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SAE-AISI 4817 Steel vs. SAE-AISI 1548 Steel

Both SAE-AISI 4817 steel and SAE-AISI 1548 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4817 steel and the bottom bar is SAE-AISI 1548 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
220 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
11 to 16
Fatigue Strength, MPa 270
270 to 430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 350
440 to 500
Tensile Strength: Ultimate (UTS), MPa 560
730 to 830
Tensile Strength: Yield (Proof), MPa 370
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.4
Embodied Energy, MJ/kg 24
19
Embodied Water, L/kg 53
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
79 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 370
470 to 1280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
26 to 30
Strength to Weight: Bending, points 19
23 to 25
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 17
23 to 27

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.44 to 0.52
Iron (Fe), % 94.7 to 95.9
98 to 98.5
Manganese (Mn), % 0.4 to 0.6
1.1 to 1.4
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 3.3 to 3.8
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0 to 0.050