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SAE-AISI 9254 Steel vs. SAE-AISI 1030 Steel

Both SAE-AISI 9254 steel and SAE-AISI 1030 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 1030 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150 to 160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
14 to 22
Fatigue Strength, MPa 280
210 to 320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 410
330 to 360
Tensile Strength: Ultimate (UTS), MPa 660
530 to 590
Tensile Strength: Yield (Proof), MPa 410
300 to 490

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
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
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.0

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
18
Embodied Water, L/kg 49
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
77 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 450
230 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
19 to 21
Strength to Weight: Bending, points 22
18 to 20
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 20
17 to 19

Alloy Composition

Carbon (C), % 0.51 to 0.59
0.28 to 0.34
Chromium (Cr), % 0.6 to 0.8
0
Iron (Fe), % 96.1 to 97.1
98.7 to 99.12
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