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ASTM Grade LC9 Steel vs. S30815 Stainless Steel

Both ASTM grade LC9 steel and S30815 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC9 steel and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
45
Fatigue Strength, MPa 420
320
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34
56
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 660
680
Tensile Strength: Yield (Proof), MPa 590
350

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Maximum Temperature: Mechanical, °C 430
1020
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.3
3.3
Embodied Energy, MJ/kg 31
47
Embodied Water, L/kg 65
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
260
Resilience: Unit (Modulus of Resilience), kJ/m3 920
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
25
Strength to Weight: Bending, points 21
22
Thermal Shock Resistance, points 20
15

Alloy Composition

Carbon (C), % 0 to 0.13
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0 to 0.5
20 to 22
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.4 to 91.5
62.8 to 68.4
Manganese (Mn), % 0 to 0.9
0 to 0.8
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 8.5 to 10
10 to 12
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.45
1.4 to 2.0
Sulfur (S), % 0 to 0.045
0 to 0.030
Vanadium (V), % 0 to 0.030
0