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ASTM Grade LC3 Steel vs. AISI 309 Stainless Steel

Both ASTM grade LC3 steel and AISI 309 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC3 steel and the bottom bar is AISI 309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
180 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
34 to 47
Fatigue Strength, MPa 230
250 to 280
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 570
600 to 710
Tensile Strength: Yield (Proof), MPa 310
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
980
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
16
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.6
Embodied Energy, MJ/kg 23
51
Embodied Water, L/kg 52
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 260
170 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
21 to 25
Strength to Weight: Bending, points 19
20 to 23
Thermal Diffusivity, mm2/s 14
4.3
Thermal Shock Resistance, points 17
14 to 16

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.2
Chromium (Cr), % 0
22 to 24
Iron (Fe), % 94.4 to 96.5
58 to 66
Manganese (Mn), % 0.5 to 0.8
0 to 2.0
Nickel (Ni), % 3.0 to 4.0
12 to 15
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.045
0 to 0.030