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AISI 439 Stainless Steel vs. AWS BVAg-8

AISI 439 stainless steel belongs to the iron alloys classification, while AWS BVAg-8 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 BVAg-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
84
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 77
31
Tensile Strength: Ultimate (UTS), MPa 490
170

Thermal Properties

Latent Heat of Fusion, J/g 280
140
Melting Completion (Liquidus), °C 1510
780
Melting Onset (Solidus), °C 1430
780
Specific Heat Capacity, J/kg-K 480
280
Thermal Expansion, µm/m-K 11
19

Otherwise Unclassified Properties

Density, g/cm3 7.7
10

Common Calculations

Stiffness to Weight: Axial, points 14
4.6
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 18
4.7
Strength to Weight: Bending, points 18
6.8
Thermal Shock Resistance, points 16
7.6

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0 to 0.030
0 to 0.0050
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
27 to 29
Iron (Fe), % 77.1 to 82.8
0
Lead (Pb), % 0
0 to 0.0020
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 to 0.0020
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
71 to 73
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.2 to 1.1
0
Zinc (Zn), % 0
0 to 0.0010