
Production Information :
Steel pipe construction, pipelines and ship building in the North and Baltic Seas present the highest demands on material and weld seams. For these extreme demands of the wind, energy, oil and ship building industries, we stock HF and UP longitudinal welded as well as seamless steel pipe from reputed manufacturers.
Pipe can be delivered from stock according to the following standards and materials:
We stock and supply longitudinal and spirally welded steel pipes for many different areas of application and segments in standard or commercially available lengths according to your requirements.
■ Pipes for pressure applications
Welded pipes
■ Pipes for steel construction
Welded pipes according to EN 10219-1 and 2 in materials S 235 JRH,
S 275 JOH, S 355 JOH
and S 355 J2H
■ Pipes for water transport
Welded pipes according to EN 10224 (DIN 2460)
■ Pipes for flammable media
Welded pipes according to EN 10208 (DIN 2470)
EGYEDI MÉRETŰ CSŐGYÁRTÁS
Lehetőség van speciális, nem szabvány szerinti méretű csövek
gyártására, ennek minimum mennyisége mindig a
gyártandó mérettől függ.
Gyártási lehetőségek préseléses technikával (hosszhegesztett cső):
Ø 406,4- 2000 mm átmérőig, hossz: 2000-15100
mm, falvastagság: 8-101 mm
Gyártási lehetőségek hengereléses technológiával (hosszhegesztett
cső) Ø 1000-4500 mm, hossz: 1000-3500 mm, falvastagság:
10-130 mm
Egyedi (mag) lyukasztásos technológiával készített honolt és
honolásra alkalmas hidraulikus, varratnélküli és hegesztett
csövek 1600 mm átmérőig, 22 méteres hosszig különösen alkalmas
energia, olaj és gáz, gépipari, vízgépészeti,
anyagmozgatási célokra.
The advantage of steel tubes for precision applications is the high precision of their manufacturing, the good quality of their surface, and the guaranteed mechanical and technological properties. That is why the pipes are widely used in the machining industry and in the automotive industry. Welded pipes for precision applications are manufactured in the process of cold drawing.
PN-EN10305-2 Delivery condition
Designation | Symbol | Description |
Cold drawn / hard | +C | Without thermal processing, after the process of cold drawing is finished |
Cold drawn / soft | +LC | After final thermal processing, appropriate drawing |
Cold drawn and annealed | +SR | After the final cold drawing process and annealing thermal processing in a controlled atmosphere |
Annealed | +A | After the final cold drawing process, the pipes are annealed in a controlled atmosphere |
Normalized | +N | After the final cold drawing process, the pipes are normalized in a controlled atmosphere |
Mechanical properties in room temperature
Steel grade | Maximum values depending on the delivery condition | |||||||||||
+C | +LC | +SR | +A | +N | ||||||||
Steel symbol | RmMPa | A % | RmMPa | A % | RmMPa | ReHMpa | A % | RmMPa | A % | Rm MPa | ReHMpa | A % |
E155 | 400 | 6 | 350 | 10 | 350 | 245 | 18 | 260 | 28 | 270 do 410 | 155 | 28 |
E195 | 420 | 6 | 370 | 10 | 370 | 260 | 18 | 290 | 28 | 300 do 440 | 195 | 28 |
E235 | 490 | 6 | 440 | 10 | 440 | 325 | 14 | 315 | 25 | 340 do 480 | 235 | 25 |
E275 | 560 | 5 | 510 | 8 | 510 | 375 | 12 | 390 | 21 | 510 do 550 | 275 | 21 |
E355 | 640 | 4 | 590 | 6 | 590 | 435 | 10 | 450 | 22 | 490 do 630 | 355 | 22 |
Chemical composition (ladle analysis)
Steel grade | % of the mass | ||||
Steel symbol | C max | Si max | Mn max | P max | S max |
E155 | 0,11 | 0,35 | 0,70 | 0,025 | 0,025 |
E195 | 0,15 | 0,35 | 0,70 | 0,025 | 0,025 |
E235 | 0,17 | 0,35 | 1,20 | 0,025 | 0,025 |
E275 | 0,21 | 0,35 | 1,40 | 0,025 | 0,025 |
E355 | 0,22 | 0,35 | 1,60 | 0,025 | 0,025 |
Inspection and test list
Inspection or test type | Test frequency | ||
Internal tests | Acceptance test | ||
Mandatory | Chemical analysis | M | M |
Tensile testing | M | One per tested batch | |
Dimension verification | M | M | |
Visual inspection | M | M | |
Optional | Flattening test or expansion test (option 18) | M | One per tested batch |
Roughness testing | Not applicable | One per tested batch | |
NDT of the weld in order to identify any longitudinal discontinuities | Not applicable | Individual | |
NDT in order to detect any leaks |
PN-EN 10305-2 Cold drawn steel tubes for precision applications Pictures
Double-submerged arc welded (DSAW) large diameter straight seam and spiral pipe for oil and gas transmission is available with external fusion bonded epoxy and abrasion-resistant overlay coatings, as well as internal epoxy coating.
BEST PIPELINE EQUIPMENT CO.,LTD
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in
the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties
for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.
The Company was founded in 1996 on the buttwelding fittings , forged flanges and steel pipes
with the aim of becoming a one-stop solution partner for their clients.
Best Alloy Engineering Alloy Pipe is one group company !
The company ’s business model is characterized by complete control of the supply chain, with
integrated production, stock and distribution operations. A strong market image reinforced by
genuine trust has enabled very rapid growth in all areas of the world.
It fixes assets of 8 million dollar, covers an area of 60,000 square meters.
In Best Alloy Pipe Engineering , there are more than 150 employees
with strong technical faculty in our company ,including 15 engineers, and 16 technicians.
Owning advanced flanges and tube supporting the production lines, the company has high technology skills in
forge and press, If push system, machining, cold forming, hot extrusion and heat treatment .
In addition, our factory also has the capabilities of chemical analysis, metallurgical analysis,
physical experiment, nondestructive testing and other advanced detection. Therefore, Best
Pipeline could produce different ranges of stainless steel, alloy steel, carbon steel flanges,
elbows, tees, reducers, caps, big bend, the socket series of pipeline components with high and
medium pressure, and various specifications, material steel pipe according to international and
domestic standards.
Best Alloy Pipe has a manufacturing license in
the field of
the petroleum, petrochemical, chemical, shipbuilding and other industries. The products have been widely used
in marine, power generation, natural gas, chemicals, chemical, petroleum, pharmaceutical, coal, aviation,
construction, water supply and many other fields.
In 2003, the company has provided a lot of well-known foreign trade enterprises to the domestic
OEM products, and several foreign guests of audits and visits, which makes the company win the
domestic and foreign customers trust and praise. Along with the company's expansion command,
it has obtain the right to import and export goods in 2004, developing a direct business dealings
with Germany , Poland , Belgium , the United States, Russia, Australia, Brazil, Iran, Dubai, Paraguay,
Chile, Argentina, and more than 40 other countries. Now Best Pipeline has grown into a star company
gathered production, manufacturing, domestic and foreign sales of other diversified businesses.
Best Pipeline uses high-quality products and good service to
establish a good corporation image
and good reputation, using a reasonable price to win customers’ trust and occupy the market.
The company will always insist on putting science and technology in the first and make every
effort to develop new product as customers’ requirements.
The company will always pursuit excellence along with the brilliant corporation spirit, and always
adhere to the purpose of "Quality first, Customer satisfaction", to provide customers with qualified
products and good service