Hard Chrome Rod for Hydraulic
Professional manufacturer of Hard chrome rod for hydraulic, founded in 2004, major in honed tube, hydraulic tube, chrome rod, chrome bar, chrome shaft, at present we are biggest manufacturer and wholesaler in north of China. Hard chrome rod for hydraulic Hard Chrome Rod Professional manufacturer...
Professional manufacturer of Hard chrome rod for hydraulic, founded in 2004, major in honed tube, hydraulic tube, chrome rod, chrome bar, chrome shaft, at present we are biggest manufacturer and wholesaler in north of China.
Hard chrome rod for hydraulic
Hard Chrome Rod
Professional manufacturer of hard chrome rods and hydraulic barrel (honed tube, skived and roller burnished tubes). We stock a wide range of hard chrome rod and hydraulic barrel (honed tube, skived and roller burnished tube) also for various engineering companies.
The various types of rods/bars we have in stocks are standard hard chrome rods (C45) and induction hardened chromed rods (C45). Other types of rods such as nickel chrome rod and stainless steel 304 or stainless steel 316 chrome rods are also available on request.
Standard Parameters | |
Steel Grade | C45E (EN 10083) |
Tolerance | ISO f7 |
Roundness | diameter tolerance / 2 |
Standard Length | - for Ø ≤ 60 mm: 5600 – 6200 mm |
Surface Roughness | Ra max. 0.20 µm (statistic average: 0.05 – 0.15 µm) |
Chrome Layer Thickness | ≤ Ø20 mm: min. 15 µm |
Chrome Layer Hardness | min. 900 HV(0.1) |
Straightness | ≤ Ø16 mm: max. 0.3 mm : 1000 mm |
Mechanical Properties | according to EN 10083-2 |
Induction Hardened Chromed Rod
Standard Parameters | |
Steel Grade | C45E (EN 10083) |
Tolerance | ISO f7 |
Roundness | diameter tolerance / 2 |
Standard Length | - for Ø ≤ 60 mm: 5600 – 6200 mm |
Surface Roughness | Ra max. 0.20 µm (statistic average: 0.05 – 0.15 µm) |
Surface Hardness | min. 55 HRC |
Hardened Layer Depth | From 0.4 to 3.5 mm |
Chrome Layer Thickness | ≤ Ø20 mm: min. 15 µm |
Chrome Layer Hardness | min. 900 HV(0.1) |
Straightness | ≤ Ø16 mm: max. 0.3 mm : 1000 mm |
Mechanical Properties | according to EN 10083-2 |
Nickel and Hard Chrome Rod
The nickel and chrome plating technology is the solution to extreme environments with intense corosion:
Offshore, marine conditions
Military applications, wind, solar and aerospace sector
Agriculture, mining industry, oil and gas industry
The nickel layer is completely free of cracks, pores and by this, the base material is isolated from the atmospheric corrosion, while the chrome layer ensures a very good wear resistance.
Standard Parameters | |
Steel Grade | C45E, 20MnV6 / 38MnVS6 |
Tolerance | ISO f7 |
Dimension | Ø20 - 160 mm / Ø3/4” – 6” |
Roundness | diameter tolerance / 2 |
Standard Length | Up to 6000 mm |
Surface Roughness | Ra max. 0.20 µm (statistic average: 0.05 – 0.15 µm) |
Nickel Layer Thickness | min. 10 µm |
Chrome Layer Thickness | min. 25 µm |
Nickel Layer Micro Hardness | min. 300 HV(0.1) |
Chrome Layer Micro Hardness | min. 900 HV(0.1) |
Straightness | max. 0.20 mm/1000 mm |
Hydraulic Barrel
Honed Tube / Skived and Roller Burnished Tube
The hydraulic barrel we have in stock is seamless cold drawn tubes (E355/ST52, E235/C20), being honed / skived to achieve the required tolerance and surface roughness. Internal diameter tolerance of the tube up to H8 while the surface roughness is Ra ≤ 0.22 µm
Standard Parameters | |
Steel Grade | E355 (EN 10305-1) / St52-3 (DIN 2391) |
Heat Treatment | +SR (EN 10305-1) / BK+S (DIN 2391) |
Diameter Range (metric) | from OD 48 x ID 40 mm to OD 350 x ID 300mm |
Diameter Range (imperial) | from OD 2" x ID 1½" mm to OD 10" x ID 9" |
Tolerance | ISO H8 |
Standard Length | 5000 - 8000 mm |
Surface Finish (ID) | Ra ≤ 0.22 µm |
Local Deviation | max. 1 mm : 1000 mm |
Total Deviation | - tubes with length ≤ 6 m: max. 3.5mm : length |
Ovality | within the OD dimensional tolerance |
Mechanical Properties | Rm Tensile Strength (N/mm2) : min 580 |
Chemical Composition | C - 0.22 max |
Product Processing
Quality Inspection and Testing
Packing and Delivery
Why Choice Us
1.Professional, rich experience, reliable.
2.One-stop solution for honed tube, chrome rod.
3.Full range of size and material, ready stock goods with fast delivery
4.Customizable, non-standard sizes available
5.Small quantity acceptable
6.Refund or replace if any quality issue.
About Us
Qingzhou Longyue Hydralic Machinery Co., Ltd, was established in 2004, reowned firm engrossed in manufacturing honed tube, chrome rod over 14years. ISO9001 certificated.
Annual output 12 thousand tons, at present we are the biggest manufacturer in North China.
Rich experience in production and export, prefect products & services gained recognition of clients from 20 countries & area.
We sincerely hope there would be a chance for us to start business and build long term relationships may from an inquiry soon.
Products range as following:
Honed tube
Finished barrel for hydraulic cylinder
Ready to honed tube.
Cold drawn tube.
Hard chromed rod, bar, shaft.
Induction hardened rod, bar, shaft
Finished piston rod for hydraulic cylinder
Main market as following.
Domestic market
Middle East
South Eastern Asia
North Africa
South America
