EN 1.4301 +AT Steel vs. EN 1.4306 +AT Steel
Both EN 1.4301 +AT steel and EN 1.4306 +AT steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a very high 98% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4301 +AT steel and the bottom bar is EN 1.4306 +AT steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 190 | |
190 |
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
200 |
Elongation at Break, % | 46 | |
45 |
Fatigue Strength, MPa | 200 | |
190 |
Impact Strength: V-Notched Charpy, J | 94 | |
90 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 77 | |
77 |
Shear Strength, MPa | 430 | |
400 |
Tensile Strength: Ultimate (UTS), MPa | 610 | |
580 |
Tensile Strength: Yield (Proof), MPa | 220 | |
210 |
Thermal Properties
Latent Heat of Fusion, J/g | 290 | |
290 |
Maximum Temperature: Corrosion, °C | 420 | |
420 |
Maximum Temperature: Mechanical, °C | 940 | |
960 |
Melting Completion (Liquidus), °C | 1430 | |
1420 |
Melting Onset (Solidus), °C | 1380 | |
1380 |
Specific Heat Capacity, J/kg-K | 480 | |
480 |
Thermal Conductivity, W/m-K | 15 | |
15 |
Thermal Expansion, µm/m-K | 16 | |
16 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
2.4 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
2.7 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 15 | |
16 |
Density, g/cm3 | 7.8 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 3.0 | |
3.2 |
Embodied Energy, MJ/kg | 43 | |
45 |
Embodied Water, L/kg | 140 | |
150 |
Common Calculations
PREN (Pitting Resistance) | 19 | |
20 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 220 | |
200 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 120 | |
110 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 22 | |
21 |
Strength to Weight: Bending, points | 20 | |
20 |
Thermal Diffusivity, mm2/s | 4.0 | |
4.0 |
Thermal Shock Resistance, points | 14 | |
13 |
Alloy Composition
Carbon (C), % | 0 to 0.070 | |
0 to 0.030 |
Chromium (Cr), % | 17.5 to 19.5 | |
18 to 20 |
Iron (Fe), % | 66.8 to 74.5 | |
64.8 to 72 |
Manganese (Mn), % | 0 to 2.0 | |
0 to 2.0 |
Nickel (Ni), % | 8.0 to 10.5 | |
10 to 12 |
Nitrogen (N), % | 0 to 0.1 | |
0 to 0.1 |
Phosphorus (P), % | 0 to 0.045 | |
0 to 0.045 |
Silicon (Si), % | 0 to 1.0 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.015 |