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SAE-AISI 4620 Steel vs. Nickel 689

SAE-AISI 4620 steel belongs to the iron alloys classification, while nickel 689 belongs to the nickel alloys. There are 27 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 SAE-AISI 4620 steel and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 210
350
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 16 to 27
23
Fatigue Strength, MPa 260 to 360
420
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
80
Shear Strength, MPa 320 to 420
790
Tensile Strength: Ultimate (UTS), MPa 490 to 680
1250
Tensile Strength: Yield (Proof), MPa 350 to 550
690

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 410
990
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
450
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 3.2
70
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 1.6
11
Embodied Energy, MJ/kg 22
150
Embodied Water, L/kg 50
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 120
240
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 800
1170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17 to 24
41
Strength to Weight: Bending, points 18 to 22
30
Thermal Shock Resistance, points 15 to 20
35

Alloy Composition

Aluminum (Al), % 0
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.17 to 0.22
0.1 to 0.2
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 0
9.0 to 11
Iron (Fe), % 96.4 to 97.4
0 to 5.0
Manganese (Mn), % 0.45 to 0.65
0 to 0.5
Molybdenum (Mo), % 0.2 to 0.3
9.0 to 10.5
Nickel (Ni), % 1.7 to 2.0
48.3 to 60.9
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
2.3 to 2.8