20# Steel Precision Honed Tube is a high-quality cold drawn seamless steel tube that undergoes a specialized finishing process known as honing. The "20#" designation refers to a Chinese standard (GB/T 699) for high-quality carbon structural steel, which is approximately equivalent to ASTM A513 Type 5 or SAE 1020 steel. This combination of material and precision manufacturing results in a product renowned for its excellent mechanical properties, tight dimensional accuracy, and superior internal surface finish.

A 45# honed tube is a high-precision, cold-drawn seamless steel tube manufactured from 45# grade carbon steel (AISI 1045) and subsequently finished with an internal honing process. This specialized manufacturing sequence transforms a standard seamless tube into a critical component designed for applications demanding exceptional dimensional accuracy, superior surface finish, and outstanding mechanical properties. Primarily serving as the cylinder barrel in hydraulic and pneumatic systems, the 45# honed tube is the foundation upon which reliable, efficient, and long-lasting linear actuators are built.

The 42CrMo Honed Tube represents a pinnacle of precision manufacturing in the realm of seamless steel tubing. Engineered for superior performance in high-stress, high-precision environments, these tubes are the preferred choice for industries where reliability, durability, and exacting dimensional accuracy are non-negotiable.