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EN 1.3518 Steel vs. EN 1.1244 Steel

Both EN 1.3518 steel and EN 1.1244 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.3518 steel and the bottom bar is EN 1.1244 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
210 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Tensile Strength: Ultimate (UTS), MPa 630
730 to 770

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 43
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 51
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
26 to 28
Strength to Weight: Bending, points 21
23 to 24
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 19
23 to 25

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 0.050
Carbon (C), % 0.93 to 1.1
0.65 to 0.75
Chromium (Cr), % 0.9 to 1.2
0
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 96.3 to 97.8
98.1 to 99.2
Manganese (Mn), % 0.9 to 1.2
0.8 to 1.1
Molybdenum (Mo), % 0 to 0.1
0
Oxygen (O), % 0 to 0.0015
0 to 0.0020
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.45 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030