Unfortunately, there’s no single answer to "poe 6 link chance" as it depends on a few factors:
Method:
Orbs of Fusing: The most common method, but also the most RNG-dependent. The average chance of 6-linking with fusings is estimated to be around 0.1%, or 1 in 1000 attempts. However, this average doesn’t guarantee anything, and your actual chance can vary significantly. Some get lucky in just a few fusings, while others spend thousands without success.
Crafting Bench Recipe: Guarantees a 6-link for 1500 Orbs of Fusing, eliminating the randomness but costing significantly more than the average fusing usage.
Divination Cards: Some specific cards offer 6-linked items as guaranteed rewards. They eliminate randomness but have varying rarities and acquisition methods.
Corrupted Items: Certain "corruption" mechanics like Vaal Orb or Temple incur a small chance (around 1 in 160) to roll items with max sockets and links, including 6-links. This is highly risky as the item is also corrupted and permanently modified.
Item Quality:
Higher item quality slightly increases the chance of linking with Orbs of Fusing. For example, 20% quality might increase the chance from 0.1% to 0.12%.
Remember, 6-linking always involves some element of chance, whether using fusings, crafting bench, or other methods. Plan accordingly and consider alternative options based on your risk tolerance and resource availability. Good luck!