Q235 carbon steel pipe can make bolts, nuts, pins, hooks and less important mechanical parts, as well as rebar, section steel, rebar, etc. in building structures.

08F carbon steel pipe, low mass fraction of carbon, good plasticity, low strength, used for stamping parts such as automobiles and instrument shells.

#20 carbon steel pipe, Good plasticity and weldability, used for parts and carburized parts with low strength requirements, such as hoods, welding containers, small shafts, nuts, washers and carburized gears.

#45, 40Mn carbon steel pipe, after tempering and tempering, has good comprehensive mechanical properties, and is used for mechanical parts with large forces, such as gears, connecting rods, machine tool spindles, etc.

#60, 65Mn carbon steel pipe has high strength; Used in the manufacture of various springs, wheel flanges, low-speed wheels.

T7, T8 carbon steel pipe: Make parts that withstand certain impacts and require toughness. Such as sledgehammers, punches, chisels, woodworking tools, scissors.

T9, T10, T11 carbon steel pipe: Manufacture tools with low impact and high hardness and high wear resistance. Such as taps, small drills, dies, hand saw blades.

T12, T13 carbon steel pipe: Make tools that are not affected by impact. Such as files, scrapers, razors, measuring tools.