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SAE-AISI M2 Steel vs. AWS BVAg-31

SAE-AISI M2 steel belongs to the iron alloys classification, while AWS BVAg-31 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M2 steel and the bottom bar is AWS BVAg-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
90
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 77
33
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
180

Thermal Properties

Latent Heat of Fusion, J/g 260
150
Melting Completion (Liquidus), °C 1610
850
Melting Onset (Solidus), °C 1570
820
Specific Heat Capacity, J/kg-K 440
280
Thermal Expansion, µm/m-K 10
18

Otherwise Unclassified Properties

Density, g/cm3 8.4
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.9
Stiffness to Weight: Bending, points 23
15
Strength to Weight: Axial, points 25 to 71
4.9
Strength to Weight: Bending, points 22 to 44
7.0
Thermal Shock Resistance, points 27 to 76
7.8

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0.78 to 1.1
0 to 0.0050
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
31 to 33
Iron (Fe), % 78.5 to 83.4
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
0
Palladium (Pd), % 0
8.0 to 12
Phosphorus (P), % 0 to 0.030
0 to 0.0020
Silicon (Si), % 0.2 to 0.45
0
Silver (Ag), % 0
57 to 59
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
0 to 0.0010