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SAE-AISI H42 Steel vs. AWS BAg-2a

SAE-AISI H42 steel belongs to the iron alloys classification, while AWS BAg-2a belongs to the otherwise unclassified metals. 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 SAE-AISI H42 steel and the bottom bar is AWS BAg-2a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
83
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
31
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
170

Thermal Properties

Latent Heat of Fusion, J/g 260
130
Melting Completion (Liquidus), °C 1620
710
Melting Onset (Solidus), °C 1570
610
Specific Heat Capacity, J/kg-K 440
310
Thermal Expansion, µm/m-K 12
23

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.8
Embodied Carbon, kg CO2/kg material 8.8
30
Embodied Energy, MJ/kg 130
470

Common Calculations

Stiffness to Weight: Axial, points 13
5.2
Stiffness to Weight: Bending, points 23
17
Strength to Weight: Axial, points 23 to 65
5.4
Strength to Weight: Bending, points 21 to 42
7.8
Thermal Shock Resistance, points 20 to 57
6.5

Alloy Composition

Cadmium (Cd), % 0
19 to 21
Carbon (C), % 0.55 to 0.7
0
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
26 to 28
Iron (Fe), % 79.3 to 83.8
0
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0
Silver (Ag), % 0
29 to 31
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0
Zinc (Zn), % 0
21 to 25
Residuals, % 0
0 to 0.15