MakeItFrom.com
Menu (ESC)

AISI 431 Stainless Steel vs. C87900 Brass

AISI 431 stainless steel belongs to the iron alloys classification, while C87900 brass belongs to the copper alloys. There are 28 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 431 stainless steel and the bottom bar is C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 15 to 17
25
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
41
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
480
Tensile Strength: Yield (Proof), MPa 710 to 1040
240

Thermal Properties

Latent Heat of Fusion, J/g 280
190
Maximum Temperature: Mechanical, °C 850
130
Melting Completion (Liquidus), °C 1510
930
Melting Onset (Solidus), °C 1450
900
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 26
120
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
15
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
24
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.2
2.7
Embodied Energy, MJ/kg 31
46
Embodied Water, L/kg 120
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
100
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
270
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 32 to 50
17
Strength to Weight: Bending, points 27 to 36
17
Thermal Diffusivity, mm2/s 7.0
37
Thermal Shock Resistance, points 28 to 43
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Carbon (C), % 0 to 0.2
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
63 to 69.2
Iron (Fe), % 78.2 to 83.8
0 to 0.4
Lead (Pb), % 0
0 to 0.25
Manganese (Mn), % 0 to 1.0
0 to 0.15
Nickel (Ni), % 1.3 to 2.5
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0.8 to 1.2
Sulfur (S), % 0 to 0.030
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0
30 to 36