Honed Tube

Material:  CK45, SAE1045, SAE4140, SAE4340, SAE4145,SAE1518, JIS45C, 40Cr, 20MnV6, 42CrMo, SS431, SS430, Stainless Steel 304/316/2205, etc.

Heat treatment Type:1) Normal no heat  2)Q+T(Quenched+Tempered) 3)Induction Hardened

Diameter: Φ 6-800mm

Length: Max.20 meters

Salt Spray Test：Passed As Per Request

Chrome layer: min 20/25/30/50 Micron or customized

Straightness: <= 0.5/1000

Roughness: Ra <= 0.4u

Hardness of the chrome layer:850 HV (min) – 1150 HV

Diameter tolerance: ISO f7/f8/f9/h8/h9 or as request

Protection: Anti-rust oil outside with hard board sleeve protection.

Packing: Wooden case

Delivery Condition

Hard Chrome Piston Rod ( HRC 15-20)
Quenched & Tempered (Q+T) Rod (HRC 28-32)
Induction Hardened Rod (HRC 55-62)
Q+T Induction Hardened Rod (HRC 60-65)

WE CAN SUPPLY PART WITH FOLLOW TEST REPORTS 

1) Chemical composition report
2) Key dimension checking record report
3) Full dimension report
4) Metallographic structure report
5) Tensile strength report
6) Third-party test report(If need)

WE ALSO PRODUCE:

Honed Tube

Ready To Honed Tube

Hydraulic Cylinder Barrel

Hollow Chrome Bar/ Hard Chrome Shaft

Induction Hardened Chrome Bar

Hydraulic Cylinder 

The various types of chrome rods/bars we have in stocks are standard hard chrome rods and induction hardened chromed rods . Other types of rods such as nickel chrome rod and 42CrMo4 chrome rods are also available on request. honed tube and chrome plated tube are also supplied by us

• 1.Extensive production experience: we Jiangsu Yingnaisi  have more than 20 years manufacturing experience for honed tube and chrome plated rod, in Australia, Thailand, Brazil, India, Iran, Indonesia, South Africa and other countries have long-term buyers.
• 2.Advanced production equipment: cold drawing machine, honing machine, skiving & roller burnishing machine, straightening machine, polishing machine, heat treatment furnace, grinding machine, etc. We have professional technicians do regular scheduled maintenance on these machines to guarantee them work well.
• 3.High quality raw material: our raw material mainly from some famous steel mills, such as TPCO, BAO STEEL, SHA STEEL, which are best and largest raw material manufacturer in China.
• 4.High precision: Honed Tube, inside surface roughness 02-0.4 um, straightness max 0.5/1000, strict tolerance DIN2391 H8. Skived & Roller Burnished Tube, inside surface roughness under 0.2 um, straightness max 0.2/1000, strict tolerance DIN2391 H8. Chrome Plated Rod, chrome layer 10 micron to 100 micron, strict tolerance ISO f7.
• 5.Strict quality control: we have professional in-house QC to inspect all products. We will do Chemical Composition Test, Mechanical Property Test, Dimension Inspect, Roughness Test, Chrome Layer Test and other tests in need before delivery.
• 6.Safe packing: an-rust oil on tubes and rods before delivery. Plastic caps on both ends to protect tube inside surface. Then be packed with seaworthy package or in wooden case.