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SAE-AISI M34 Steel vs. SAE-AISI 1146 Steel

Both SAE-AISI M34 steel and SAE-AISI 1146 steel are iron alloys. They have 75% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M34 steel and the bottom bar is SAE-AISI 1146 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 800 to 2170
670 to 730

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1540
1460
Melting Onset (Solidus), °C 1500
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 24
51
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 32
1.8
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 9.5
1.4
Embodied Energy, MJ/kg 140
18
Embodied Water, L/kg 150
46

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 74
24 to 26
Strength to Weight: Bending, points 23 to 46
22 to 23
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 25 to 67
20 to 22

Alloy Composition

Carbon (C), % 0.85 to 0.92
0.42 to 0.49
Chromium (Cr), % 3.5 to 4.0
0
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 71.3 to 76.5
98.3 to 98.8
Manganese (Mn), % 0.15 to 0.4
0.7 to 1.0
Molybdenum (Mo), % 7.8 to 9.2
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.9 to 2.3
0