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C69710 Brass vs. AISI 321 Stainless Steel

C69710 brass belongs to the copper alloys classification, while AISI 321 stainless steel belongs to the iron 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 C69710 brass and the bottom bar is AISI 321 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 25
34 to 50
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
77
Shear Strength, MPa 300
420 to 460
Tensile Strength: Ultimate (UTS), MPa 470
590 to 690
Tensile Strength: Yield (Proof), MPa 230
220 to 350

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Maximum Temperature: Mechanical, °C 160
870
Melting Completion (Liquidus), °C 930
1430
Melting Onset (Solidus), °C 880
1400
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 40
16
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 26
16
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 2.7
3.2
Embodied Energy, MJ/kg 44
45
Embodied Water, L/kg 310
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
190 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 250
130 to 310
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 16
21 to 25
Strength to Weight: Bending, points 16
20 to 22
Thermal Diffusivity, mm2/s 12
4.1
Thermal Shock Resistance, points 16
13 to 15

Alloy Composition

Arsenic (As), % 0.030 to 0.060
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 75 to 80
0
Iron (Fe), % 0 to 0.2
65.3 to 74
Lead (Pb), % 0.5 to 1.5
0
Manganese (Mn), % 0 to 0.4
0 to 2.0
Nickel (Ni), % 0
9.0 to 12
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 2.5 to 3.5
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0 to 0.7
Zinc (Zn), % 13.8 to 22
0
Residuals, % 0 to 0.5
0