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AISI 321H Stainless Steel vs. CC751S Brass

AISI 321H stainless steel belongs to the iron alloys classification, while CC751S brass belongs to the copper alloys. There are 29 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 AISI 321H stainless steel and the bottom bar is CC751S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
130
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
5.6
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 580
450
Tensile Strength: Yield (Proof), MPa 230
320

Thermal Properties

Latent Heat of Fusion, J/g 290
190
Maximum Temperature: Mechanical, °C 940
130
Melting Completion (Liquidus), °C 1430
850
Melting Onset (Solidus), °C 1380
810
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 17
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
28

Otherwise Unclassified Properties

Base Metal Price, % relative 16
24
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.2
2.8
Embodied Energy, MJ/kg 46
46
Embodied Water, L/kg 140
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
23
Resilience: Unit (Modulus of Resilience), kJ/m3 140
480
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 21
15
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 4.0
35
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Antimony (Sb), % 0
0 to 0.5
Carbon (C), % 0.040 to 0.1
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
62.7 to 66
Iron (Fe), % 65.4 to 74
0.25 to 0.5
Lead (Pb), % 0
0.8 to 2.2
Manganese (Mn), % 0 to 2.0
0 to 0.15
Nickel (Ni), % 9.0 to 12
0 to 0.8
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0.65 to 1.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.8
Titanium (Ti), % 0 to 0.7
0
Zinc (Zn), % 0
27.9 to 35.6