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ASTM Grade LC9 Steel vs. EN 1.4317 Stainless Steel

Both ASTM grade LC9 steel and EN 1.4317 stainless steel are iron alloys. Both are furnished in the quenched and tempered condition. They have 87% of their average alloy composition in common. There are 27 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 EN 1.4317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
17
Fatigue Strength, MPa 420
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 660
860
Tensile Strength: Yield (Proof), MPa 590
630

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 430
770
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 10
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
10
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.3
2.4
Embodied Energy, MJ/kg 31
33
Embodied Water, L/kg 65
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
130
Resilience: Unit (Modulus of Resilience), kJ/m3 920
1010
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
31
Strength to Weight: Bending, points 21
26
Thermal Shock Resistance, points 20
30

Alloy Composition

Carbon (C), % 0 to 0.13
0 to 0.060
Chromium (Cr), % 0 to 0.5
12 to 13.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.4 to 91.5
78.7 to 84.5
Manganese (Mn), % 0 to 0.9
0 to 1.0
Molybdenum (Mo), % 0 to 0.2
0 to 0.7
Nickel (Ni), % 8.5 to 10
3.5 to 5.0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.045
0 to 0.025
Vanadium (V), % 0 to 0.030
0