strength to Weight: Bending, points 18
16
Thermal Diffusivity, mm2/s 11
35
Thermal Shock Resistance, points 14
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0
0 to 0.5
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 2.8 to 3.3
0
Copper (Cu), % 0
62.7 to 66
Iron (Fe), % 94.4 to 96.1
0.25 to 0.5
Lead (Pb), % 0
0.8 to 2.2
Manganese (Mn), % 0.3 to 0.6
0 to 0.15
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
0 to 0.8
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0.65 to 1.1
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0 to 0.8
Zinc (Zn), % 0
27.9 to 35.6