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S21603 Stainless Steel vs. C66900 Brass

S21603 stainless steel belongs to the iron alloys classification, while C66900 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S21603 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, % 45
1.1 to 26
Poisson's Ratio 0.28
0.32
Rockwell B Hardness 88
65 to 100
Shear Modulus, GPa 79
45
Shear Strength, MPa 490
290 to 440
Tensile Strength: Ultimate (UTS), MPa 690
460 to 770
Tensile Strength: Yield (Proof), MPa 390
330 to 760

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Maximum Temperature: Mechanical, °C 990
150
Melting Completion (Liquidus), °C 1420
860
Melting Onset (Solidus), °C 1380
850
Specific Heat Capacity, J/kg-K 480
400
Thermal Expansion, µm/m-K 17
20

Otherwise Unclassified Properties

Base Metal Price, % relative 17
23
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 3.6
2.8
Embodied Energy, MJ/kg 50
46
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
4.6 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 380
460 to 2450
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 25
15 to 26
Strength to Weight: Bending, points 22
16 to 23
Thermal Shock Resistance, points 15
14 to 23

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 22
0
Copper (Cu), % 0
62.5 to 64.5
Iron (Fe), % 57.6 to 67.8
0 to 0.25
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 7.5 to 9.0
11.5 to 12.5
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
22.5 to 26
Residuals, % 0
0 to 0.2