High Precision Hydraulic Cylinder Seamless Tube

• Material: China 20 Steel, St52, E355+Bks
• Usage: Hydraulic Cylidner
• Structure: General Cylinder
• Power: Hydraulic
• Standard: Stnadard and Nonstandard
• Pressure Direction: Double-Acting and single-Acting
• Model NO.: seamless honed Tubes
• Double-Acting Cylinder Type: Common Cylinder
• Special Cylinder Type: Number of Cylinders
• Combination Cylinder Type: Pressurized Cylinder
• Surface Treatment: Anti-Rust Oil
• Machining Way: Honing and Hobbing
• Length: 2-9m as Per Pipe Diameter
• Production Lead Time: 30days After Order Confirmed
• Surface Roughness: Ra0.2-0.4
• Inner Tolerance: H8-H9
• Supply Goods Condition: Cold-Drawn, Cold-Rolling, Honed, Skived
• Wall Thickness: 3-50mm
• Cylinder Diameter: 30-500mm
• Other Material: C45, 16mn, 25mn and etc.
• Transport Package: Steel Belt and Stretch Film
• Specification: As per customer required
• Trademark: Seamless Honed tubes
• Origin: China
• HS Code: 73043190
• Production Capacity: 2000tons/Month

Product Description

We are reliable:
Raw material is mainly from some famous refinery steel mills, such as BAO STEEL, Tianjin, and Chengdu etc, which are the best and largest raw material manufacturers in China.
We have experienced technicians and skilled workers and provide you with high quality and efficient products.
We have advanced equipments: Cold drawing machine, honing machine, skiving&roller burnishing machine, centerless griding machine, straightening machine, polishing machine, etc.
Delivery on time and best after-sale service.

Honed Tube
Chrome Plated Honed Tube
Internal honed with external hard chrome plated tube
Internal honed and hard chrome plated tube
Skived & Roller Burnished Tube

Honed Tube for Hydraulic Cylinder

1. Steel grade: ST52, CK45, 20#, 45#, 4140, 16Mn, 42CrMo, Q345B, Q345D, Stainless Steel 304/316, Duplex 2205, Alloy Steel etc.
2. ID: 20mm-1500mm
3. Length: Max 13m
4. Straightness: 0.5/1000
5. Roughness(Ra): 0.2-0.4u
6. Tolerance EXT: DIN2391
7. Tolerance INT: ISO H8
8. Type: Seamless, cold drawing, cold rolling, honed
9. Conservation: Anti rust oiled inside and outside surface, plastic caps in both ends.
10. Package: Bundle with steel strip and knitting strip, or wooden case.

Inner Dia (mm)	ID Tolerance (mm)					WT Tolerance (mm)
	H7	H8	H9	H10	H11
30	+0.021/0	+0.038/0	+0.052/0	+0.084/0	+0.130/0	±5-10%
>30-50	+0.025/0	+0.039/0	+0.062/0	+0.100/0	+0.160/0
>50-80	+0.030/0	+0.046/0	+0.074/0	+0.120/0	+0.190/0
>80-120	+0.035/0	+0.054/0	+0.087/0	+0.140/0	+0.220/0
>120-180	+0.040/0	+0.063/0	+0.100/0	+0.160/0	+0.250/0
>180-250	+0.046/0	+0.072/0	+0.115/0	+0.185/0	+0.290/0
>250-315	+0.052/0	+0.081/0	+0.130/0	+0.210/0	+0.320/0
>315-400	+0.057/0	+0.089/0	+0.140/0	+0.230/0	+0.360/0