ASTM A387 Grade 21L Class 1 vs. N08810 Stainless Steel
Both ASTM A387 grade 21L class 1 and N08810 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 49% of their average alloy composition in common. There are 31 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 ASTM A387 grade 21L class 1 and the bottom bar is N08810 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
200 |
Elongation at Break, % | 21 | |
33 |
Fatigue Strength, MPa | 160 | |
160 |
Poisson's Ratio | 0.29 | |
0.28 |
Shear Modulus, GPa | 74 | |
77 |
Shear Strength, MPa | 310 | |
340 |
Tensile Strength: Ultimate (UTS), MPa | 500 | |
520 |
Tensile Strength: Yield (Proof), MPa | 230 | |
200 |
Thermal Properties
Latent Heat of Fusion, J/g | 260 | |
300 |
Maximum Temperature: Mechanical, °C | 480 | |
1100 |
Melting Completion (Liquidus), °C | 1470 | |
1400 |
Melting Onset (Solidus), °C | 1430 | |
1350 |
Specific Heat Capacity, J/kg-K | 470 | |
480 |
Thermal Conductivity, W/m-K | 41 | |
12 |
Thermal Expansion, µm/m-K | 13 | |
14 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 7.6 | |
1.7 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 | |
1.9 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 4.1 | |
30 |
Density, g/cm3 | 7.9 | |
8.0 |
Embodied Carbon, kg CO2/kg material | 1.8 | |
5.3 |
Embodied Energy, MJ/kg | 23 | |
76 |
Embodied Water, L/kg | 62 | |
200 |
Common Calculations
PREN (Pitting Resistance) | 6.4 | |
21 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 84 | |
140 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 | |
100 |
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 18 | |
18 |
Strength to Weight: Bending, points | 18 | |
18 |
Thermal Diffusivity, mm2/s | 11 | |
3.0 |
Thermal Shock Resistance, points | 14 | |
13 |
Alloy Composition
Aluminum (Al), % | 0 | |
0.15 to 0.6 |
Carbon (C), % | 0 to 0.1 | |
0.050 to 0.1 |
Chromium (Cr), % | 2.8 to 3.3 | |
19 to 23 |
Copper (Cu), % | 0 | |
0 to 0.75 |
Iron (Fe), % | 94.4 to 96.1 | |
39.5 to 50.7 |
Manganese (Mn), % | 0.3 to 0.6 | |
0 to 1.5 |
Molybdenum (Mo), % | 0.9 to 1.1 | |
0 |
Nickel (Ni), % | 0 | |
30 to 35 |
Phosphorus (P), % | 0 to 0.025 | |
0 to 0.045 |
Silicon (Si), % | 0 to 0.5 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.025 | |
0 to 0.015 |
Titanium (Ti), % | 0 | |
0.15 to 0.6 |