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EN 1.7380 Steel vs. ASTM Grade LC9 Steel

Both EN 1.7380 steel and ASTM grade LC9 steel are iron alloys. 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 (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.7380 steel and the bottom bar is ASTM grade LC9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 170
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19 to 20
22
Fatigue Strength, MPa 200 to 230
420
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 540 to 550
660
Tensile Strength: Yield (Proof), MPa 290 to 330
590

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 460
430
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
10

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
8.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.8
2.3
Embodied Energy, MJ/kg 23
31
Embodied Water, L/kg 59
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 98
140
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 280
920
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 20
23
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 15 to 16
20

Alloy Composition

Carbon (C), % 0.080 to 0.14
0 to 0.13
Chromium (Cr), % 2.0 to 2.5
0 to 0.5
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 94.6 to 96.6
87.4 to 91.5
Manganese (Mn), % 0.4 to 0.8
0 to 0.9
Molybdenum (Mo), % 0.9 to 1.1
0 to 0.2
Nickel (Ni), % 0
8.5 to 10
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.45
Sulfur (S), % 0 to 0.010
0 to 0.045
Vanadium (V), % 0
0 to 0.030