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Annealed SAE-AISI M34 vs. Annealed Type 4 Magnetic Alloy

Annealed SAE-AISI M34 belongs to the iron alloys classification, while annealed Type 4 magnetic alloy belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is annealed SAE-AISI M34 and the bottom bar is annealed Type 4 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 800
620

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1540
1420
Melting Onset (Solidus), °C 1500
1370
Specific Heat Capacity, J/kg-K 450
440
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 32
60
Density, g/cm3 8.2
8.8
Embodied Carbon, kg CO2/kg material 9.5
10
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 150
210

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 27
19
Strength to Weight: Bending, points 23
18
Thermal Shock Resistance, points 25
21

Alloy Composition

Carbon (C), % 0.85 to 0.92
0 to 0.050
Chromium (Cr), % 3.5 to 4.0
0 to 0.3
Cobalt (Co), % 7.8 to 8.8
0 to 0.5
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 71.3 to 76.5
9.5 to 17.5
Manganese (Mn), % 0.15 to 0.4
0 to 0.8
Molybdenum (Mo), % 7.8 to 9.2
3.5 to 6.0
Nickel (Ni), % 0 to 0.3
79 to 82
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0.2 to 0.45
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.9 to 2.3
0