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EN 1.0571 Steel vs. ASTM Grade LC9 Steel

Both EN 1.0571 steel and ASTM grade LC9 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have a moderately high 91% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.0571 steel and the bottom bar is ASTM grade LC9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
22
Fatigue Strength, MPa 220
420
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 550
660
Tensile Strength: Yield (Proof), MPa 310
590

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
430
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
10

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
8.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
2.3
Embodied Energy, MJ/kg 21
31
Embodied Water, L/kg 49
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140
Resilience: Unit (Modulus of Resilience), kJ/m3 260
920
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 17
20

Alloy Composition

Aluminum (Al), % 0 to 0.060
0
Carbon (C), % 0 to 0.2
0 to 0.13
Chromium (Cr), % 0 to 0.3
0 to 0.5
Copper (Cu), % 0 to 0.2
0 to 0.3
Iron (Fe), % 96.5 to 99
87.4 to 91.5
Manganese (Mn), % 0.9 to 1.7
0 to 0.9
Molybdenum (Mo), % 0 to 0.080
0 to 0.2
Nickel (Ni), % 0 to 0.3
8.5 to 10
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.045
Vanadium (V), % 0 to 0.1
0 to 0.030