Cold rolled steel strip is made of hot rolled coil and it is rolled below recrystallization temperature at room tem- perature, including plate and coil. The steel strip with long length and delivered in coils is called steel strip
Carbon steel sheet is an iron carbon alloy with carbon content of 0.021 8% ~ 2.11%. Generally, it also contains a small amount of silicon, manganese, sulfur and phosphorus.
Durable - carbon steel is very strong and shock resisntant. Safety-green carbon steel is easy ro recycle, mak- ing it environment-friendly. Economy-carbon steel is cheaper than copper pipe.
Mild carbon steel is generally used in oil pipelines. Medium carbon steel fluid transportation and mechanical manufacturing can involved. High carbon steel is usually applied in machining.