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AISI 439 Stainless Steel vs. C85500 Brass

AISI 439 stainless steel belongs to the iron alloys classification, while C85500 brass belongs to the copper alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 439 stainless steel and the bottom bar is C85500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
85
Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 23
40
Poisson's Ratio 0.28
0.31
Rockwell B Hardness 78
55
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 490
410
Tensile Strength: Yield (Proof), MPa 250
160

Thermal Properties

Latent Heat of Fusion, J/g 280
170
Maximum Temperature: Mechanical, °C 890
120
Melting Completion (Liquidus), °C 1510
900
Melting Onset (Solidus), °C 1430
890
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 25
120
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
26
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
29

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
23
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.3
2.7
Embodied Energy, MJ/kg 34
46
Embodied Water, L/kg 120
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
130
Resilience: Unit (Modulus of Resilience), kJ/m3 160
120
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 18
14
Strength to Weight: Bending, points 18
15
Thermal Diffusivity, mm2/s 6.7
38
Thermal Shock Resistance, points 16
14

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
59 to 63
Iron (Fe), % 77.1 to 82.8
0 to 0.2
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 0 to 1.0
0 to 0.2
Nickel (Ni), % 0 to 0.5
0 to 0.2
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 0.2 to 1.1
0
Zinc (Zn), % 0
35.1 to 41
Residuals, % 0
0 to 0.9