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AISI 301LN Stainless Steel vs. Nickel 685

AISI 301LN stainless steel belongs to the iron alloys classification, while nickel 685 belongs to the nickel alloys. They have a modest 26% 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 AISI 301LN stainless steel and the bottom bar is nickel 685.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 320
350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23 to 51
17
Fatigue Strength, MPa 270 to 520
470
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
77
Shear Strength, MPa 450 to 670
770
Tensile Strength: Ultimate (UTS), MPa 630 to 1060
1250
Tensile Strength: Yield (Proof), MPa 270 to 770
850

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 890
1000
Melting Completion (Liquidus), °C 1430
1380
Melting Onset (Solidus), °C 1380
1330
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
75
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.7
10
Embodied Energy, MJ/kg 39
140
Embodied Water, L/kg 130
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 290
190
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1520
1820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22 to 38
42
Strength to Weight: Bending, points 21 to 30
31
Thermal Diffusivity, mm2/s 4.0
3.3
Thermal Shock Resistance, points 14 to 24
37

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.6
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.030
0.030 to 0.1
Chromium (Cr), % 16 to 18
18 to 21
Cobalt (Co), % 0
12 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 70.7 to 77.9
0 to 2.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 5.0
Nickel (Ni), % 6.0 to 8.0
49.6 to 62.5
Nitrogen (N), % 0.070 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
2.8 to 3.3
Zinc (Zn), % 0
0.020 to 0.12