SAE-AISI 4130 Steel vs. EN 1.6771 Steel
Both SAE-AISI 4130 steel and EN 1.6771 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 4130 steel and the bottom bar is EN 1.6771 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 200 to 300 | |
280 to 350 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 13 to 26 | |
8.0 to 8.7 |
Fatigue Strength, MPa | 320 to 660 | |
440 to 680 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 530 to 1040 | |
930 to 1180 |
Tensile Strength: Yield (Proof), MPa | 440 to 980 | |
740 to 1140 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
250 |
Maximum Temperature: Mechanical, °C | 420 | |
440 |
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 | 43 | |
46 |
Thermal Expansion, µm/m-K | 13 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
8.0 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
9.2 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.4 | |
5.0 |
Density, g/cm3 | 7.8 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
1.9 |
Embodied Energy, MJ/kg | 20 | |
25 |
Embodied Water, L/kg | 50 | |
58 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 83 to 180 | |
75 to 93 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 500 to 2550 | |
1460 to 3450 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 19 to 37 | |
33 to 41 |
Strength to Weight: Bending, points | 19 to 29 | |
27 to 31 |
Thermal Diffusivity, mm2/s | 12 | |
13 |
Thermal Shock Resistance, points | 16 to 31 | |
27 to 35 |
Alloy Composition
Carbon (C), % | 0.28 to 0.33 | |
0.27 to 0.33 |
Chromium (Cr), % | 0.8 to 1.1 | |
0.8 to 1.2 |
Iron (Fe), % | 97.3 to 98.2 | |
92.2 to 95 |
Manganese (Mn), % | 0.4 to 0.6 | |
0.6 to 1.0 |
Molybdenum (Mo), % | 0.15 to 0.25 | |
0.3 to 0.6 |
Nickel (Ni), % | 0 | |
3.0 to 4.0 |
Phosphorus (P), % | 0 to 0.035 | |
0 to 0.030 |
Silicon (Si), % | 0.15 to 0.35 | |
0 to 0.6 |
Sulfur (S), % | 0 to 0.040 | |
0 to 0.020 |