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ASTM A387 Grade 21L Class 1 vs. CC494K Bronze

ASTM A387 grade 21L class 1 belongs to the iron alloys classification, while CC494K bronze 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 CC494K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
67
Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 21
7.6
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 74
39
Tensile Strength: Ultimate (UTS), MPa 500
210
Tensile Strength: Yield (Proof), MPa 230
94

Thermal Properties

Latent Heat of Fusion, J/g 260
180
Maximum Temperature: Mechanical, °C 480
160
Melting Completion (Liquidus), °C 1470
970
Melting Onset (Solidus), °C 1430
890
Specific Heat Capacity, J/kg-K 470
360
Thermal Conductivity, W/m-K 41
63
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
16
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
16

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
31
Density, g/cm3 7.9
9.1
Embodied Carbon, kg CO2/kg material 1.8
3.1
Embodied Energy, MJ/kg 23
50
Embodied Water, L/kg 62
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
13
Resilience: Unit (Modulus of Resilience), kJ/m3 140
43
Stiffness to Weight: Axial, points 13
6.4
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 18
6.5
Strength to Weight: Bending, points 18
8.8
Thermal Diffusivity, mm2/s 11
19
Thermal Shock Resistance, points 14
7.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
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
78 to 87
Iron (Fe), % 94.4 to 96.1
0 to 0.25
Lead (Pb), % 0
8.0 to 10
Manganese (Mn), % 0.3 to 0.6
0 to 0.2
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
0 to 2.0
Phosphorus (P), % 0 to 0.025
0 to 0.1
Silicon (Si), % 0 to 0.5
0 to 0.010
Sulfur (S), % 0 to 0.025
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 0
0 to 2.0