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EN 1.4418 Stainless Steel vs. ASTM Grade LC9 Steel

Both EN 1.4418 stainless steel and ASTM grade LC9 steel are iron alloys. They have 83% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4418 stainless steel and the bottom bar is ASTM grade LC9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16 to 20
22
Fatigue Strength, MPa 350 to 480
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 860 to 1000
660
Tensile Strength: Yield (Proof), MPa 540 to 790
590

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 870
430
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
10

Otherwise Unclassified Properties

Base Metal Price, % relative 13
8.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
2.3
Embodied Energy, MJ/kg 39
31
Embodied Water, L/kg 130
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
140
Resilience: Unit (Modulus of Resilience), kJ/m3 730 to 1590
920
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31 to 36
23
Strength to Weight: Bending, points 26 to 28
21
Thermal Shock Resistance, points 31 to 36
20

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.13
Chromium (Cr), % 15 to 17
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 73.2 to 80.2
87.4 to 91.5
Manganese (Mn), % 0 to 1.5
0 to 0.9
Molybdenum (Mo), % 0.8 to 1.5
0 to 0.2
Nickel (Ni), % 4.0 to 6.0
8.5 to 10
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.045
Vanadium (V), % 0
0 to 0.030