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AISI 440A Stainless Steel vs. C69430 Brass

AISI 440A stainless steel belongs to the iron alloys classification, while C69430 brass belongs to the copper alloys. There are 28 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 AISI 440A stainless steel and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 5.0 to 20
17
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
42
Shear Strength, MPa 450 to 1040
350
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
570
Tensile Strength: Yield (Proof), MPa 420 to 1650
280

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 760
170
Melting Completion (Liquidus), °C 1480
920
Melting Onset (Solidus), °C 1370
820
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 23
26
Thermal Expansion, µm/m-K 10
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
27
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 2.2
2.7
Embodied Energy, MJ/kg 31
44
Embodied Water, L/kg 120
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 120
80
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 26 to 65
19
Strength to Weight: Bending, points 23 to 43
18
Thermal Diffusivity, mm2/s 6.2
7.7
Thermal Shock Resistance, points 26 to 65
20

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Carbon (C), % 0.6 to 0.75
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
80 to 83
Iron (Fe), % 78.4 to 83.4
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
3.5 to 4.5
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
11.4 to 16.5
Residuals, % 0
0 to 0.5