Company Details

  • Shijiazhuang Bang dong Pipeline Technology Co,Ltd.

  •  [Hebei,China]
  • Business Type:Manufacturer
  • Main Markets: Africa , Asia , East Europe , Europe , Middle East , North Europe , West Europe
  • Exporter:91% - 100%
  • Certs:CE, ISO9001
  • Description:ERW/Efw Stainless Steel Pipes,Carbon Black Steel Pipe,Carbon Steel Welded Pipes
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Shijiazhuang Bang dong Pipeline Technology Co,Ltd.

ERW/Efw Stainless Steel Pipes,Carbon Black Steel Pipe,Carbon Steel Welded Pipes

Home > Products > Steel Pipe > ERW/EFW Pipe > ERW/EFW spiral seam welded steel pipe/tube

ERW/EFW spiral seam welded steel pipe/tube

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    Payment Type: L/C,T/T
    Incoterm: FOB,CFR,CIF
    Min. Order: 10 Meter

Basic Info

Model No.pipe/tube

BrandBangdong

TypeSeamless

CertificationCE

ApplicationDrill Pipe

Section ShapeRound

Surface TreatmentAntiseptical

UsageConstruction & Decoration

TechniqueERW

MaterialCarbon Steel

Additional Info

PackagingBundled or as per buyer's requirements

Productivity1000mtr/month

TransportationOcean,Land,Air,Train/TNT/DHL

Place of OriginCangzhou,China

Supply Ability1000mtr/month

CertificateISO/CE/API

HS Code73044190

PortZhengzhou Train Station,Qingdao Port,Tianjin New Port

Payment TypeL/C,T/T

IncotermFOB,CFR,CIF

Product Description

ERW/EFW spiral seam welded Steel Pipe/tube

Stainless Steel Pipe and Carbon Steel Pipe are the most common type of standard pipe used today. They are part of tubular goods which are manufactured to different specifications and standards. Pipes are sold by "nominal pipe size" in sizes from 1/8" to 72". Two most common types of pipes are Welded Pipe and Seamless Pipe. Both are available in carbon steel and stainless steel. Welded pipe is also called ERW (Electric Resistance Welded) pipe. Most common specification for welded carbon steel pipe is A53. Seamless pipe is made by process that requires no welding. Most common specification for seamless carbon steel pipe is A106 B Steel Pipe. Stainless Steel pipe is made to spec A312. Stainless steel pipe is also available in both seamless and welded configuration. Most common stainless material is 316 and 304.

Electric Resistance Welding(ERW steel pipe): welding member combination is applying pressure through the electrodes, the use of current through the joint area of the contact surface and the adjacent heat generating resistance welding process method, Also known as contact welding. It has excellent toughness and dynamic load strength, welding deformation. Commonly used spot welding, seam welding and butt three.

ASTM Specification A53 covers seamless and welded, black and hot-dipped galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding. 

A53 Comparative Specifications

ASTM Specification A53 covers seamless and welded, black and hot-dipped galvanized nominal (average) wall pipe for coiling, bending  and other special purposes and is suitable for welding. Bangdong Pipeline Products does not produce galvanized pipe.

MECHANICAL PROPERTIES – TENSILE REQUIREMENTS

Seamless and ERW

Grade A

Grade B

Tensile Strength, min, psi  

48,000

60,000

Yield Strength

30,000

35,000

CHEMICAL REQUIREMENTS FOR A53

Seamless and ERW   

C max %

Mn max %

P max %

S max %

Grade A

0.25

0.95

0.05

0.045

Grade B

0.30

1.20

0.05

0.045

· Testing Requirements for seamless and welded API 53 steel pipe

Hydrostatic Testing test pressures for plain and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and ERW pipe.

Mechanical Tests:

§ Tensile Test: Two transverse tests required on the ERW for NPS 8 and larger, one across the weld and one opposite the weld.

§ Flattening Test: On ERW for NPS 2 and larger, STD and XS wall (not required for XXS pipe)

§ Bending Test (cold): For NPS 2 and under, XS wall and under; for NPS 1-1/4 and under, XXS wall

 

Degree of Bend  

Diameter of Mandrel

For normal A53 users 

90

12 x nom. diameter of pipe

For Close Coiling

180

8 x nom. diameter of pipe





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Product Categories : Steel Pipe > ERW/EFW Pipe

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