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AISI 418 Stainless Steel vs. C69700 Brass

AISI 418 stainless steel belongs to the iron alloys classification, while C69700 brass belongs to the copper alloys. There are 27 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 418 stainless steel and the bottom bar is C69700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17
25
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
41
Shear Strength, MPa 680
300
Tensile Strength: Ultimate (UTS), MPa 1100
470
Tensile Strength: Yield (Proof), MPa 850
230

Thermal Properties

Latent Heat of Fusion, J/g 270
240
Maximum Temperature: Mechanical, °C 770
160
Melting Completion (Liquidus), °C 1500
930
Melting Onset (Solidus), °C 1460
880
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 25
43
Thermal Expansion, µm/m-K 10
19

Otherwise Unclassified Properties

Base Metal Price, % relative 15
26
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 2.9
2.7
Embodied Energy, MJ/kg 41
44
Embodied Water, L/kg 110
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
99
Resilience: Unit (Modulus of Resilience), kJ/m3 1830
250
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 38
16
Strength to Weight: Bending, points 29
16
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 40
16

Alloy Composition

Carbon (C), % 0.15 to 0.2
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
75 to 80
Iron (Fe), % 78.5 to 83.6
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Manganese (Mn), % 0 to 0.5
0 to 0.4
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.8 to 2.2
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
2.5 to 3.5
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 2.5 to 3.5
0
Zinc (Zn), % 0
13.9 to 22
Residuals, % 0
0 to 0.5