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EN 1.0145 Steel vs. EN 1.5680 Steel

Both EN 1.0145 steel and EN 1.5680 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 1.0145 steel and the bottom bar is EN 1.5680 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
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 51
48
Thermal Expansion, µm/m-K 12
13

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Carbon (C), % 0 to 0.21
0 to 0.15
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 97.5 to 100
93.4 to 95
Manganese (Mn), % 0 to 1.6
0.3 to 0.8
Nickel (Ni), % 0
4.8 to 5.3
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.0050
Vanadium (V), % 0
0 to 0.050