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ASTM Grade LC9 Steel vs. S21600 Stainless Steel

Both ASTM grade LC9 steel and S21600 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 27 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 S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
46
Fatigue Strength, MPa 420
360
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34
56
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 660
710
Tensile Strength: Yield (Proof), MPa 590
390

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 430
990
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
17

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
3.6
Embodied Energy, MJ/kg 31
50
Embodied Water, L/kg 65
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
270
Resilience: Unit (Modulus of Resilience), kJ/m3 920
370
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
23
Thermal Shock Resistance, points 20
15

Alloy Composition

Carbon (C), % 0 to 0.13
0 to 0.080
Chromium (Cr), % 0 to 0.5
17.5 to 22
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.4 to 91.5
57.6 to 67.8
Manganese (Mn), % 0 to 0.9
7.5 to 9.0
Molybdenum (Mo), % 0 to 0.2
2.0 to 3.0
Nickel (Ni), % 8.5 to 10
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.45
0 to 0.75
Sulfur (S), % 0 to 0.045
0 to 0.030
Vanadium (V), % 0 to 0.030
0