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AISI 321 Stainless Steel vs. C85400 Brass

AISI 321 stainless steel belongs to the iron alloys classification, while C85400 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 AISI 321 stainless steel and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
55
Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 34 to 50
23
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 590 to 690
220
Tensile Strength: Yield (Proof), MPa 220 to 350
85

Thermal Properties

Latent Heat of Fusion, J/g 290
180
Maximum Temperature: Mechanical, °C 870
130
Melting Completion (Liquidus), °C 1430
940
Melting Onset (Solidus), °C 1400
940
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 16
89
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
20
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
22

Otherwise Unclassified Properties

Base Metal Price, % relative 16
25
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.2
2.8
Embodied Energy, MJ/kg 45
46
Embodied Water, L/kg 140
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 230
40
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 310
35
Stiffness to Weight: Axial, points 14
7.0
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 21 to 25
7.5
Strength to Weight: Bending, points 20 to 22
9.9
Thermal Diffusivity, mm2/s 4.1
28
Thermal Shock Resistance, points 13 to 15
7.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
65 to 70
Iron (Fe), % 65.3 to 74
0 to 0.7
Lead (Pb), % 0
1.5 to 3.8
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 12
0 to 1.0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.050
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.5 to 1.5
Titanium (Ti), % 0 to 0.7
0
Zinc (Zn), % 0
24 to 32
Residuals, % 0
0 to 1.1