Company Details

  • Cangzhou Zhongshun Steel Pipe Trade Co., Ltd.

  •  [Hebei,China]
  • Business Type:Manufacturer , Organization , Service
  • Main Mark: Worldwide
  • Exporter:91% - 100%
  • Certs:GS, CE, ACS, COS, ISO9001
  • Description:Steel EFW Pipes,A 672 Grade Tube,Ms Welded Pipe
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Cangzhou Zhongshun Steel Pipe Trade Co., Ltd.

Steel EFW Pipes,A 672 Grade Tube,Ms Welded Pipe

Home > Products > LSAW Steel Pipe > Pipe For Low Pressure Liquid Delivery > ASTM A 672 Grade:- C65 - Class-22 pipe

ASTM A 672 Grade:- C65 - Class-22 pipe

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    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Min. Order: 1 Ton
    Delivery Time: 30 Days

Basic Info

Model No.: 36"NB x Sch XS (12.7mm)

Type: Welded

Certification: API, CE, BSI, UL

Application: Structure Pipe, Oil Pipe, Boiler Pipe, Chemical Fertilizer Pipe, Gas Pipe, Hydraulic Pipe

Section Shape: Round

Surface Treatment: Black

Usage: Pipeline Transport, Oil&Gas Well Drilling, Construction & Decoration

Technique: EFW

Material: Carbon Steel

Fixed Length: 12 Meters

Delivery Port: Tianjin Port China

Pipe Requests: Black Painting ;bevel Ends; Plastic Caps; Bundling

Certificate: SGS; BV ; API 5L ETC.

Contact Peron:

Standard: ASTM A672

Delivery Time: 30 Days After The Payment

HS Code: 730619

Grade: CC65 CL12 22

Size: 36”NB X Sch XS

Additional Info

Packaging: BARE

Productivity: 5000 tons per month

Brand: ZS

Transportation: Ocean,Land,Air

Place of Origin: China

Supply Ability: 100000 Tons one year

Certificate: ISO; API ;SGS ;BV; PED;ETC

HS Code: 730619

Port: Tianjin,Shanghai,Guangzhou

Product Description

Big straight seam welded pipe main production process

Agent: 1. The plate used in the manufacture of large diameter submerged-arc welding straight seam Steel Pipe, steel plate into the production line after the first full plate ultrasonic inspection;

2. The edge milling: through the two edges of the steel plate edge milling machine double-sided milling, make it meet the requirements of plate, plate edge parallelism and groove shape;

3. The bending edge: the use of bending machine for plate bending, make the edge of curvature;

4. Molding: on the JCO forming machine bending of the plate after half after many step punching, pressure into a "J" shape, and the other half of the steel plate bending, same pressure into a "C" shape, eventually forming the opening "O" shape.

5. Early welding: the forming of straight seam Welded Steel Pipe joint with gas protection welding and continuous welding (MAG);

6. The welding: the columns more wire submerged arc welding wire (up to 4) in the straight seam welded steel pipe inside;

7. The welding: adopting many wire submerged arc welding of columns in the side of straight seam submerged arc welding steel pipe welding;

8. Ultrasonic inspection Ⅰ: inside and outside of straight seam welded steel pipe weld and weld on both sides of the base of 100% of the check;

9. X-ray Ⅰ: 100% of inside and outside weld X-ray industrial TV inspection, using image processing system to ensure the sensitivity of detection;

10. Hole enlargement of submerged arc welding and straight seam steel pipe length hole diameter in order to improve the size precision of steel tube, and improve the distribution of stress in steel tube.

Straight seam steel pipe welding seam welding

Two edges of straight seam steel pipe billet heating to welding temperature, under the extrusion of squeezing roller, forming a common metal grain interpenetrate, crystallization, eventually forming solid weld. If the extrusion pressure is too small, the amount of common crystal small, weld metal strength drops, stress produces after cracking; If the extrusion pressure is too large, will make molten metal being squeezed out of the seam, not only reduce the weld strength, and can produce a large number of inside and outside burr, even cause the welding seam defects such as.

Straight seam steel pipe weld after welding and extrusion can produce welding scar, need to be cleared. Remove method is fixed on the rack cutter, by the rapid movement of welded pipe, the welding scar leveling. Welded pipe inside burr is generally not cleared. Now with welded phi 32 x 2 mm straight seam welded pipe as an example, briefly describes its process parameters: strip specification: 2 x 98 mm bandwidth according to the path of development with a small amount of molding allowance; Material: steel Q235A; Input excitation voltage: 150 v excitation current: : 1.5 A frequency 50 hz; Output dc voltage: 11.5 kV dc current: 4 a: frequency 120000 hz; Welding speed: 50 metres per minute; Parameter adjustment: according to the welding line energy changes in a timely manner to adjust the output voltage and welding speed. Generally not adjusted after parameters are fixed.

High frequency induction coil should be close to squeeze roll as far as possible. Located away from the squeezing roller, induction coil, if effective heating time is longer, heat affected area is broad, weld strength; On the other hand, the lack of weld edge heating, bad after extrusion molding. Impedor is a magnet for or a compound tube, the impedance of cross-sectional area should not be less than steel pipe diameter usually 70% of the cross-sectional area, its role is to make the induction coil, pipe weld edge and magnet form a electromagnetic induction loop, proximity effect, eddy heat concentrated near the pipe weld edge, the tube billet is heated to the welding temperature. Impedance for a drag in the tube billet steel wire, the center should be relatively fixed position in the center of the close to squeeze roll. Powered on, due to the tube billet rapid movement, impedance device by pipe wall friction loss is bigger, often need to change.

JCOE Pipe for Gas Pipeline, Gas Pipeline JCOE Pipes | HSPC - JCOE Pipe for Gas Pipeline Supplier

Product Line

JCOE LSAW steel pipeline

Outer Diameter (OD)

457mm-1422mm (16"-56")

Wall Thickness (W/T)


Length (L)





API Spec 5L(PSL1,PSL2), ASTM A252, ASTM A672, ISO3183, etc

Annual Output

150,000 tons/year

Products standards: ISO3183,APISpec 5LPSL2,API Spec 2B,GB/T9711 etc.

The application of JCOE pipe for gas pipeline

The pipe are mainly used as long diatance transportation pipeline for oil,gas,liquid coal etc. on land and offshore.And also can be applied as construction pipes on offshore platform, power station ,petrochemistry and city construction etc.

1.MOQ (Minimum Order Quantity): 50 tons per size for normal Carbon Steel Pipe; 100tons per size for special steel pipe.

2. Delivery Time: Mostly in 45 to 60 days.

3 Payment:30% T/T advance, 70% T/T or L/C at sight balance of copy of B/L.

4. Production Capacity: 150,000 tons per year.




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Product Categories : LSAW Steel Pipe > Pipe For Low Pressure Liquid Delivery

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