AISI 201LN Stainless Steel vs. ASTM A387 Grade 12 Steel
Both AISI 201LN stainless steel and ASTM A387 grade 12 steel are iron alloys. They have 73% 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 AISI 201LN stainless steel and the bottom bar is ASTM A387 grade 12 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 320 | |
| 140 to 160 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 25 to 51 | |
| 25 |
| Fatigue Strength, MPa | 340 to 540 | |
| 190 to 230 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Shear Strength, MPa | 530 to 680 | |
| 300 to 330 |
| Tensile Strength: Ultimate (UTS), MPa | 740 to 1060 | |
| 470 to 520 |
| Tensile Strength: Yield (Proof), MPa | 350 to 770 | |
| 260 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 880 | |
| 430 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1470 |
| Melting Onset (Solidus), °C | 1370 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 44 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 2.8 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 1.6 |
| Embodied Energy, MJ/kg | 38 | |
| 21 |
| Embodied Water, L/kg | 140 | |
| 51 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 2.7 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 230 to 310 | |
| 98 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 310 to 1520 | |
| 180 to 250 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 27 to 38 | |
| 16 to 18 |
| Strength to Weight: Bending, points | 24 to 30 | |
| 17 to 18 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 12 |
| Thermal Shock Resistance, points | 16 to 23 | |
| 14 to 15 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0.050 to 0.17 |
| Chromium (Cr), % | 16 to 17.5 | |
| 0.8 to 1.2 |
| Copper (Cu), % | 0 to 1.0 | |
| 0 |
| Iron (Fe), % | 67.9 to 73.5 | |
| 97 to 98.2 |
| Manganese (Mn), % | 6.4 to 7.5 | |
| 0.4 to 0.65 |
| Molybdenum (Mo), % | 0 | |
| 0.45 to 0.6 |
| Nickel (Ni), % | 4.0 to 5.0 | |
| 0 |
| Nitrogen (N), % | 0.1 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.75 | |
| 0.15 to 0.4 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.025 |