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Nickel 685 vs. EN 1.7149 Steel

Nickel 685 belongs to the nickel alloys classification, while EN 1.7149 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is nickel 685 and the bottom bar is EN 1.7149 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 1250
500 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1000
420
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 13
46
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
2.3
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 10
1.5
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 340
52

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 42
18 to 52
Strength to Weight: Bending, points 31
18 to 36
Thermal Diffusivity, mm2/s 3.3
12
Thermal Shock Resistance, points 37
15 to 42

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
0.17 to 0.22
Chromium (Cr), % 18 to 21
1.0 to 1.3
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.5
0 to 0.25
Iron (Fe), % 0 to 2.0
96.5 to 97.7
Manganese (Mn), % 0 to 1.0
1.1 to 1.4
Molybdenum (Mo), % 3.5 to 5.0
0
Nickel (Ni), % 49.6 to 62.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.3
Sulfur (S), % 0 to 0.030
0.020 to 0.040
Titanium (Ti), % 2.8 to 3.3
0
Zinc (Zn), % 0.020 to 0.12
0