seamless hydraulic tube application
Hydraulic seamless tubes are widely used in petrochemical industries, refineries, power industries, chemical industries, aerospace industries, automotive industries, etc. Heat exchanger tubes, hydraulic tubes, boiler tubes, mechanical tubes, finned tubes, etc. required in these industries are hydraulic seamless tubes.
How to make hydraulic tube
The tubes surface finishing is NBK, where the tubes are phosphate and normalized which provides corrosion resistance. It is oiled inside and outside. Normalize process creates tougher metal product. During normalizing, metals will be heated at a high temperature, and it allowed to naturally cool back down to room temperature by exposure after heating. Metals that have been through this process are more formable, harder and ductile.
seamless hydraulic tube chemical composition
| Grade | C | Mn | P | S | Si |
| ASTM A573 Grade 58 | 0.23 | 0.6-0.9 | 0.035 | 0.04 | 0.1-0.35 |
| ASTM A573 Grade 65 | 0.24 | 0.85-1.2 | 0.035 | 0.04 | 0.15-0.4 |
| ASTM A573 Grade 70 | 0.27 | 0.85-1.2 | 0.035 | 0.04 | 0.15-0.4 |
seamless hydraulic tube mechanical property
| Grade | Yield Strength (MPa) | Ultimate Tensile Strength (MPa) | Elongation at Break (%) |
| ASTM A573 Grade 58 | 220 | 415-550 | 21 |
| ASTM A573 Grade 65 | 240 | 415-530 | 20 |
| ASTM A573 Grade 70 | 290 | 485-620 | 28 |
seamless hydraulic tube Specification
Product Name | seamless hydraulic tube |
Specification | ST52,CK45,4140,16Mn,42CrMo,E355,Q345B,Q345D,Stainless Steel 304/316,Duplex2205,Alloy Steel。ASTM A335 / ASME SA335 / ASTM A213 / ASME SA213 etc. |
Technology | Hot Rolled / Cold Drawn |
Outer Diameter Size | A335 - 3/8" NB To 30" NB (Nominal Bore Size), A213 -3/8"OD To 5"OD |
Wall Thickness | Schedule 20 To Schedule XXS (Heavier On Request) Up to 250 mm Thickness |
Length | 5 To 7 Meters, 09 To 13 Meters, Single Random Length, Double Random Length And Customize Size. |
Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API. |
Pipe Ends | Plain Ends / Beveled Ends / Coupling |
Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment |
Delivery Time | Usually within 10-45 days after receipt of advance payment |
production workshop
production workshop
production workshop
production workshop
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Application
Our steel products are mainly used in chemical industry, petrochemical industry, offshore, seawater pipeline, desalination plant, nuclear engineering, paper and pulp industry.
Our export country
We are a well known worldwide supply and export seamless hydraulic tube in following countries：,Italy, Philippines, France，Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.
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