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Nickel 685 vs. Grade TDSiCrV Steel

Nickel 685 belongs to the nickel alloys classification, while grade TDSiCrV steel belongs to the iron alloys. There are 24 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 nickel 685 and the bottom bar is grade TDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
630
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 20
48
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 1250
2100

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 1000
420
Melting Completion (Liquidus), °C 1380
1440
Melting Onset (Solidus), °C 1330
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 13
47
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
2.3
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 10
1.9
Embodied Energy, MJ/kg 140
26
Embodied Water, L/kg 340
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 42
75
Strength to Weight: Bending, points 31
47
Thermal Diffusivity, mm2/s 3.3
13
Thermal Shock Resistance, points 37
63

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
0.5 to 0.7
Chromium (Cr), % 18 to 21
0.5 to 1.0
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.5
0 to 0.1
Iron (Fe), % 0 to 2.0
96.1 to 97.8
Manganese (Mn), % 0 to 1.0
0.4 to 0.9
Molybdenum (Mo), % 3.5 to 5.0
0
Nickel (Ni), % 49.6 to 62.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 0.75
1.2 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 2.8 to 3.3
0
Vanadium (V), % 0
0.1 to 0.25
Zinc (Zn), % 0.020 to 0.12
0