What makes aluminum alloys essential in engineering? Their thermal conductivity and expansion rates play a critical role in various applications, from electronics to aerospace. This article explores the specific properties of different aluminum alloys, providing key insights into how they respond to heat. By understanding these characteristics, engineers can make informed decisions for their projects, ensuring optimal performance and durability.
| Grade | Heat Treatment Method | Coefficient of Thermal Expansion | Thermal Conductivity |
| 1060 | O | 23.6 | 234 |
| H18 | 230 | ||
| 1100 | O | 23.6 | 222 |
| H18 | 218 | ||
| 1350 | All | 23.75 | 234 |
| 2011 | T3 | 22.9 | 151 |
| T8 | 172 | ||
| 2014 | O | 23 | 193 |
| T4 | 134 | ||
| T6 | 154 | ||
| 2017 | OH | 23.6 | 193 |
| T4 | 134 | ||
| 2018 | T61 | 22.3 | 154 |
| 2024 | O | 23.2 | 193 |
| T3,T4,T361 | 121 | ||
| T6,T81,T861 | 151 | ||
| 2025 | T6 | 22.7 | 154 |
| 2036 | T4 | 23.4 | 159 |
| 2117 | T4 | 23.75 | 154 |
| 2124 | T851 | 22.9 | 152 |
| 2218 | T72 | 22.3 | 154 |
| 2219 | O | 22.3 | 172 |
| T31,T37 | 112 | ||
| T6,T81,T87 | 121 | ||
| 2618 | T6 | 22.3 | 147 |
| 3003 | O | 23.2 | 193 |
| H12 | 163 | ||
| H14 | 159 | ||
| H18 | 154 | ||
| 3004 | All | 23.9 | 163 |
| 3105 | All | 23.6 | 172 |
| 4032 | O | 19.4 | 154 |
| T6 | 138 | ||
| 4043 | O | 22.1 | 163 |
| 4045 | All | 21.05 | 172 |
| 4343 | All | 21.6 | 180 |
| 5050 | All | 23.75 | 200 |
| 5005 | All | 23.75 | 193 |
| 5052 | All | 23.75 | 138 |
| 5056 | O | 24.1 | 117 |
| H38 | 108 | ||
| 5083 | O | 23.75 | 117 |
| 5086 | All | 23.75 | 125 |
| 5154 | All | 23.9 | 125 |
| 5252 | All | 23.75 | 138 |
| 5254 | All | 23.9 | 125 |
| 5356 | O | 24.1 | 117 |
| 5454 | O | 23.6 | 134 |
| H38 | 134 | ||
| 5456 | O | 23.9 | 117 |
| 5457 | All | 23.75 | 176 |
| 5652 | All | 23.75 | 138 |
| 5657 | All | 23.75 | 205 |
| 6005 | T1 | 23.4 | 180 |
| T5 | 190 | ||
| 6053 | O | 23 | 172 |
| T4 | 154 | ||
| T6 | 163 | ||
| 6061 | O | 23.6 | 180 |
| T4 | 154 | ||
| T6 | 167 | ||
| 6063 | O | 23.4 | 218 |
| T1 | 193 | ||
| T5 | 209 | ||
| T6,T83 | 200 | ||
| 6066 | O | 23.2 | 154 |
| T6 | 147 | ||
| 6070 | T6 | – | 172 |
| 6101 | T6 | 23.4 | 218 |
| T61 | 222 | ||
| T63 | 218 | ||
| T64 | 226 | ||
| T65 | 218 | ||
| 6105 | T1 | 23.4 | 176 |
| T5 | 193 | ||
| 6151 | O | 23.2 | 205 |
| T4 | 163 | ||
| T6 | 172 | ||
| 6201 | T81 | 23.4 | 205 |
| 6253 | – | – | |
| 6262 | T9 | 23.4 | 172 |
| 6351 | T6 | 23.4 | 176 |
| 6463 | T1 | 23.4 | 193 |
| T5 | 209 | ||
| T6 | 200 | ||
| 6951 | O | 23.4 | 213 |
| T6 | 198 | ||
| 7049 | T73 | 23.4 | 154 |
| 7050 | T74 | 24.1 | 157 |
| 7072 | O | 23.6 | 222 |
| 7075 | T6 | 23.6 | 130 |
| 7175 | T74 | 23.4 | 156 |
| 7178 | T6 | 23.4 | 125 |
| 7475 | T61,T651 | 23.2 | 138 |
| T76,T761 | 147 | ||
| T7351 | 163 | ||
| 8017 | H12,H22 | 23.6 | – |
| H212 | – | ||
| 8030 | H221 | 23.6 | 230 |
| 8176 | H24 | 23.6 | 230 |
As the founder of MachineMFG, I have dedicated over a decade of my career to the metalworking industry. My extensive experience has allowed me to become an expert in the fields of sheet metal fabrication, machining, mechanical engineering, and machine tools for metals. I am constantly thinking, reading, and writing about these subjects, constantly striving to stay at the forefront of my field. Let my knowledge and expertise be an asset to your business.
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