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EN 1.4123 Stainless Steel vs. Nickel 685

EN 1.4123 stainless steel belongs to the iron alloys classification, while nickel 685 belongs to the nickel alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4123 stainless steel and the bottom bar is nickel 685.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 720 to 810
1250

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 840
1000
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 23
13
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
75
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 4.2
10
Embodied Energy, MJ/kg 62
140
Embodied Water, L/kg 120
340

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26 to 29
42
Strength to Weight: Bending, points 23 to 25
31
Thermal Diffusivity, mm2/s 6.3
3.3
Thermal Shock Resistance, points 26 to 29
37

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.6
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.35 to 0.5
0.030 to 0.1
Chromium (Cr), % 14 to 16.5
18 to 21
Cobalt (Co), % 0
12 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 76.7 to 84.6
0 to 2.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.0 to 2.5
3.5 to 5.0
Nickel (Ni), % 0 to 0.5
49.6 to 62.5
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
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
Vanadium (V), % 0 to 1.5
0
Zinc (Zn), % 0
0.020 to 0.12