Production Information :
OFFSHORE - WIND POWER - ENERGY
Tubos sem Costura Tubos Industriais
Tubos com Costura Tubos Galvanizados
Tubos para Caldeira Tubos Eletrodutos
Tubos para Evaporadores Tubos Zincados
Tubos de aço sem costura são utilizados em
aplicações como cilindros hidráulicos,
componentes de transmissão, oleodutos,
ferramentas de perfuração, nos quais não se
pode ter soldas.
Sch 20, Std, Sch 40, Sch 80, etc.
Tubos Industriais de aço com costura de
seção circular, quadrada ou retângular
utilizados em estruturas serralheria, móveis
aparelhos de ginásticas, acessórios
automotivos, autopeças, etc.
Tubos de condução fabricados pelo processo
de solda longitudinal, E.R.W., utilizados em
redes residenciais, prediais e industriais de
baixa pressão como: vapor, ar condicionado
e comprimido, redes de incêndio (Splinklers),
óleos, fluídos líquidos e gasosos entre outros
Characteristics of the duplex pipes:
• Manufactured acc. to ASTM A / SA 790
• 100 % X-ray tested
• Bevelled ends acc. to ANSI B16.25
• In conformity with NACE MR 0175, MR 0103
• Corrosion test acc. to ASTM G48, Method A
• Corrosion test acc. to ASTM A923, Method C
Characteristics of the superduplex pipes:
• Manufactured acc. to ASTM A928, Class 1
• 100 % X-ray tested
• Bevelled ends acc. to ANSI B16.25
• Acc. to NORSOK M-630, MDS 52
• In conformity with NACE MR 0175, MR 0103
Steel designation according to EN:
• steel for tubes for mechanical treatment:
steel E355 + AR, E 355 + N
E – steel for machine parts, 355 – minimum yield strength in N/mm2, +AR – heat treatment is not required,
+N – normalising annealed or formed
steel 20MnV6
steel designated by chemical composition – guaranteed mean C content 0,20%, guaranteed content Mn and V
+AR – heat teratment is not required, +N – normalising annealed or formed
• steel for machine parts:
steel without heat treatment after mechanical treatment
non-alloy steel E 235, E275, E315, E355
Condition +AR or +N
steel with specific impact qualities (fine-grain) E275K2, E355K2
K2 – guaranteed characteristic of impact energy 40 J (K) by temperature –20 °C
steel with heat treatment after mechanical treatment
steel C22E
C – steel with carbon content 0,22%, E – reference to maximum checked content of S and P
steel 38Mn6
– guaranteed mean C content and guaranteed Mn content
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:
- EN 10225: Material S 355 G 13 + N/G 9/G10 + N/G 15 + N
- API 5 L: Material Grade X 52N PSL2 modified
- EN 10208-2: Material L 360 NB modified
Welded cold drawn precision steel tubes
Standard EN 10305-2
Dimensions 8 x 1 mm to 200 x 10 mm
Lengths 4 to 7 m
other lengths and fixed lengths on request
Delivery conditions +C (BK)
+N (NBK)
+A (GBK)
+LC (BKW)
+SR (BKS)
Materials Steel grade (EN)
E235
E355
other materials on request
Certification 2.2 acc. to EN 10204
other certifications on request
Welded cold sized precision steel tubes
Standard EN 10305-3
Dimensions 8 x 1 mm to 159 x 4.5 mm
Lengths 6 m
other lengths and fixed lengths on request
Delivery conditions +CR1 (BKM)
+CR2 (BKM/soft)
+N (NBK)
other delivery conditions on request
Materials Steel grade (EN)
E190
E195
E220
E235
other materials on request
Surface treatment cold rolled strip, pickled or unpickled hot rolled strip, aluminized,
sendzimir galvanized, galvanized, hot-dip galvanized,
for chrome-plating, inside welding seam removed
Certification 2.2 acc. to EN 10204
other certifications on request
WELDED STEEL PIPES
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
- at room temperature according to EN 10217-1 in materials P 235 TR1 or TR2
- at high temperatures according to EN 10217-2- and -5 in material P235 GH/TC1
- according to EN 10217-3 in material P355 N
- according to API 5L in materials Grade B PSL 1 and Grade BM PSL2
- according to API 5L in materials Grade X52 PSL 1 and Grade X52M PSL2
- according to ASTM A53-1995 in material Type E Grade B
■ 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.
BK (+C) Cold finished/hard (cold finished as drawn).
No heat treatment after last cold forming process.
BKW (+LC) Cold finished/soft (lightly cold worked).
After last heat treatment there is a light finishing
pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed.
After the final cold forming process the tubes are
stress relieve annealed.
GBK (+A) Annealed. After the final cold forming process
the tubes are annealed in a controlled atmosphere.
NBK (+N) Normalized. After the final cold forming process
the tubes are annealed above the upper
transformation point in a controlled atmosphere.
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
Product Tags:
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Barded / Painting Surface Alloy Steel Seamless Pipes NBR-5590 A-53 CE / ISO Marked Images
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