hydraulic cylinder for engineering machineries
27SiMn honed tube Carbon steel alloy steel
ASTM A519 cold drawn seamless steel tube
A honing steel, sometimes referred to as sharpening steel, sharpening stick, sharpening rod, butcher's steel, and chef's steel, is a rod of steel, ceramic or diamond-coated steel used to realign blade edges. They are flat, oval, or round in cross-section and up to 1 foot (30 cm) long. The steel and ceramic honing steels may have longitudinal ridges, whereas the diamond-coated steels are smooth but embedded with abrasive diamond particles
Honing steels are used by lightly placing the near edge of the blade against the base of the steel, then sliding the blade away from yourself along the steel while moving it down – the blade moves diagonally, while the steel remains stationary. This should be done with the blade held at an angle to the steel, usually about 20°, and repeating on the opposite side at the same angle. This is repeated five to ten times per side