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AWS BAg-18 vs. S44725 Stainless Steel

AWS BAg-18 belongs to the otherwise unclassified metals classification, while S44725 stainless steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-18 and the bottom bar is S44725 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
200
Poisson's Ratio 0.36
0.27
Shear Modulus, GPa 30
81
Tensile Strength: Ultimate (UTS), MPa 170
500

Thermal Properties

Latent Heat of Fusion, J/g 130
290
Melting Completion (Liquidus), °C 720
1450
Melting Onset (Solidus), °C 600
1410
Specific Heat Capacity, J/kg-K 280
480
Thermal Expansion, µm/m-K 19
11

Otherwise Unclassified Properties

Density, g/cm3 9.7
7.7
Embodied Carbon, kg CO2/kg material 59
3.1
Embodied Energy, MJ/kg 930
44

Common Calculations

Stiffness to Weight: Axial, points 4.7
15
Stiffness to Weight: Bending, points 15
25
Strength to Weight: Axial, points 4.9
18
Strength to Weight: Bending, points 7.0
18
Thermal Shock Resistance, points 7.7
16

Alloy Composition

Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
25 to 28.5
Copper (Cu), % 28.4 to 31.5
0
Iron (Fe), % 0
67.6 to 73.5
Manganese (Mn), % 0
0 to 0.4
Molybdenum (Mo), % 0
1.5 to 2.5
Nickel (Ni), % 0
0 to 0.3
Niobium (Nb), % 0
0 to 0.26
Nitrogen (N), % 0
0 to 0.018
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.040
Silver (Ag), % 59 to 61
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 9.5 to 10.5
0
Titanium (Ti), % 0
0 to 0.26
Residuals, % 0 to 0.15
0