
Production Information : KAZÁNCSÖVEK, HŐCSERÉLŐ CSÖVEK, ÖTVÖZÖTT CSÖVEK
Kazáncsöveinket elsősorban klasszikus kazángyártáshoz valamint
csővezeték építéshez, hőcserélő berendezésekhez,
erőműi berendezésekhez biztosítjuk. Kazáncsöveink hegesztett és
varratnélküli kivitelben is elérhetőek valamint szénacél
és rozsdamentes (koracél) típusban is.
Kazáncsöveknél is lehetőség van EN/Din szabvány mellett akár
amerikai ASTM/ASME szabvány szerinti beszerzésre is,
valamint szinte az összes anyagminőség elérhető. Kazáncsöveinkhez
széles választékban tudunk kínálni csőidomokat
íveket, edényfenekeket, szűkítőket, karimákat. Kérje ajánlatunkat!
Méretválaszték: hosszhegesztett: 21,3-610 mm, varratnélküli:
21,3-812 mm
Szabványok: EN 10217-2, EN 10220, EN 10216-2, DIN 2448/17175, AD
2000 W4/DGRL97/23/EG VdTÜV WB 511/2, AD
2000 W4/TRD 100/102
Minőségek: P235GHTC1/TC2, 16Mo3, 13CrMo4-5, 10CrMo9-10,
X10CrMoVNB9-1, X20crMo V11-1, St35 .8.I., St 35.8.III.,
P195GH, P235GH, P265GH, 14MoV6-3, 10CrMo5-5, 11CrMo9-10, 25CrMo4,
L235/275/355, P215NL, P265NL, P355N,
P460N, P355NH, P355NL1, P460NL1, P275NL2, P355NL2, P460NL2
Hosszak: 4-18 m
WELDED AND SEAMLESS BOILER TUBES, HEAT EXCHANGER TUBES, ALLOYED
TUBES
We supply boiler tubes mainly for classic boiler and heat exchanger
production but also for power plants, line pipes. Our
boiler tubes are available in welded and seamless and also in
carbon and stainless type.
In case of boiler tubes there is a possibility to supply according
to national standards such as ASTM/ASME beside the
classic EN/DIN, also we can provide You almost all kinds of
qualitis.
Ouc company can supply boiler tube parts onto the boiler tubes as
well like elbows, bottoms, reducers, flanges. Please
send Your demand to us!
Size assortment: longitudinal welded: 21,3-610 mm, seamless:
21,3-812 mm, spiral welded: acc. To customised demands
Standards: EN 10217-2, EN 10220, EN 10216-2, DIN 2448/17175, AD
2000 W4/DGRL97/23/EG VdTÜV WB 511/2, AD
2000 W4/TRD 100/102
Qualities: P235GHTC1/TC2, 16Mo3, 13CrMo4-5, 10CrMo9-10,
X10CrMoVNB9-1, X20crMo V11-1, St35 .8.I., St 35.8.III.,
P195GH, P235GH, P265GH, 14MoV6-3, 10CrMo5-5, 11CrMo9-10, 25CrMo4,
L235/275/355, P215NL, P265NL, P355N,
P460N, P355NH, P355NL1, P460NL1, P275NL2, P355NL2, P460NL2
Lenghts: 4-18 m
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
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
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Best Pipeline uses high-quality products and good service to
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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