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AISI 418 Stainless Steel vs. C99700 Brass

AISI 418 stainless steel belongs to the iron alloys classification, while C99700 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 418 stainless steel and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 17
25
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
46
Tensile Strength: Ultimate (UTS), MPa 1100
380
Tensile Strength: Yield (Proof), MPa 850
170

Thermal Properties

Latent Heat of Fusion, J/g 270
200
Maximum Temperature: Mechanical, °C 770
160
Melting Completion (Liquidus), °C 1500
900
Melting Onset (Solidus), °C 1460
880
Specific Heat Capacity, J/kg-K 470
410
Thermal Expansion, µm/m-K 10
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
25
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 2.9
3.3
Embodied Energy, MJ/kg 41
53
Embodied Water, L/kg 110
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
78
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
120
Stiffness to Weight: Axial, points 14
8.3
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 38
13
Strength to Weight: Bending, points 29
14
Thermal Shock Resistance, points 40
11

Alloy Composition

Aluminum (Al), % 0
0.5 to 3.0
Carbon (C), % 0.15 to 0.2
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
54 to 65.5
Iron (Fe), % 78.5 to 83.6
0 to 1.0
Lead (Pb), % 0
0 to 2.0
Manganese (Mn), % 0 to 0.5
11 to 15
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.8 to 2.2
4.0 to 6.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 1.0
Tungsten (W), % 2.5 to 3.5
0
Zinc (Zn), % 0
19 to 25
Residuals, % 0
0 to 0.3