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Nickel 685 vs. SAE-AISI 1345 Steel

Nickel 685 belongs to the nickel alloys classification, while SAE-AISI 1345 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is nickel 685 and the bottom bar is SAE-AISI 1345 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
170 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
11 to 23
Fatigue Strength, MPa 470
230 to 390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 770
370 to 440
Tensile Strength: Ultimate (UTS), MPa 1250
590 to 730
Tensile Strength: Yield (Proof), MPa 850
330 to 620

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1380
1450
Melting Onset (Solidus), °C 1330
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 13
51
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
1.9
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 10
1.4
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 340
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
78 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1820
290 to 1040
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 42
21 to 26
Strength to Weight: Bending, points 31
20 to 23
Thermal Diffusivity, mm2/s 3.3
14
Thermal Shock Resistance, points 37
19 to 23

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
0.43 to 0.48
Chromium (Cr), % 18 to 21
0
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 2.0
97.2 to 97.8
Manganese (Mn), % 0 to 1.0
1.6 to 1.9
Molybdenum (Mo), % 3.5 to 5.0
0
Nickel (Ni), % 49.6 to 62.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.75
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Titanium (Ti), % 2.8 to 3.3
0
Zinc (Zn), % 0.020 to 0.12
0