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EN 1.4971 Stainless Steel vs. Nickel 685

EN 1.4971 stainless steel belongs to the iron alloys classification, while nickel 685 belongs to the nickel alloys. They have 58% of their average alloy composition in common. 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 EN 1.4971 stainless steel and the bottom bar is nickel 685.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
350
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
17
Fatigue Strength, MPa 270
470
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
77
Shear Strength, MPa 530
770
Tensile Strength: Ultimate (UTS), MPa 800
1250
Tensile Strength: Yield (Proof), MPa 340
850

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Mechanical, °C 1100
1000
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1410
1330
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 13
13
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
75
Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 7.6
10
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 300
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
190
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26
42
Strength to Weight: Bending, points 23
31
Thermal Diffusivity, mm2/s 3.4
3.3
Thermal Shock Resistance, points 19
37

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.6
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.080 to 0.16
0.030 to 0.1
Chromium (Cr), % 20 to 22.5
18 to 21
Cobalt (Co), % 18.5 to 21
12 to 15
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 24.3 to 37.1
0 to 2.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
3.5 to 5.0
Nickel (Ni), % 19 to 21
49.6 to 62.5
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
2.8 to 3.3
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
0.020 to 0.12