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EN 1.7703 Steel vs. ASTM Grade LC2-1 Steel

Both EN 1.7703 steel and ASTM grade LC2-1 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.7703 steel and the bottom bar is ASTM grade LC2-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
20
Fatigue Strength, MPa 320 to 340
430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 670 to 690
810
Tensile Strength: Yield (Proof), MPa 460 to 500
630

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 460
450
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
5.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.5
1.9
Embodied Energy, MJ/kg 35
25
Embodied Water, L/kg 61
60

Common Calculations

PREN (Pitting Resistance) 5.6
3.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
150
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
1040
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
29
Strength to Weight: Bending, points 22
25
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 19 to 20
24

Alloy Composition

Carbon (C), % 0.11 to 0.15
0 to 0.22
Chromium (Cr), % 2.0 to 2.5
1.4 to 1.9
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 94.6 to 96.4
92.5 to 95.3
Manganese (Mn), % 0.3 to 0.6
0.55 to 0.75
Molybdenum (Mo), % 0.9 to 1.1
0.3 to 0.6
Nickel (Ni), % 0 to 0.25
2.5 to 3.5
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0 to 0.0050
0 to 0.045
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0.25 to 0.35
0