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ASTM Grade LC9 Steel vs. S44635 Stainless Steel

Both ASTM grade LC9 steel and S44635 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC9 steel and the bottom bar is S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
240
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22
23
Fatigue Strength, MPa 420
390
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 660
710
Tensile Strength: Yield (Proof), MPa 590
580

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 430
1100
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
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
22
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.3
4.4
Embodied Energy, MJ/kg 31
62
Embodied Water, L/kg 65
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
150
Resilience: Unit (Modulus of Resilience), kJ/m3 920
810
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
25
Strength to Weight: Bending, points 21
23
Thermal Shock Resistance, points 20
23

Alloy Composition

Carbon (C), % 0 to 0.13
0 to 0.025
Chromium (Cr), % 0 to 0.5
24.5 to 26
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.4 to 91.5
61.5 to 68.5
Manganese (Mn), % 0 to 0.9
0 to 1.0
Molybdenum (Mo), % 0 to 0.2
3.5 to 4.5
Nickel (Ni), % 8.5 to 10
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.45
0 to 0.75
Sulfur (S), % 0 to 0.045
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8
Vanadium (V), % 0 to 0.030
0