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EN 1.7221 Steel vs. AWS BAg-18

EN 1.7221 steel belongs to the iron alloys classification, while AWS BAg-18 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is EN 1.7221 steel and the bottom bar is AWS BAg-18.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
82
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 73
30
Tensile Strength: Ultimate (UTS), MPa 650 to 780
170

Thermal Properties

Latent Heat of Fusion, J/g 250
130
Melting Completion (Liquidus), °C 1460
720
Melting Onset (Solidus), °C 1420
600
Specific Heat Capacity, J/kg-K 470
280
Thermal Expansion, µm/m-K 13
19

Otherwise Unclassified Properties

Density, g/cm3 7.8
9.7
Embodied Carbon, kg CO2/kg material 1.5
59
Embodied Energy, MJ/kg 20
930

Common Calculations

Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 24
15
Strength to Weight: Axial, points 23 to 27
4.9
Strength to Weight: Bending, points 21 to 24
7.0
Thermal Shock Resistance, points 19 to 23
7.7

Alloy Composition

Carbon (C), % 0.22 to 0.29
0
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
28.4 to 31.5
Iron (Fe), % 96.8 to 98.3
0
Manganese (Mn), % 0.5 to 0.8
0
Molybdenum (Mo), % 0.15 to 0.3
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.6
0
Silver (Ag), % 0
59 to 61
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
9.5 to 10.5
Residuals, % 0
0 to 0.15