4140 honed cylinder tubes | 4140 hydraulic cylinder barrel

Hydraulic Cylinder Barrel, Honed Cylinder Tube

Product Overview – 4140 honed cylinder tubes:

  • Product Name:

4140 Hydraulic Cylinder Barrel

This product is widely used to manufacturer hydraulic cylinders or repair cylinders, as the hydraulic cylinder barrel is usually made of seamless cold drawn steel tubes with inner diameter honing, so it is also well known as honed tube.

  • Place of Origin:

Wuxi, China

  • Brand:


  • Certificate:


As one of the leading hydraulic cylinder barrel manufacturers and suppliers, Guangxi has been supplying and exporting honed hydraulic cylinder barrels for nearly 30 years. 

Product Descriptions: 4140 hydraulic cylinder barrel:

  • Material: SAE4140/AISI4140/42CRMO4/SCM440
  • Delivery Condition: BK, BK+S, GBK, NBK
  • ID Size : 32mm – 800mm
  • Length: max 16m
  • Type: Seamless, Hot Rolled, Cold Rolled, Cold Drawn
  • Straightness: ≤ 0.5/1000
  • Roughness: 0.2-0.4 u
  • Tolerance EXT: DIN2391, EN10305, GB/T 1619
  • Tolerance INT: H7, H8, H9
  • Protection: Anti-rust oil on inside and outside surface, plastic caps in both ends.
  • Packing: Bundle with steel strip and PE sheet or wooden case

What is 4140 steel?

Steel 4140 is AISI standard grade, it is a kind of alloy structural steel that is made up of chromium, molybdenum, and manganese, along with small amounts of other elements. This steel grade is equivalent to China standard GB 42CrMo.

SAE 4140 is known for its high strength, toughness, and wear resistance, making it a popular choice for applications in the aerospace, oil and gas, and automotive industries. It can be heat treated to achieve a wide range of mechanical properties and can be used for components such as gears, crankshafts, and drilling components. 4140 steel is also used in the manufacture of tool steel and high-strength structural steel products. It is used to manufacture high-strength parts and parts with large cross-sections and other stress-bearing components under impact load. Such as high strength Hydraulic cylinder tubes or rods, pneumatic cylinder tubes /rods, the transmission eccentric shaft of the horizontal forging machine, the crankshaft of the forging press, etc.

Here below is the material specifications of steel grade SAE 4140.

In addition to 4140 honed cylinder barrel tubes, we also produce 4140 chrome plated bar, this product is the chrome rod for hydraulic cylinders made of steel SAE 4140, which is mostly used to produce hydraulic piston rods.

Scroll to Top