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AISI 444 Stainless Steel vs. C66900 Brass

AISI 444 stainless steel belongs to the iron alloys classification, while C66900 brass belongs to the copper alloys. There are 28 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 444 stainless steel and the bottom bar is C66900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 23
1.1 to 26
Poisson's Ratio 0.28
0.32
Rockwell B Hardness 83
65 to 100
Shear Modulus, GPa 78
45
Shear Strength, MPa 300
290 to 440
Tensile Strength: Ultimate (UTS), MPa 470
460 to 770
Tensile Strength: Yield (Proof), MPa 310
330 to 760

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Maximum Temperature: Mechanical, °C 930
150
Melting Completion (Liquidus), °C 1460
860
Melting Onset (Solidus), °C 1420
850
Specific Heat Capacity, J/kg-K 480
400
Thermal Expansion, µm/m-K 10
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.8

Otherwise Unclassified Properties

Base Metal Price, % relative 15
23
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 3.4
2.8
Embodied Energy, MJ/kg 47
46
Embodied Water, L/kg 130
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
4.6 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 240
460 to 2450
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 17
15 to 26
Strength to Weight: Bending, points 17
16 to 23
Thermal Shock Resistance, points 16
14 to 23

Alloy Composition

Carbon (C), % 0 to 0.025
0
Chromium (Cr), % 17.5 to 19.5
0
Copper (Cu), % 0
62.5 to 64.5
Iron (Fe), % 73.3 to 80.8
0 to 0.25
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.0
11.5 to 12.5
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 0 to 1.0
0
Niobium (Nb), % 0.2 to 0.8
0
Nitrogen (N), % 0 to 0.035
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.2 to 0.8
0
Zinc (Zn), % 0
22.5 to 26
Residuals, % 0
0 to 0.2