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S41045 Stainless Steel vs. C99750 Brass

S41045 stainless steel belongs to the iron alloys classification, while C99750 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S41045 stainless steel and the bottom bar is C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
110 to 120
Elastic (Young's, Tensile) Modulus, GPa 190
130
Elongation at Break, % 25
20 to 30
Poisson's Ratio 0.28
0.32
Rockwell B Hardness 70
77 to 82
Shear Modulus, GPa 76
48
Tensile Strength: Ultimate (UTS), MPa 430
450 to 520
Tensile Strength: Yield (Proof), MPa 230
220 to 280

Thermal Properties

Latent Heat of Fusion, J/g 270
200
Maximum Temperature: Mechanical, °C 740
160
Melting Completion (Liquidus), °C 1450
840
Melting Onset (Solidus), °C 1400
820
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 10
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
23
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.2
3.1
Embodied Energy, MJ/kg 31
51
Embodied Water, L/kg 100
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
190 to 300
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 16
15 to 18
Strength to Weight: Bending, points 16
16 to 18
Thermal Shock Resistance, points 16
13 to 15

Alloy Composition

Aluminum (Al), % 0
0.25 to 3.0
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 12 to 13
0
Copper (Cu), % 0
55 to 61
Iron (Fe), % 83.8 to 88
0 to 1.0
Lead (Pb), % 0
0.5 to 2.5
Manganese (Mn), % 0 to 1.0
17 to 23
Nickel (Ni), % 0 to 0.5
0 to 5.0
Niobium (Nb), % 0 to 0.6
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
17 to 23
Residuals, % 0
0 to 0.3