Annealed AISI 420 vs. EN 1.4110 +A Steel
Both annealed AISI 420 and EN 1.4110 +A steel are iron alloys. Both are furnished in the annealed condition. They have a very high 98% of their average alloy composition in common.
For each property being compared, the top bar is annealed AISI 420 and the bottom bar is EN 1.4110 +A steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 190 | |
250 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 15 | |
14 |
Fatigue Strength, MPa | 220 | |
250 |
Poisson's Ratio | 0.28 | |
0.28 |
Rockwell B Hardness | 84 | |
86 |
Shear Modulus, GPa | 76 | |
76 |
Shear Strength, MPa | 420 | |
470 |
Tensile Strength: Ultimate (UTS), MPa | 690 | |
770 |
Tensile Strength: Yield (Proof), MPa | 380 | |
430 |
Thermal Properties
Latent Heat of Fusion, J/g | 280 | |
280 |
Maximum Temperature: Corrosion, °C | 390 | |
390 |
Maximum Temperature: Mechanical, °C | 620 | |
790 |
Melting Completion (Liquidus), °C | 1510 | |
1440 |
Melting Onset (Solidus), °C | 1450 | |
1400 |
Specific Heat Capacity, J/kg-K | 480 | |
480 |
Thermal Conductivity, W/m-K | 27 | |
30 |
Thermal Expansion, µm/m-K | 10 | |
11 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 3.0 | |
2.8 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 | |
3.2 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 7.5 | |
8.0 |
Density, g/cm3 | 7.7 | |
7.7 |
Embodied Carbon, kg CO2/kg material | 2.0 | |
2.3 |
Embodied Energy, MJ/kg | 28 | |
33 |
Embodied Water, L/kg | 100 | |
110 |
Common Calculations
PREN (Pitting Resistance) | 14 | |
16 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 88 | |
90 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 | |
480 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 25 | |
28 |
Strength to Weight: Bending, points | 22 | |
24 |
Thermal Diffusivity, mm2/s | 7.3 | |
8.1 |
Thermal Shock Resistance, points | 25 | |
27 |
Alloy Composition
Carbon (C), % | 0.15 to 0.4 | |
0.48 to 0.6 |
Chromium (Cr), % | 12 to 14 | |
13 to 15 |
Iron (Fe), % | 82.3 to 87.9 | |
81.4 to 86 |
Manganese (Mn), % | 0 to 1.0 | |
0 to 1.0 |
Molybdenum (Mo), % | 0 to 0.5 | |
0.5 to 0.8 |
Nickel (Ni), % | 0 to 0.75 | |
0 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.040 |
Silicon (Si), % | 0 to 1.0 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.015 |
Vanadium (V), % | 0 | |
0 to 0.15 |