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SAE-AISI M34 Steel vs. AWS BVAg-31

SAE-AISI M34 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 M34 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 800 to 2170
180

Thermal Properties

Latent Heat of Fusion, J/g 270
150
Melting Completion (Liquidus), °C 1540
850
Melting Onset (Solidus), °C 1500
820
Specific Heat Capacity, J/kg-K 450
280
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Density, g/cm3 8.2
10

Common Calculations

Stiffness to Weight: Axial, points 14
4.9
Stiffness to Weight: Bending, points 24
15
Strength to Weight: Axial, points 27 to 74
4.9
Strength to Weight: Bending, points 23 to 46
7.0
Thermal Shock Resistance, points 25 to 67
7.8

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0.85 to 0.92
0 to 0.0050
Chromium (Cr), % 3.5 to 4.0
0
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
31 to 33
Iron (Fe), % 71.3 to 76.5
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 7.8 to 9.2
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), % 1.4 to 2.1
0
Vanadium (V), % 1.9 to 2.3
0
Zinc (Zn), % 0
0 to 0.0010