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ASTM Grade LC3 Steel vs. AISI 415 Stainless Steel

Both ASTM grade LC3 steel and AISI 415 stainless steel are iron alloys. Both are furnished in the normalized and tempered condition. They have 85% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
17
Fatigue Strength, MPa 230
430
Poisson's Ratio 0.29
0.28
Reduction in Area, % 40
50
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 570
900
Tensile Strength: Yield (Proof), MPa 310
700

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 410
780
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
24
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
11
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
2.5
Embodied Energy, MJ/kg 23
35
Embodied Water, L/kg 52
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140
Resilience: Unit (Modulus of Resilience), kJ/m3 260
1250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
32
Strength to Weight: Bending, points 19
26
Thermal Diffusivity, mm2/s 14
6.4
Thermal Shock Resistance, points 17
33

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 0
11.5 to 14
Iron (Fe), % 94.4 to 96.5
77.8 to 84
Manganese (Mn), % 0.5 to 0.8
0.5 to 1.0
Molybdenum (Mo), % 0
0.5 to 1.0
Nickel (Ni), % 3.0 to 4.0
3.5 to 5.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 0.6
Sulfur (S), % 0 to 0.045
0 to 0.030