ASTM A182 Grade FR vs. ASTM A266 Carbon Steel
Both ASTM A182 grade FR and ASTM A266 carbon steel are iron alloys.
For each property being compared, the top bar is ASTM A182 grade FR and the bottom bar is ASTM A266 carbon steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 | |
| 150 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 28 | |
| 21 to 26 |
| Fatigue Strength, MPa | 270 | |
| 170 to 200 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Reduction in Area, % | 43 | |
| 34 to 43 |
| Shear Modulus, GPa | 72 | |
| 73 |
| Shear Strength, MPa | 320 | |
| 320 to 380 |
| Tensile Strength: Ultimate (UTS), MPa | 490 | |
| 500 to 600 |
| Tensile Strength: Yield (Proof), MPa | 360 | |
| 230 to 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 400 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 52 | |
| 51 to 52 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 8.1 to 8.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.3 | |
| 1.8 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 1.4 |
| Embodied Energy, MJ/kg | 21 | |
| 18 to 19 |
| Embodied Water, L/kg | 52 | |
| 46 to 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 340 | |
| 140 to 230 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 17 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 17 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 14 | |
| 14 |
| Thermal Shock Resistance, points | 14 | |
| 16 to 19 |