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AISI 439 Stainless Steel vs. AWS BAg-5

AISI 439 stainless steel belongs to the iron alloys classification, while AWS BAg-5 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.

For each property being compared, the top bar is AISI 439 stainless steel and the bottom bar is AWS BAg-5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
88
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
33
Tensile Strength: Ultimate (UTS), MPa 490
150

Thermal Properties

Latent Heat of Fusion, J/g 280
140
Melting Completion (Liquidus), °C 1510
740
Melting Onset (Solidus), °C 1430
660
Specific Heat Capacity, J/kg-K 480
320
Thermal Expansion, µm/m-K 11
21

Otherwise Unclassified Properties

Density, g/cm3 7.7
9.0
Embodied Carbon, kg CO2/kg material 2.3
44
Embodied Energy, MJ/kg 34
700

Common Calculations

Stiffness to Weight: Axial, points 14
5.4
Stiffness to Weight: Bending, points 25
16
Strength to Weight: Axial, points 18
4.6
Strength to Weight: Bending, points 18
6.9
Thermal Shock Resistance, points 16
5.9

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
29 to 31
Iron (Fe), % 77.1 to 82.8
0
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.5
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
44 to 46
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.2 to 1.1
0
Zinc (Zn), % 0
23 to 27
Residuals, % 0
0 to 0.15