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AISI 439 Stainless Steel vs. C90800 Bronze

AISI 439 stainless steel belongs to the iron alloys classification, while C90800 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AISI 439 stainless steel and the bottom bar is C90800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
90
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 23
13
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 490
330
Tensile Strength: Yield (Proof), MPa 250
170

Thermal Properties

Latent Heat of Fusion, J/g 280
190
Maximum Temperature: Mechanical, °C 890
170
Melting Completion (Liquidus), °C 1510
990
Melting Onset (Solidus), °C 1430
870
Specific Heat Capacity, J/kg-K 480
370
Thermal Conductivity, W/m-K 25
68
Thermal Expansion, µm/m-K 11
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
11
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
36
Density, g/cm3 7.7
8.7
Embodied Carbon, kg CO2/kg material 2.3
3.8
Embodied Energy, MJ/kg 34
62
Embodied Water, L/kg 120
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
35
Resilience: Unit (Modulus of Resilience), kJ/m3 160
140
Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 18
11
Strength to Weight: Bending, points 18
12
Thermal Diffusivity, mm2/s 6.7
21
Thermal Shock Resistance, points 16
12

Alloy Composition

Aluminum (Al), % 0 to 0.15
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
85.3 to 89
Iron (Fe), % 77.1 to 82.8
0 to 0.15
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.5
0 to 0.5
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.3
Silicon (Si), % 0 to 1.0
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.050
Tin (Sn), % 0
11 to 13
Titanium (Ti), % 0.2 to 1.1
0
Zinc (Zn), % 0
0 to 0.25