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SAE-AISI 4028 Steel vs. Nickel 684

SAE-AISI 4028 steel belongs to the iron alloys classification, while nickel 684 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 4028 steel and the bottom bar is nickel 684.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 190
310
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 23
11
Fatigue Strength, MPa 180 to 330
390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
76
Shear Strength, MPa 310 to 380
710
Tensile Strength: Ultimate (UTS), MPa 490 to 630
1190
Tensile Strength: Yield (Proof), MPa 260 to 520
800

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
1000
Melting Completion (Liquidus), °C 1460
1370
Melting Onset (Solidus), °C 1420
1320
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
75
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.5
10
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 47
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 95
120
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 720
1610
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17 to 22
40
Strength to Weight: Bending, points 18 to 21
30
Thermal Shock Resistance, points 16 to 20
34

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.25 to 0.3
0 to 0.15
Chromium (Cr), % 0
15 to 20
Cobalt (Co), % 0
13 to 20
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 98.1 to 98.7
0 to 4.0
Manganese (Mn), % 0.7 to 0.9
0 to 0.75
Molybdenum (Mo), % 0.2 to 0.3
3.0 to 5.0
Nickel (Ni), % 0
42.7 to 64
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0.15 to 0.35
0 to 0.75
Sulfur (S), % 0.035 to 0.050
0 to 0.015
Titanium (Ti), % 0
2.5 to 3.3