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EN 1.5681 Steel vs. EN 1.1158 Steel

Both EN 1.5681 steel and EN 1.1158 steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.5681 steel and the bottom bar is EN 1.1158 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
23 to 24
Fatigue Strength, MPa 300
170 to 220
Impact Strength: V-Notched Charpy, J 110
28 to 40
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 630
470 to 500
Tensile Strength: Yield (Proof), MPa 430
240 to 310

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
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.4
Embodied Energy, MJ/kg 25
19
Embodied Water, L/kg 55
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 490
150 to 250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
17 to 18
Strength to Weight: Bending, points 21
17 to 18
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 19
15 to 16

Alloy Composition

Carbon (C), % 0.060 to 0.12
0.22 to 0.29
Chromium (Cr), % 0
0 to 0.4
Iron (Fe), % 92.9 to 94.9
97.6 to 99.38
Manganese (Mn), % 0.5 to 0.8
0.4 to 0.7
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 4.5 to 5.5
0 to 0.4
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.035