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EN 1.8505 Steel vs. ASTM A372 Grade L Steel

Both EN 1.8505 steel and ASTM A372 grade L steel are iron alloys. Both are furnished in the quenched and tempered condition. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.8505 steel and the bottom bar is ASTM A372 grade L steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
350
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13
14
Fatigue Strength, MPa 540
670
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 630
700
Tensile Strength: Ultimate (UTS), MPa 1050
1160
Tensile Strength: Yield (Proof), MPa 860
1040

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
430
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 39
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
3.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.7
Embodied Energy, MJ/kg 22
22
Embodied Water, L/kg 65
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1950
2890
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 37
41
Strength to Weight: Bending, points 30
31
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 31
34

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.28 to 0.35
0.38 to 0.43
Chromium (Cr), % 1.5 to 1.8
0.7 to 0.9
Iron (Fe), % 95.4 to 97.1
95.2 to 96.3
Manganese (Mn), % 0.4 to 0.7
0.6 to 0.8
Molybdenum (Mo), % 0.2 to 0.4
0.2 to 0.3
Nickel (Ni), % 0
1.7 to 2.0
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.010