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EN 1.4640 Stainless Steel vs. C69430 Brass

EN 1.4640 stainless steel belongs to the iron alloys classification, while C69430 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4640 stainless steel and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 51
17
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
42
Shear Strength, MPa 440 to 460
350
Tensile Strength: Ultimate (UTS), MPa 620 to 650
570
Tensile Strength: Yield (Proof), MPa 240 to 260
280

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 930
170
Melting Completion (Liquidus), °C 1420
920
Melting Onset (Solidus), °C 1380
820
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 15
26
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
27
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 40
44
Embodied Water, L/kg 150
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250 to 260
80
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 170
340
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 22 to 23
19
Strength to Weight: Bending, points 21
18
Thermal Diffusivity, mm2/s 4.0
7.7
Thermal Shock Resistance, points 14 to 15
20

Alloy Composition

Arsenic (As), % 0
0.030 to 0.060
Carbon (C), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 19
0
Copper (Cu), % 1.3 to 2.0
80 to 83
Iron (Fe), % 67.4 to 73.6
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 1.5 to 4.0
0
Nickel (Ni), % 5.5 to 6.9
0
Nitrogen (N), % 0.030 to 0.11
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.5
3.5 to 4.5
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
11.4 to 16.5
Residuals, % 0
0 to 0.5