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AISI 439 Stainless Steel vs. AWS BAg-23

AISI 439 stainless steel belongs to the iron alloys classification, while AWS BAg-23 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (22, 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-23.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
90
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 77
33
Tensile Strength: Ultimate (UTS), MPa 490
170

Thermal Properties

Latent Heat of Fusion, J/g 280
130
Melting Completion (Liquidus), °C 1510
970
Melting Onset (Solidus), °C 1430
960
Specific Heat Capacity, J/kg-K 480
270
Thermal Expansion, µm/m-K 11
20

Otherwise Unclassified Properties

Density, g/cm3 7.7
10

Common Calculations

Stiffness to Weight: Axial, points 14
5.0
Stiffness to Weight: Bending, points 25
15
Strength to Weight: Axial, points 18
4.7
Strength to Weight: Bending, points 18
6.8
Thermal Shock Resistance, points 16
6.8

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0
Iron (Fe), % 77.1 to 82.8
0
Manganese (Mn), % 0 to 1.0
13.9 to 16
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
84 to 86
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.2 to 1.1
0
Residuals, % 0
0 to 0.15