LEVELS 29-40 IRON Items. In this level bracket, you must create the highest quality iron products from iron bars that you can make - similar to RS gold Iron Platebodies. The process of advancing to 40 levels should take about an hour, with about 1000 bars of input. The best location to start is in the western part of Varrock therefore start making the pieces you need of Armour there.
LEVELS 39 99 GOLD BARS BLAST FRUNCACE. The highest rate of experience you can get are by melting gold bars at levels 40 in the Blast Furnace minigame where you can melt gold bars, which is why many players are taking this route. Utilizing Goldsmithing Gauntlets during this training technique is essential since it significantly improves experience rates and gp per hour.
In the beginning, switch your worlds to officially Blast Furnace worlds. If you're below the level 60, make sure you bring some gold coins since you'll need to pay the Blast Furnace Foreman every now and then to time. Also, you will require stamina pills as cheap OSRS gold you'll be exhausted after a several minutes. This method provides amazing experience rates , especially at lower smithing levels, but it is extremely expensive. The process of leveling from 40 to 99 will take about 65mil (after selling the bars).