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Nickel 685 vs. SAE-AISI T5 Steel

Nickel 685 belongs to the nickel alloys classification, while SAE-AISI T5 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is nickel 685 and the bottom bar is SAE-AISI T5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 1250
860 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1380
1810
Melting Onset (Solidus), °C 1330
1750
Specific Heat Capacity, J/kg-K 460
410
Thermal Conductivity, W/m-K 13
21
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 75
60
Density, g/cm3 8.4
9.4
Embodied Carbon, kg CO2/kg material 10
11
Embodied Energy, MJ/kg 140
170
Embodied Water, L/kg 340
140

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 42
25 to 63
Strength to Weight: Bending, points 31
21 to 39
Thermal Diffusivity, mm2/s 3.3
5.5
Thermal Shock Resistance, points 37
26 to 66

Alloy Composition

Aluminum (Al), % 1.2 to 1.6
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.030 to 0.1
0.75 to 0.85
Chromium (Cr), % 18 to 21
3.8 to 5.0
Cobalt (Co), % 12 to 15
7.0 to 9.5
Copper (Cu), % 0 to 0.5
0 to 0.25
Iron (Fe), % 0 to 2.0
60.6 to 68.3
Manganese (Mn), % 0 to 1.0
0.2 to 0.4
Molybdenum (Mo), % 3.5 to 5.0
0.5 to 1.3
Nickel (Ni), % 49.6 to 62.5
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.75
0.2 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 2.8 to 3.3
0
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
1.8 to 2.4
Zinc (Zn), % 0.020 to 0.12
0