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SAE-AISI 5140 Steel vs. SAE-AISI 1030 Steel

Both SAE-AISI 5140 steel and SAE-AISI 1030 steel are iron alloys. They have a very high 99% 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 5140 steel and the bottom bar is SAE-AISI 1030 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 290
150 to 160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 29
14 to 22
Fatigue Strength, MPa 220 to 570
210 to 320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 360 to 600
330 to 360
Tensile Strength: Ultimate (UTS), MPa 560 to 970
530 to 590
Tensile Strength: Yield (Proof), MPa 290 to 840
300 to 490

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 45
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 49
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
77 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
230 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 34
19 to 21
Strength to Weight: Bending, points 19 to 28
18 to 20
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 16 to 29
17 to 19

Alloy Composition

Carbon (C), % 0.38 to 0.43
0.28 to 0.34
Chromium (Cr), % 0.7 to 0.9
0
Iron (Fe), % 97.3 to 98.1
98.7 to 99.12
Manganese (Mn), % 0.7 to 0.9
0.6 to 0.9
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

Comparable Variants