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EN 1.4941 Stainless Steel vs. Nickel 689

EN 1.4941 stainless steel belongs to the iron alloys classification, while nickel 689 belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4941 stainless steel and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
350
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 39
23
Fatigue Strength, MPa 180
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Shear Strength, MPa 400
790
Tensile Strength: Ultimate (UTS), MPa 590
1250
Tensile Strength: Yield (Proof), MPa 210
690

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 940
990
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 16
70
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 3.3
11
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 140
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
240
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21
41
Strength to Weight: Bending, points 20
30
Thermal Shock Resistance, points 13
35

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0.0015 to 0.0050
0.0030 to 0.010
Carbon (C), % 0.040 to 0.080
0.1 to 0.2
Chromium (Cr), % 17 to 19
18 to 20
Cobalt (Co), % 0
9.0 to 11
Iron (Fe), % 65.1 to 73.6
0 to 5.0
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 9.0 to 12
48.3 to 60.9
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0.4 to 0.8
2.3 to 2.8