EN 1.7725 Steel vs. EN 1.4477 Stainless Steel
Both EN 1.7725 steel and EN 1.4477 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.7725 steel and the bottom bar is EN 1.4477 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 250 to 300 | |
270 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
210 |
Elongation at Break, % | 14 | |
22 to 23 |
Fatigue Strength, MPa | 390 to 550 | |
420 to 490 |
Impact Strength: V-Notched Charpy, J | 34 to 35 | |
110 |
Poisson's Ratio | 0.29 | |
0.27 |
Shear Modulus, GPa | 73 | |
81 |
Tensile Strength: Ultimate (UTS), MPa | 830 to 1000 | |
880 to 930 |
Tensile Strength: Yield (Proof), MPa | 610 to 860 | |
620 to 730 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
300 |
Maximum Temperature: Mechanical, °C | 440 | |
1100 |
Melting Completion (Liquidus), °C | 1460 | |
1430 |
Melting Onset (Solidus), °C | 1420 | |
1380 |
Specific Heat Capacity, J/kg-K | 470 | |
480 |
Thermal Conductivity, W/m-K | 39 | |
13 |
Thermal Expansion, µm/m-K | 13 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
2.2 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
2.5 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.9 | |
20 |
Density, g/cm3 | 7.8 | |
7.7 |
Embodied Carbon, kg CO2/kg material | 1.8 | |
3.7 |
Embodied Energy, MJ/kg | 24 | |
52 |
Embodied Water, L/kg | 54 | |
190 |
Common Calculations
PREN (Pitting Resistance) | 2.8 | |
41 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 130 | |
180 to 190 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 980 to 1940 | |
940 to 1290 |
Stiffness to Weight: Axial, points | 13 | |
15 |
Stiffness to Weight: Bending, points | 24 | |
25 |
Strength to Weight: Axial, points | 29 to 35 | |
31 to 33 |
Strength to Weight: Bending, points | 25 to 28 | |
26 to 27 |
Thermal Diffusivity, mm2/s | 11 | |
3.5 |
Thermal Shock Resistance, points | 24 to 29 | |
23 to 25 |
Alloy Composition
Carbon (C), % | 0.27 to 0.34 | |
0 to 0.030 |
Chromium (Cr), % | 1.3 to 1.7 | |
28 to 30 |
Copper (Cu), % | 0 | |
0 to 0.8 |
Iron (Fe), % | 95.7 to 97.5 | |
56.6 to 63.6 |
Manganese (Mn), % | 0.6 to 1.0 | |
0.8 to 1.5 |
Molybdenum (Mo), % | 0.3 to 0.5 | |
1.5 to 2.6 |
Nickel (Ni), % | 0 | |
5.8 to 7.5 |
Nitrogen (N), % | 0 | |
0.3 to 0.4 |
Phosphorus (P), % | 0 to 0.025 | |
0 to 0.030 |
Silicon (Si), % | 0 to 0.6 | |
0 to 0.5 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.015 |
Vanadium (V), % | 0.050 to 0.15 | |
0 |