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EN 1.1244 Steel vs. EN 1.7006 Steel

Both EN 1.1244 steel and EN 1.7006 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.1244 steel and the bottom bar is EN 1.7006 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 220
160 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 730 to 770
530 to 1890

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
46
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 28
19 to 67
Strength to Weight: Bending, points 23 to 24
19 to 43
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 23 to 25
16 to 56

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Carbon (C), % 0.65 to 0.75
0.42 to 0.5
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 98.1 to 99.2
97.6 to 98.7
Manganese (Mn), % 0.8 to 1.1
0.5 to 0.8
Oxygen (O), % 0 to 0.0020
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035