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ASTM Grade LC9 Steel vs. SAE-AISI 1025 Steel

Both ASTM grade LC9 steel and SAE-AISI 1025 steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC9 steel and the bottom bar is SAE-AISI 1025 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
17 to 28
Fatigue Strength, MPa 420
190 to 280
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34
45 to 57
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 660
450 to 500
Tensile Strength: Yield (Proof), MPa 590
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 430
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.3
1.4
Embodied Energy, MJ/kg 31
18
Embodied Water, L/kg 65
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
80 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 920
170 to 470
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23
16 to 18
Strength to Weight: Bending, points 21
17 to 18
Thermal Shock Resistance, points 20
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.13
0.22 to 0.28
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.4 to 91.5
99.03 to 99.48
Manganese (Mn), % 0 to 0.9
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 8.5 to 10
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.45
0
Sulfur (S), % 0 to 0.045
0 to 0.050
Vanadium (V), % 0 to 0.030
0