SAE-AISI 81B45 Steel vs. Grade CW6M Nickel
SAE-AISI 81B45 steel belongs to the iron alloys classification, while grade CW6M nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 81B45 steel and the bottom bar is grade CW6M nickel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
220 |
Elongation at Break, % | 12 to 24 | |
29 |
Fatigue Strength, MPa | 250 to 350 | |
210 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 73 | |
84 |
Tensile Strength: Ultimate (UTS), MPa | 540 to 670 | |
560 |
Tensile Strength: Yield (Proof), MPa | 350 to 560 | |
310 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
330 |
Maximum Temperature: Mechanical, °C | 410 | |
970 |
Melting Completion (Liquidus), °C | 1460 | |
1530 |
Melting Onset (Solidus), °C | 1420 | |
1470 |
Specific Heat Capacity, J/kg-K | 470 | |
430 |
Thermal Expansion, µm/m-K | 12 | |
12 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 2.3 | |
65 |
Density, g/cm3 | 7.8 | |
8.8 |
Embodied Carbon, kg CO2/kg material | 1.5 | |
13 |
Embodied Energy, MJ/kg | 20 | |
170 |
Embodied Water, L/kg | 49 | |
300 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 77 to 110 | |
140 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 320 to 840 | |
220 |
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
23 |
Strength to Weight: Axial, points | 19 to 24 | |
18 |
Strength to Weight: Bending, points | 19 to 22 | |
17 |
Thermal Shock Resistance, points | 17 to 21 | |
16 |
Alloy Composition
Boron (B), % | 0.00050 to 0.0030 | |
0 |
Carbon (C), % | 0.43 to 0.48 | |
0 to 0.070 |
Chromium (Cr), % | 0.35 to 0.55 | |
17 to 20 |
Iron (Fe), % | 97 to 98 | |
0 to 3.0 |
Manganese (Mn), % | 0.75 to 1.0 | |
0 to 1.0 |
Molybdenum (Mo), % | 0.080 to 0.15 | |
17 to 20 |
Nickel (Ni), % | 0.2 to 0.4 | |
54.9 to 66 |
Phosphorus (P), % | 0 to 0.035 | |
0 to 0.040 |
Silicon (Si), % | 0.15 to 0.35 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.040 | |
0 to 0.030 |