Copper Bar

A Copper Bar is a solid bar of copper metal crafted by Miners. It is used in blacksmithing plans, engineering schematics, jewelcrafting designs, and in the creation of Bronze Bars.

Source
This item is crafted by Miners with a skill level of 1. The miner must be at a forge to smelt the metal into bars. Smelting Copper stops giving skillups to Mining at 65.

As an ingredient
Copper Bar is used in the following recipes:

Smelting

 * Smelt Bronze

Engineering

 * Arclight Spanner
 * Copper Modulator
 * Copper Tube
 * Handful of Copper Bolts
 * Large Copper Bomb
 * Mechanical Squirrel Box
 * Rough Copper Bomb

Jewelcrafting

 * Delicate Copper Wire
 * Heavy Copper Ring
 * Inlaid Malachite Ring
 * Inlaid Malachite Ring
 * Simple Pearl Ring
 * Woven Copper Ring

Leatherworking

 * Winter Boots