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AWS BAg-21 vs. Grade 250 Maraging Steel

AWS BAg-21 belongs to the otherwise unclassified metals classification, while grade 250 maraging steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-21 and the bottom bar is grade 250 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 85
190
Poisson's Ratio 0.36
0.3
Shear Modulus, GPa 31
75
Tensile Strength: Ultimate (UTS), MPa 150
970 to 1800

Thermal Properties

Latent Heat of Fusion, J/g 140
270
Melting Completion (Liquidus), °C 800
1480
Melting Onset (Solidus), °C 690
1430
Specific Heat Capacity, J/kg-K 280
450
Thermal Expansion, µm/m-K 19
12

Otherwise Unclassified Properties

Density, g/cm3 9.8
8.2
Embodied Energy, MJ/kg 970
65

Common Calculations

Stiffness to Weight: Axial, points 4.8
13
Stiffness to Weight: Bending, points 15
23
Strength to Weight: Axial, points 4.2
33 to 61
Strength to Weight: Bending, points 6.4
26 to 40
Thermal Shock Resistance, points 6.6
29 to 54

Alloy Composition


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Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0
0 to 0.030
Cobalt (Co), % 0
7.0 to 8.5
Copper (Cu), % 27.5 to 29.5
0
Iron (Fe), % 0
66.3 to 71.1
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 2.0 to 3.0
17 to 19
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 62 to 64
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 5.0 to 7.0
0
Titanium (Ti), % 0
0.3 to 0.5
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.15
0