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EN 1.6781 Steel vs. ASTM Grade LC2-1 Steel

Both EN 1.6781 steel and ASTM grade LC2-1 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.6781 steel and the bottom bar is ASTM grade LC2-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
20
Fatigue Strength, MPa 450
430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 830
810
Tensile Strength: Yield (Proof), MPa 680
630

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 450
450
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
5.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.9
1.9
Embodied Energy, MJ/kg 25
25
Embodied Water, L/kg 60
60

Common Calculations

PREN (Pitting Resistance) 3.3
3.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1220
1040
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
29
Strength to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 24
24

Alloy Composition

Carbon (C), % 0.15 to 0.19
0 to 0.22
Chromium (Cr), % 1.3 to 1.8
1.4 to 1.9
Iron (Fe), % 92.6 to 94.6
92.5 to 95.3
Manganese (Mn), % 0.55 to 0.8
0.55 to 0.75
Molybdenum (Mo), % 0.45 to 0.6
0.3 to 0.6
Nickel (Ni), % 3.0 to 3.5
2.5 to 3.5
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.045