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SAE-AISI 9254 Steel vs. SAE-AISI 1084 Steel

Both SAE-AISI 9254 steel and SAE-AISI 1084 steel are iron alloys. They have a very high 98% 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 9254 steel and the bottom bar is SAE-AISI 1084 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
220 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
11
Fatigue Strength, MPa 280
320 to 370
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Shear Strength, MPa 410
470 to 550
Tensile Strength: Ultimate (UTS), MPa 660
780 to 930
Tensile Strength: Yield (Proof), MPa 410
510 to 600

Thermal Properties

Latent Heat of Fusion, J/g 270
240
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 46
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 49
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
81 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 450
700 to 960
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
28 to 33
Strength to Weight: Bending, points 22
24 to 27
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 20
25 to 30

Alloy Composition

Carbon (C), % 0.51 to 0.59
0.8 to 0.93
Chromium (Cr), % 0.6 to 0.8
0
Iron (Fe), % 96.1 to 97.1
98.1 to 98.6
Manganese (Mn), % 0.6 to 0.8
0.6 to 0.9
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 1.2 to 1.6
0
Sulfur (S), % 0 to 0.040
0 to 0.050