This item is crafted by Miners with a skill level of 65. Smelting Tin stops giving skillups to Mining at 75.
The miner must be at a forge to smelt the ore into bars.
As an ingredient
The only known use for Tin Bars as an ingredient is in the production of Bronze Bars.
As a quest objective
During the Opening of the Gates of Ahn'Qiraj event Tin bars were required for the following quests as part of the war effort:
- Patch 6.0.2 (2014-10-14): Stacks to 200, up from 20.