ASTM A387 Grade 21 Steel vs. N07041 Nickel
ASTM A387 grade 21 steel belongs to the iron alloys classification, while N07041 nickel belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is ASTM A387 grade 21 steel and the bottom bar is N07041 nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 220 |
| Elongation at Break, % | 21 | |
| 14 |
| Fatigue Strength, MPa | 160 to 250 | |
| 540 |
| Shear Strength, MPa | 310 to 370 | |
| 850 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 590 | |
| 1400 |
| Tensile Strength: Yield (Proof), MPa | 230 to 350 | |
| 1050 |
Thermal Properties
| Melting Onset (Solidus), °C | 1430 | |
| 1320 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 450 |
| Thermal Conductivity, W/m-K | 41 | |
| 11 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.9 | |
| 8.2 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 84 to 110 | |
| 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 320 | |
| 2510 |
| Stiffness to Weight: Axial, points | 13 | |
| 15 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 18 to 21 | |
| 47 |
| Strength to Weight: Bending, points | 18 to 20 | |
| 34 |
| Thermal Diffusivity, mm2/s | 11 | |
| 3.0 |
| Thermal Shock Resistance, points | 14 to 17 | |
| 38 |