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EN 1.4659 Stainless Steel vs. AWS BAu-4

EN 1.4659 stainless steel belongs to the iron alloys classification, while AWS BAu-4 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN 1.4659 stainless steel and the bottom bar is AWS BAu-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Poisson's Ratio 0.28
0.4
Shear Modulus, GPa 81
41
Tensile Strength: Ultimate (UTS), MPa 900
200

Thermal Properties

Latent Heat of Fusion, J/g 300
100
Melting Completion (Liquidus), °C 1480
950
Melting Onset (Solidus), °C 1430
950
Specific Heat Capacity, J/kg-K 460
190
Thermal Expansion, µm/m-K 16
14

Otherwise Unclassified Properties

Density, g/cm3 8.2
17

Common Calculations

Stiffness to Weight: Axial, points 14
3.6
Stiffness to Weight: Bending, points 24
9.3
Strength to Weight: Axial, points 31
3.2
Strength to Weight: Bending, points 25
4.4
Thermal Shock Resistance, points 19
9.2

Alloy Composition

Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 23 to 25
0
Copper (Cu), % 1.0 to 2.0
0
Gold (Au), % 0
81.5 to 82.5
Iron (Fe), % 35.7 to 45.7
0
Manganese (Mn), % 2.0 to 4.0
0
Molybdenum (Mo), % 5.5 to 6.5
0
Nickel (Ni), % 21 to 23
17.4 to 18.5
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.7
0
Sulfur (S), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.5
0
Residuals, % 0
0 to 0.15