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EN 1.5680 Steel vs. EN 1.0044 Steel

Both EN 1.5680 steel and EN 1.0044 steel are iron alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.5680 steel and the bottom bar is EN 1.0044 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
21
Fatigue Strength, MPa 310
180
Impact Strength: V-Notched Charpy, J 71
31
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 390
300
Tensile Strength: Ultimate (UTS), MPa 620
470
Tensile Strength: Yield (Proof), MPa 440
250

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
1.9
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.9
1.4
Embodied Energy, MJ/kg 26
18
Embodied Water, L/kg 55
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
85
Resilience: Unit (Modulus of Resilience), kJ/m3 510
170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 18
15

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.25
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 93.4 to 95
97.4 to 100
Manganese (Mn), % 0.3 to 0.8
0 to 1.6
Nickel (Ni), % 4.8 to 5.3
0
Nitrogen (N), % 0
0 to 0.014
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0 to 0.35
0
Sulfur (S), % 0 to 0.0050
0 to 0.045
Vanadium (V), % 0 to 0.050
0