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BEST PIPELINE EQUIPMENT CO.,LTD
Your one stop shop for all your piping needs such as Seamless & Welded Carbon / Stainless & Alloy Steel Pipes, Mainly alloy Steel Pipes , Forged Flanges, Butt Weld Fittings, Forged Fittings,
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Round Seamless Alloy Steel Pipe , Mild Steel Seamless Tube With Hydraulic Testing

BEST PIPELINE EQUIPMENT CO.,LTD
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Round Seamless Alloy Steel Pipe , Mild Steel Seamless Tube With Hydraulic Testing

Brand Name : Best

Model Number : 1/2'' -48''

Certification : API /CE / ISO /TUV

Place of Origin : China

MOQ : 1 TONS

Price : 450 USD/TON

Payment Terms : L/C, T/T

Supply Ability : 100000 Ton/Year

Delivery Time : Shipped in 25 days after payment

Packaging Details : 1) In bundle with strip; 2) First packing by plastic bag then strip; Details packing please see the picture in the detial description.

Standard : PN-EN 10305-2

Grade : Cold drawn steel tubes

Technique : E155 , E195, E235 , E275

Finish : SAWH

Keyword : SAWL (longitudinal welding)

Inspection : With Hydraulic Testing

Surface : Barded /Painting

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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:

alloy steel seamless tubes

      

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Round Seamless Alloy Steel Pipe , Mild Steel Seamless Tube With Hydraulic Testing Images

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