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SAE-AISI 9254 Steel vs. SAE-AISI 1012 Steel

Both SAE-AISI 9254 steel and SAE-AISI 1012 steel are iron alloys. They have a very high 97% 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 1012 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
21 to 31
Fatigue Strength, MPa 280
150 to 230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 410
230 to 250
Tensile Strength: Ultimate (UTS), MPa 660
360 to 400
Tensile Strength: Yield (Proof), MPa 410
200 to 330

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 46
53
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
1.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 49
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
80 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 450
110 to 300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
13 to 14
Strength to Weight: Bending, points 22
14 to 15
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 20
11 to 13

Alloy Composition

Carbon (C), % 0.51 to 0.59
0.1 to 0.15
Chromium (Cr), % 0.6 to 0.8
0
Iron (Fe), % 96.1 to 97.1
99.16 to 99.6
Manganese (Mn), % 0.6 to 0.8
0.3 to 0.6
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