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Nickel 685 vs. EN 1.4034 Stainless Steel

Nickel 685 belongs to the nickel alloys classification, while EN 1.4034 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is nickel 685 and the bottom bar is EN 1.4034 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
11 to 14
Fatigue Strength, MPa 470
230 to 400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 770
420 to 540
Tensile Strength: Ultimate (UTS), MPa 1250
690 to 900
Tensile Strength: Yield (Proof), MPa 850
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Mechanical, °C 1000
770
Melting Completion (Liquidus), °C 1380
1440
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 13
30
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 75
7.0
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 10
2.0
Embodied Energy, MJ/kg 140
27
Embodied Water, L/kg 340
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
81 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 1820
400 to 1370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 42
25 to 32
Strength to Weight: Bending, points 31
22 to 27
Thermal Diffusivity, mm2/s 3.3
8.1
Thermal Shock Resistance, points 37
24 to 32

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 0.5
Chromium (Cr), % 18 to 21
12.5 to 14.5
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 0 to 2.0
83 to 87.1
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 3.5 to 5.0
0
Nickel (Ni), % 49.6 to 62.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 2.8 to 3.3
0
Zinc (Zn), % 0.020 to 0.12
0