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ASTM Grade HN Steel vs. AWS BAg-23

ASTM grade HN 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 (12, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN 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 500
170

Thermal Properties

Latent Heat of Fusion, J/g 310
130
Melting Completion (Liquidus), °C 1400
970
Melting Onset (Solidus), °C 1350
960
Specific Heat Capacity, J/kg-K 480
270
Thermal Expansion, µm/m-K 16
20

Otherwise Unclassified Properties

Density, g/cm3 7.9
10

Common Calculations

Stiffness to Weight: Axial, points 14
5.0
Stiffness to Weight: Bending, points 25
15
Strength to Weight: Axial, points 17
4.7
Strength to Weight: Bending, points 18
6.8
Thermal Shock Resistance, points 11
6.8

Alloy Composition

Carbon (C), % 0.2 to 0.5
0
Chromium (Cr), % 19 to 23
0
Iron (Fe), % 44.9 to 57.8
0
Manganese (Mn), % 0 to 2.0
13.9 to 16
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 27
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Silver (Ag), % 0
84 to 86
Sulfur (S), % 0 to 0.040
0
Residuals, % 0
0 to 0.15