Seamless Pipe
Product Description
Seamless pipe is made from a round steel billet (solid cylindrical
hunk of steel that is cast from raw steel). This billet is then
heated, stretched out, and pushed or pulled over a form. It is then
pierced through the center with a die and mandrel which increases
the inside diameter and reduces the outside diameter. Even though
seamless pipes are manufactured in a variety of sizes, with an
increase in pipe diameter the production cost increases. The name
seamless comes from its absence of a seam. Seamless pipes are
widely used in process piping, power piping, shipbuilding, pressure
vessel, construction, and chemical industries.Seamless pipe, as the
name suggests, is a pipe without aseam or a weld -joint. Seamless
Steel Pipe is made from asolid round steel "billet’ which is heated
and pushed orpulled over a form until the steel is shaped into a
hollowpipe. The hollow pipe is then extruded through a die
andmandrel combination to reduce the outside diameter and toexpand
the inside diameter.Seamless pipe is a tubular section or hollow
cylinder,usually but not necessarily of circular cross-section,
used mainly to convey substances can flow-liquids and
gases(fluids),slurries,powders and masses of small solids.
Seamless tubes are typically more light weight, and have thinner
walls. They are used for bicycles and transporting liquids.
Certainpipe characteristics can be controlled during production For
example, the diameter of the pipe is often modified depending how
itwill be used. The diameter can range from tiny pipes used to make
hypodermic needes, to large pipes used to transport gasthroughout a
city. The wall thickness of the pipe can also be controlled Often
the type of steel will also have an impact on pipe'sstrength and
flexibility, Other controllable characteristics include leneth
coatine material and end finish.
Characteristics/Features
1. Seamless pipe is thought to be able to withstand higher
pressure, higher temperatures, higher mechanical stress and
acorrosive atmosphere.
2. Hollow pipe is far stiffer per unit weight than solid members.
3. High precision can do small batch production.
4. Smaller diameter.
5. Weldability strong, high compression capability
6. Steel pipe superior perfomance, relatively dense metal
7. Steel Cross area is more complex
8. High precision cold drawn products, good surface quality.
9. The thicker the wall thickness of the solution, it is really
more cost effective and wise, the thinner the wall thickness, and
its
processing costs ill appreciate sharply.
10. From the process of the product determines its limitations,
from the general seamless steel pipe with low accuracy:
wallthickness uneven, low brightnes tube appearance, fixed length
of high cost, and piting in the appearance of black spots
isdifficult to bring go;
11. Seamless steel pipe pressure and hydrostatic test is for
pressure tube by into the hydrostatic test, which do not maintain
theprescribed pressure value not less than 5 seconds, not to
discose, the regular supply hydraulic pressure test is
2.45MPapressure The pressure test is P= 0 5MPa.
12.The corrosion test: industrial corrosion -resistant steel pipe
according to standard regulations or agreement between thecorrosion
of steel pipe corrosion resistance test, no intergranular
corrosion.13. Seamless Pipes can be cold-drawn or hot rolled.
Cold-drawn special-section seamless pipes are widely applied in
theindustries of petrochemical, boiler, automobile, mechanical,
construction.
Advantages of Seamless Pipe
1. lncreased Pressure Ratings. Welded seam of steel pipe is the
weakest link However, since the seamless steel pipe has notbeen
welded, it does not have seams, making it equally strong around the
entire circumference of the pipe.2. Uniformity of Shape
particularly on heavy wall sections and a lack of weld seams and
increased structural integrity
3. Strength Under Loads
4. There is greater ability to use multi -hole dies for diameter
sizes that are smaller. This will decrease cost and
increaseproductivity, There's also better control of wall
thickness.
Applications of Seamless Pipe
Gas oil, Petroleum industry, Chemical industry, Onshore oil fields,
Offshore oil fields, Electric Power, Liquefied natural gas,
Compressed Natural gas, City gas, Shipbuilding industry,
Pharmaceutical Project, Food industry, Chemical fertilizer. Textile
& Chemical Fiber. Paper- making industry. Building. Food industry
etc.
Process of SS316 304 Seamless well casing satinless steel pipes
line
Specifications
Item |
304 304L 316L 316 Stainless Steel Tube/TP316L Seamless Stainless
Steel Pipe
|
Standard | ASTM A213, A312, ASTM A269,ASTM A778, ASTM A789, DIN 17456,DIN
17457,DIN 17459, JIS G3459, JIS G3463, GOS T9941, EN 10216, BS3605, GB13296,etc. |
Material |
201,202,301,304,304L,304N,XM21,304LN,309S,310S,316,316Ti,316L,316N,316LN,317,317L,321,329,etc.
|
Specifications | Wall thickness | 1.0-150mm(SCH10S-XXS) |
| Outside diameter | 3.0-2500mm(1/8"-100") |
| Length | 6m,5.8m,8m,11.8m,12m or as required. |
Surface | Pickling, annealing, polishing, bright, sand blast, hair line, etc. |
| Price Term | Ex-work, FOB, CFR, CIF, or as required. |
| Payment Term | T/T, L/C, Western Union. |
Export to | Singapore, Canada, Indonesia, Korea, USA, UK, Thailand, Saudi Arabia, Vietnam, Iran, India, Peru, Ukraine ,Brazil, South Africa, etc. |
| MOQ | 500kg |
| Delivery Time | Prompt delivery or according to order's quantity. |
| Package | Export standard package: bundled wooden box, suit for all kinds of
transport, or be required. |
Application | widely used in petroleum, chemical, medical, food, light industry,
machinery, instrument and other industrial pipeline and mechanical structure
parts, etc.
|
| Contact | If you have any question, please feel free to contact me. |
More Details
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