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EN 1.6579 Steel vs. ASTM Grade LC9 Steel

Both EN 1.6579 steel and ASTM grade LC9 steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.6579 steel and the bottom bar is ASTM grade LC9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 290
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
22
Fatigue Strength, MPa 380 to 570
420
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 850 to 980
660
Tensile Strength: Yield (Proof), MPa 600 to 910
590

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 440
430
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
10

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
8.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
2.3
Embodied Energy, MJ/kg 22
31
Embodied Water, L/kg 56
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 950 to 2210
920
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 30 to 35
23
Strength to Weight: Bending, points 25 to 28
21
Thermal Shock Resistance, points 25 to 29
20

Alloy Composition

Carbon (C), % 0.32 to 0.38
0 to 0.13
Chromium (Cr), % 1.4 to 1.7
0 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 94.2 to 96.1
87.4 to 91.5
Manganese (Mn), % 0.6 to 1.0
0 to 0.9
Molybdenum (Mo), % 0.15 to 0.35
0 to 0.2
Nickel (Ni), % 1.4 to 1.7
8.5 to 10
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.045
Vanadium (V), % 0
0 to 0.030