MakeItFrom.com
Menu (ESC)

Nickel 718 vs. SAE-AISI M34 Steel

Nickel 718 belongs to the nickel alloys classification, while SAE-AISI M34 steel belongs to the iron alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 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 nickel 718 and the bottom bar is SAE-AISI M34 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 930 to 1530
800 to 2170

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1340
1540
Melting Onset (Solidus), °C 1260
1500
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 11
24
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
32
Density, g/cm3 8.3
8.2
Embodied Carbon, kg CO2/kg material 13
9.5
Embodied Energy, MJ/kg 190
140
Embodied Water, L/kg 250
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 31 to 51
27 to 74
Strength to Weight: Bending, points 25 to 35
23 to 46
Thermal Diffusivity, mm2/s 3.0
6.7
Thermal Shock Resistance, points 27 to 44
25 to 67

Alloy Composition

Aluminum (Al), % 0.2 to 0.8
0
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0 to 0.080
0.85 to 0.92
Chromium (Cr), % 17 to 21
3.5 to 4.0
Cobalt (Co), % 0 to 1.0
7.8 to 8.8
Copper (Cu), % 0 to 0.3
0 to 0.25
Iron (Fe), % 11.1 to 24.6
71.3 to 76.5
Manganese (Mn), % 0 to 0.35
0.15 to 0.4
Molybdenum (Mo), % 2.8 to 3.3
7.8 to 9.2
Nickel (Ni), % 50 to 55
0 to 0.3
Niobium (Nb), % 4.8 to 5.5
0
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.35
0.2 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.65 to 1.2
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.9 to 2.3