The leading social network is Facebook with 2.7 billion active users.
In second place is YouTube (2 billion) followed by Instagram (1.15 billion), LinkedIn (766 million), TikTok (689 million), Twitter (330 million), and Snapchat (294 million).
China is the world's largest producer of steel. The country accounts for 57% of the world's production.
The European Union is the second largest producer and India is the third largest producer. Other major global steel producers are: Japan, USA, Russia, South Korea and Turkey.
Most types of steel melt between 1370°C (2500°F) and 1500°C (2732°F).
The melting temperature depends on its composition. In general, high-alloyed steels containing more alloying elements have higher melting points than low-alloyed steels.