EN 1.4057 +A Steel vs. EN 1.4313 +A Steel
Both EN 1.4057 +A steel and EN 1.4313 +A steel are iron alloys. Both are furnished in the annealed condition. They have a very high 97% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4057 +A steel and the bottom bar is EN 1.4313 +A steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 260 | |
280 |
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
200 |
Elongation at Break, % | 17 | |
17 |
Fatigue Strength, MPa | 320 | |
410 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 77 | |
76 |
Shear Strength, MPa | 520 | |
590 |
Tensile Strength: Ultimate (UTS), MPa | 840 | |
960 |
Tensile Strength: Yield (Proof), MPa | 530 | |
670 |
Thermal Properties
Latent Heat of Fusion, J/g | 280 | |
280 |
Maximum Temperature: Corrosion, °C | 400 | |
390 |
Maximum Temperature: Mechanical, °C | 850 | |
780 |
Melting Completion (Liquidus), °C | 1440 | |
1450 |
Melting Onset (Solidus), °C | 1390 | |
1400 |
Specific Heat Capacity, J/kg-K | 480 | |
480 |
Thermal Conductivity, W/m-K | 25 | |
25 |
Thermal Expansion, µm/m-K | 10 | |
10 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
2.9 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
3.3 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 9.5 | |
10 |
Density, g/cm3 | 7.7 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 2.2 | |
2.4 |
Embodied Energy, MJ/kg | 32 | |
34 |
Embodied Water, L/kg | 120 | |
110 |
Common Calculations
PREN (Pitting Resistance) | 16 | |
15 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
150 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 700 | |
1140 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 30 | |
34 |
Strength to Weight: Bending, points | 26 | |
28 |
Thermal Diffusivity, mm2/s | 6.7 | |
6.7 |
Thermal Shock Resistance, points | 30 | |
35 |
Alloy Composition
Carbon (C), % | 0.12 to 0.22 | |
0 to 0.050 |
Chromium (Cr), % | 15 to 17 | |
12 to 14 |
Iron (Fe), % | 77.7 to 83.4 | |
78.5 to 84.2 |
Manganese (Mn), % | 0 to 1.5 | |
0 to 1.5 |
Molybdenum (Mo), % | 0 | |
0.3 to 0.7 |
Nickel (Ni), % | 1.5 to 2.5 | |
3.5 to 4.5 |
Nitrogen (N), % | 0 | |
0 to 0.020 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.040 |
Silicon (Si), % | 0 to 1.0 | |
0 to 0.7 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.015 |