EN 1.5521 Steel vs. SAE-AISI 1108 Steel
Both EN 1.5521 steel and SAE-AISI 1108 steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.5521 steel and the bottom bar is SAE-AISI 1108 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 130 to 180 | |
110 to 140 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 11 to 21 | |
23 to 34 |
Fatigue Strength, MPa | 210 to 310 | |
170 to 260 |
Poisson's Ratio | 0.29 | |
0.29 |
Reduction in Area, % | 59 to 72 | |
45 to 57 |
Shear Modulus, GPa | 73 | |
73 |
Shear Strength, MPa | 310 to 360 | |
250 to 280 |
Tensile Strength: Ultimate (UTS), MPa | 430 to 1390 | |
380 to 440 |
Tensile Strength: Yield (Proof), MPa | 300 to 490 | |
220 to 360 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
250 |
Maximum Temperature: Mechanical, °C | 400 | |
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 | 51 | |
52 |
Thermal Expansion, µm/m-K | 13 | |
12 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.1 | |
7.0 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
8.0 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 1.9 | |
1.8 |
Density, g/cm3 | 7.8 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 1.4 | |
1.4 |
Embodied Energy, MJ/kg | 19 | |
18 |
Embodied Water, L/kg | 47 | |
46 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 44 to 230 | |
95 to 110 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 to 630 | |
130 to 340 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 15 to 49 | |
13 to 16 |
Strength to Weight: Bending, points | 16 to 35 | |
15 to 16 |
Thermal Diffusivity, mm2/s | 14 | |
14 |
Thermal Shock Resistance, points | 13 to 41 | |
12 to 14 |
Alloy Composition
Boron (B), % | 0.00080 to 0.0050 | |
0 |
Carbon (C), % | 0.16 to 0.2 | |
0.080 to 0.13 |
Copper (Cu), % | 0 to 0.25 | |
0 |
Iron (Fe), % | 98 to 98.9 | |
98.9 to 99.24 |
Manganese (Mn), % | 0.9 to 1.2 | |
0.6 to 0.8 |
Phosphorus (P), % | 0 to 0.025 | |
0 to 0.040 |
Silicon (Si), % | 0 to 0.3 | |
0 |
Sulfur (S), % | 0 to 0.025 | |
0.080 to 0.13 |