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AWS BAg-37 vs. SAE-AISI M3 Class 2 Steel

AWS BAg-37 belongs to the otherwise unclassified metals classification, while SAE-AISI M3 class 2 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-37 and the bottom bar is SAE-AISI M3 class 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 94
200
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 36
77
Tensile Strength: Ultimate (UTS), MPa 180
770 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 150
260
Melting Completion (Liquidus), °C 780
1620
Melting Onset (Solidus), °C 690
1570
Specific Heat Capacity, J/kg-K 350
440
Thermal Expansion, µm/m-K 21
12

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.3
Embodied Carbon, kg CO2/kg material 26
12
Embodied Energy, MJ/kg 410
180

Common Calculations

Stiffness to Weight: Axial, points 6.1
13
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 5.9
26 to 74
Strength to Weight: Bending, points 8.3
22 to 45
Thermal Shock Resistance, points 6.6
24 to 69

Alloy Composition

Carbon (C), % 0
1.2 to 1.3
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 39 to 41
0 to 0.25
Iron (Fe), % 0
75.8 to 82.3
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
4.8 to 6.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.45
Silver (Ag), % 24 to 26
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.5 to 2.5
0
Tungsten (W), % 0
5.0 to 6.8
Vanadium (V), % 0
2.8 to 3.8
Zinc (Zn), % 31 to 35
0
Residuals, % 0 to 0.15
0