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EN 1.0451 Steel vs. EN 1.7709 Steel

Both EN 1.0451 steel and EN 1.7709 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.0451 steel and the bottom bar is EN 1.7709 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
200 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 420
650 to 780

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
33
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
3.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.3
Embodied Energy, MJ/kg 19
32
Embodied Water, L/kg 48
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15
23 to 27
Strength to Weight: Bending, points 16
21 to 24
Thermal Diffusivity, mm2/s 13
8.9
Thermal Shock Resistance, points 13
22 to 26

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0 to 0.030
Carbon (C), % 0 to 0.15
0.17 to 0.25
Chromium (Cr), % 0 to 0.3
1.2 to 1.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 97.2 to 99.58
95.2 to 97.5
Manganese (Mn), % 0.4 to 1.2
0.4 to 0.8
Molybdenum (Mo), % 0 to 0.080
0.55 to 0.8
Nickel (Ni), % 0 to 0.3
0 to 0.6
Niobium (Nb), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0 to 0.040
0
Vanadium (V), % 0 to 0.020
0.2 to 0.35