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EN 1.7231 Steel vs. Nickel 690

EN 1.7231 steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.7231 steel and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240 to 280
90
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 12
3.4 to 34
Fatigue Strength, MPa 360 to 500
180 to 300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 790 to 930
640 to 990
Tensile Strength: Yield (Proof), MPa 570 to 800
250 to 760

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 420
1010
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
14
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
50
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.5
8.2
Embodied Energy, MJ/kg 20
120
Embodied Water, L/kg 51
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 100
31 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 870 to 1700
160 to 1440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 28 to 33
21 to 33
Strength to Weight: Bending, points 24 to 27
20 to 27
Thermal Diffusivity, mm2/s 12
3.5
Thermal Shock Resistance, points 23 to 27
16 to 25

Alloy Composition

Carbon (C), % 0.38 to 0.45
0 to 0.050
Chromium (Cr), % 0.8 to 1.2
27 to 31
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 96.4 to 98.1
7.0 to 11
Manganese (Mn), % 0.6 to 1.0
0 to 0.5
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 0
58 to 66
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015

Comparable Variants