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S31254 Stainless Steel vs. AWS BAg-9

S31254 stainless steel belongs to the iron alloys classification, while AWS BAg-9 belongs to the otherwise unclassified metals. There are 16 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 S31254 stainless steel and the bottom bar is AWS BAg-9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
82
Poisson's Ratio 0.28
0.35
Shear Modulus, GPa 80
31
Tensile Strength: Ultimate (UTS), MPa 720
140

Thermal Properties

Latent Heat of Fusion, J/g 300
130
Melting Completion (Liquidus), °C 1460
720
Melting Onset (Solidus), °C 1420
670
Specific Heat Capacity, J/kg-K 460
290
Thermal Expansion, µm/m-K 17
20

Otherwise Unclassified Properties

Density, g/cm3 8.0
9.6
Embodied Energy, MJ/kg 74
980

Common Calculations

Stiffness to Weight: Axial, points 14
4.8
Stiffness to Weight: Bending, points 24
15
Strength to Weight: Axial, points 25
4.1
Strength to Weight: Bending, points 22
6.3
Thermal Shock Resistance, points 15
6.0

Alloy Composition

Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 19.5 to 20.5
0
Copper (Cu), % 0.5 to 1.0
19 to 21
Iron (Fe), % 51.4 to 56.3
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 6.0 to 6.5
0
Nickel (Ni), % 17.5 to 18.5
0
Nitrogen (N), % 0.18 to 0.22
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.8
0
Silver (Ag), % 0
64 to 66
Sulfur (S), % 0 to 0.010
0
Zinc (Zn), % 0
13 to 17
Residuals, % 0
0 to 0.15