EN 1.4371 Stainless Steel vs. ASTM A372 Grade M Steel
Both EN 1.4371 stainless steel and ASTM A372 grade M steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is EN 1.4371 stainless steel and the bottom bar is ASTM A372 grade M steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 to 230 | |
| 240 to 280 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 45 to 51 | |
| 18 to 21 |
| Fatigue Strength, MPa | 290 to 340 | |
| 450 to 520 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Shear Strength, MPa | 520 to 540 | |
| 510 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 740 to 750 | |
| 810 to 910 |
| Tensile Strength: Yield (Proof), MPa | 320 to 340 | |
| 660 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 880 | |
| 450 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1460 |
| Melting Onset (Solidus), °C | 1370 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 46 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 8.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 9.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 5.0 |
| Density, g/cm3 | 7.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.0 |
| Embodied Energy, MJ/kg | 38 | |
| 27 |
| Embodied Water, L/kg | 140 | |
| 61 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 3.4 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 270 to 310 | |
| 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 to 300 | |
| 1140 to 1580 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 27 | |
| 29 to 32 |
| Strength to Weight: Bending, points | 24 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 12 |
| Thermal Shock Resistance, points | 16 | |
| 24 to 27 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.23 |
| Chromium (Cr), % | 16 to 17.5 | |
| 1.5 to 2.0 |
| Copper (Cu), % | 0 to 1.0 | |
| 0 |
| Iron (Fe), % | 66.7 to 74.4 | |
| 92.5 to 95.1 |
| Manganese (Mn), % | 6.0 to 8.0 | |
| 0.2 to 0.4 |
| Molybdenum (Mo), % | 0 | |
| 0.4 to 0.6 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 2.8 to 3.9 |
| Nitrogen (N), % | 0.15 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.3 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.010 |
| Vanadium (V), % | 0 | |
| 0 to 0.080 |