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EN 1.4961 Stainless Steel vs. Nickel 685

EN 1.4961 stainless steel belongs to the iron alloys classification, while nickel 685 belongs to the nickel alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4961 stainless steel and the bottom bar is nickel 685.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
17
Fatigue Strength, MPa 190
470
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
77
Shear Strength, MPa 420
770
Tensile Strength: Ultimate (UTS), MPa 610
1250
Tensile Strength: Yield (Proof), MPa 220
850

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 890
1000
Melting Completion (Liquidus), °C 1430
1380
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
13
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 21
75
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 4.0
10
Embodied Energy, MJ/kg 57
140
Embodied Water, L/kg 140
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
190
Resilience: Unit (Modulus of Resilience), kJ/m3 120
1820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22
42
Strength to Weight: Bending, points 20
31
Thermal Diffusivity, mm2/s 4.3
3.3
Thermal Shock Resistance, points 14
37

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.6
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.040 to 0.1
0.030 to 0.1
Chromium (Cr), % 15 to 17
18 to 21
Cobalt (Co), % 0
12 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 65.6 to 72.3
0 to 2.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 5.0
Nickel (Ni), % 12 to 14
49.6 to 62.5
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.3 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
2.8 to 3.3
Zinc (Zn), % 0
0.020 to 0.12