2024 Sept. We have developed domestically advanced lead bath quenched and heat-treated steel strips with a width exceeding 600mm
Steel grade :75Cr1 80CrV2 high carbon lower bainite steel strips mainly used for circular saw blade.
Carbon steel can be divided into low carbon steel, medium carbon steel, and high carbon steel according to its chemical composition (i.e. carbon content, cold rolled steel strip, hot rolled steel coil)
⑴ Low carbon steel refers to carbon steel with a carbon content of less than 0.25%. Low carbon steel is easy to accept various processing such as forging, welding, and cutting, and is commonly used in the manufacture of chains, rivets, bolts, shafts, etc.
⑵ Medium alloy steel refers to carbon steel with a carbon content of 0.25% to 0.60%. There are various products such as killed steel, semi killed steel, boiling steel, etc. In addition to carbon, it may also contain a small amount of manganese (0.70% to 1.20%). According to product quality, it is divided into ordinary carbon structural steel and high-quality carbon structural steel. Good thermal processing and cutting performance, but poor welding performance. Strength and hardness are higher than low carbon steel, while plasticity and toughness are lower than low carbon steel. Hot rolled and cold drawn materials can be used directly without heat treatment, or they can be used after heat treatment. The quenched and tempered medium carbon steel has good comprehensive mechanical properties. The highest achievable hardness is approximately HRC55.
High carbon steel refers to carbon steel with a carbon content greater than 0.6%, commonly known as tool steel, which can be quenched and tempered. Hammer, pry bar, etc. are made of steel with a carbon content of 0.75%; Cutting tools such as drill bits, wire taps, reamers, etc. are made of steel with a carbon content of 0.90% to 1.00%.
