Introduction

Ever wondered where the metal in your tools, appliances or car parts actually come from? The journey of metal begins deep underground before going through a series of intense processes as it becomes the strong, durable material we rely on today. This blog explores how the mining of raw ore transforms to the metal you can purchase at London Metal Store.

1. Mining the Raw Material

 

Metal starts as an ore.

 

Ores are natural rocks in which contain metal rich mineral. These are extracted from the earth through either open pit or underground, depending on the deposit.

 

• Copper  - Chalcopyrite is the primary ore of copper, it tends to be a reddish brown metal known for its electrical and thermal conductivity.
• Aluminium - Bauxite is a reddish rock rich in aluminium oxide.
• Mild & Stainless Steel - Iron ore is the main source used to create steel. When carbon is added, it becomes mild steel, when chromium and nickel are added, it creates stainless steel.
• Brass - The metal isn't mined as a single ore, it's an alloy from the combination of copper and zinc.

2. Refining and Smelting

 

After the ore is mined, it is crushed and processed to separate the metal from the surrounding rock. Separating the metal from the ore can be done through 2 main processes:

 

• Smelting - Process of heating the ore to a very high temperature to separate the metal from impurities.
• Electrolysis - A chemical process that uses electricity to extract or purify metal. The metal ore or compound is dissolved in a liquid and then subjected to an electric current. 

3. Alloying and Strengthening

Most metals used in industry aren't pure - they're alloys. Manufacturers often combine elements to create metals with specific strengths, weights and corrosion resistance. This avoids metals from being too soft or chemically reactive.

 

Common alloys include:

 

• Mild Steel: Iron and Carbon
• Brass: Copper and Zinc
• Bronze: Copper and Tin

4. Shaping and Forming

 

Once refined, the metal is shaped into different forms:

 

• Rolling - Reduces thickness of the metal.
• Forging - Hammering heated metal into shape.
• Extrusion - Forces metal through a die to create complex cross sections.
• Casting - Pouring of molten metal into a mold to create desired part.

 

These processes all contribute to the final products we stock here at London Metal Store.

5. Finishing and Distribution

 

Before reaching stores, metal often goes through finishing treatments such as:

 

• Heat Treatment - To harden of soften.
• Machining - To cut or drill precise sizes.
• Polishing or Coating - For appearance and protection.

Conclusion

From raw rock to ready to use material, metal goes through an incredible transformation. Understanding how stainless steel, copper, aluminium, brass and mild steel are made helps you choose the right material for your job whether it's construction, repairs or creative group.

Here at London Metal Store we have a full range of aluminium, brass, copper, stainless steel and mild steel cut to size, ready for pickup or delivery.