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[China]
Trade Verify
Address: China Factory : Suzhou Industrial Park, JiangSu Province,China
Contact name:amy
BEST PIPELINE EQUIPMENT CO.,LTD |
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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.
