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EN 1.5662 Steel vs. EN 1.7378 Steel

Both EN 1.5662 steel and EN 1.7378 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.5662 steel and the bottom bar is EN 1.7378 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
17
Fatigue Strength, MPa 380 to 450
330
Impact Strength: V-Notched Charpy, J 91 to 130
38
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 460 to 470
430
Tensile Strength: Ultimate (UTS), MPa 740 to 750
700
Tensile Strength: Yield (Proof), MPa 550 to 660
490

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 430
460
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
4.0
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 2.3
2.3
Embodied Energy, MJ/kg 31
33
Embodied Water, L/kg 63
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 810 to 1150
630
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
25
Strength to Weight: Bending, points 23
22
Thermal Shock Resistance, points 22
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0 to 0.1
0.050 to 0.1
Chromium (Cr), % 0
2.2 to 2.6
Iron (Fe), % 88.6 to 91.2
94.6 to 96.1
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.7
Molybdenum (Mo), % 0 to 0.1
0.9 to 1.1
Nickel (Ni), % 8.5 to 10
0
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.35
0.15 to 0.45
Sulfur (S), % 0 to 0.0050
0 to 0.010
Titanium (Ti), % 0
0.050 to 0.1
Vanadium (V), % 0 to 0.050
0.2 to 0.3