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AWS BAg-4 vs. SAE-AISI 4130 Steel

AWS BAg-4 belongs to the otherwise unclassified metals classification, while SAE-AISI 4130 steel belongs to the iron alloys. 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 AWS BAg-4 and the bottom bar is SAE-AISI 4130 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 91
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 34
73
Tensile Strength: Ultimate (UTS), MPa 150
530 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 140
250
Melting Completion (Liquidus), °C 780
1460
Melting Onset (Solidus), °C 670
1420
Specific Heat Capacity, J/kg-K 330
470
Thermal Expansion, µm/m-K 21
13

Otherwise Unclassified Properties

Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 40
1.5
Embodied Energy, MJ/kg 630
20

Common Calculations

Stiffness to Weight: Axial, points 5.7
13
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 4.7
19 to 37
Strength to Weight: Bending, points 7.1
19 to 29
Thermal Shock Resistance, points 5.7
16 to 31

Alloy Composition

Carbon (C), % 0
0.28 to 0.33
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 29 to 31
0
Iron (Fe), % 0
97.3 to 98.2
Manganese (Mn), % 0
0.4 to 0.6
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 1.5 to 2.5
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Silver (Ag), % 39 to 41
0
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 26 to 30
0
Residuals, % 0 to 0.15
0