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AISI 347 Stainless Steel vs. C44400 Brass

AISI 347 stainless steel belongs to the iron alloys classification, while C44400 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 AISI 347 stainless steel and the bottom bar is C44400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
41
Tensile Strength: Ultimate (UTS), MPa 610 to 690
350
Tensile Strength: Yield (Proof), MPa 240 to 350
120

Thermal Properties

Latent Heat of Fusion, J/g 290
180
Maximum Temperature: Mechanical, °C 870
140
Melting Completion (Liquidus), °C 1430
940
Melting Onset (Solidus), °C 1400
900
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 16
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
27

Otherwise Unclassified Properties

Base Metal Price, % relative 19
26
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 3.6
2.8
Embodied Energy, MJ/kg 52
46
Embodied Water, L/kg 150
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 310
65
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 22 to 25
12
Strength to Weight: Bending, points 20 to 22
13
Thermal Diffusivity, mm2/s 4.3
35
Thermal Shock Resistance, points 13 to 15
12

Alloy Composition

Antimony (Sb), % 0
0.020 to 0.1
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
70 to 73
Iron (Fe), % 64.1 to 74
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 9.0 to 13
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0.9 to 1.2
Zinc (Zn), % 0
25.2 to 29.1
Residuals, % 0
0 to 0.4