Longitudinal welded steel pipes
|Terms of Trade:||FOB,CFR,CIF|
|Min. Order:||100 Piece/Pieces|
|Delivery Time:||30 Days|
|Packaging:||bulk package and bulk vessel transportation; frame container package and frame container transportation|
|Place of Origin:||china mainland(zhejiang)|
Model No.: USA-038
Dimension: As Per Drawing/order
Inspection: Material, Construction, Dimension, Welding Seam, N
Grade: 10#-45#, Q195-Q345, X42-X80, L245-L255 Or Other Ma
Standard: API 5L, BS 1387, GB/T 3091-2001, GB/T9711, ASTM A5
Certificate: API BV
Application: Marine Steel Structure And Dredging Field And Oil
Tolerance: High Accuracy(ISO2768, ISO5817, ISO13920); Detail:
Surface: Sa2.5 Blasted And Two Or Three Layers Painted With
Longitudinal Steel Welded Pipe: Longitudinal Welded Steel Pipes
Straight tube refers to weld and pipe longitudinal parallel. Generally known as welded pipe or pipe. The straight pipe is through the high frequency welding strip steel coiling unit will be of certain specifications and with longitudinal welded. Straight pipe specifications with nominal diameter, the wall thickness can be divided into thin-walled straight tube and a thick wall straight seam pipe two. According to the shape can be divided into round, square or shaped tube, etc..
Classification by application
According to use points for general welded pipe, galvanized pipe, oxygen blowing pipe, wire casing, metric pipe, roller tube, deep well pump, automobile with pipe, transformer tube, welded thin-wall pipe, welding shaped tube and spiral welded pipe.
General welded pipe: General welded pipe used to transport low pressure fluid. With Q195A, Q215A, Q235A steel manufacturing. Also can use other steel easy welding manufacturing. Pipe to pressure, bending, flattening test, on the surface quality have certain requirements, usually delivery length performances, often requires a fixed length (or double length) delivery. Specifications of welded pipe with nominal diameter said (mm or inches) nominal diameter different from the actual one, pipe according to the provisions of the wall thick general steel and thicker steel pipe, steel pipe by pipe ends and threaded and non threaded two.
Galvanized steel pipe: in order to improve the corrosion resistance of galvanized steel pipe general (Clarinet). Galvanized steel pipe is divided into two kinds of hot dip galvanized and galvanized steel, hot dip galvanized coating thickness, low cost of electro galvanized.
Oxygen blowing pipe: used for steel smelting blowing tube, usually with a small diameter of the welded steel pipe, specifications from 3/8 inch -2 inch eight. Made of 08, 10, 15, 20 or Q195-Q235 steel. In order to prevent corrosion, some of them are treated by aluminum.
Wire casing and ordinary carbon steel welding steel tube in concrete and various kinds of structure and distribution engineering, commonly used nominal diameter from 13-76mm. Wire casing wall is thinner, most of the coating or galvanized after the use of cold bending test requirements.
Metric pipe: Specifications for seamless pipe, with outer diameter * wall thickness mm welded steel pipe, with ordinary carbon steel, quality carbon steel or Puneng low alloy steel of tropical, cold welding, or welding with tropical to cold dial method is made. Metric pipe points sagacity and thin, ordinary as structural members, such as the drive shaft, or transmission fluid, thin wall used in the production of furniture, lamps and lanterns, to ensure the strength of the steel tube and bending tests.
longitudinal welded pipe
High accuracy, full penetration welded
Spiral, LSAW, SAW
Certificate API5L, ISO9001
Accessories of our pipe line
With flanges or without flanges at pipe ends.
We can weld flanges with good quality.
Photos of our Longitudinal welded steel pipes
With professionalism, vitality, innovation, respect, team spirit, UniSite culture (corporate values, corporate philosophy and behavior shaping) is continuously developing, along with our company from its foundation.
UniSite group is able to offer our client best possible and most sustainable solutions to their requirement.
How to contact us?
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About Us Send Inquiry Now
UniSite group was established in 2008 in Ningbo - Chinese second largest port, dredging relevant products manufacturing & supplying since 2005, that is characterized by visible leadership, vitality, innovation, long-term vision and a sound financial position.
As an international partner, we are specialized in providing comprehensive service of dredging, land reclamation, offshore projects, marine engineering, piling works, municipal engineering, mechanical engineering, construction machinery, oilfield projects and environmental remediation projects.
The group has a perfect managing system and our staff who are professional in technology are committed, passionate, efficient. Thanks to the knowledge, the experience and the skills of our work team, we are able to offer our client best possible and most sustainable solutions to their requirement. We are one of the leading steel parts and service providers for dredging and marine engineering in China.
UniSite culture consists of corporate values, corporate philosophy and behavior shaping, which is the core of responsibility and breakthrough. Based on this core, with professionalism, vitality, innovation, respect, team spirit, UniSite culture is continuously developing, along with our company from its foundation.
Activities and projects
1)UniSite`s first core activity: serve for dredging and marine projects
Provide service and relevant parts for dredgers, including dredger construction, repairing and maintenance.
Provide items for dredging, land reclamation, offshore, marine engineering, piling works, municipal engineering, oilfield projects and environmental remediation projects.
Steel Structures and Pipes
Casting and Pump parts
Machining Parts whatever big or small
Piling and Parts
- Pontoon; Floating platform; Marine work platform; Buoy; Float; Fender
- Anchor box system;
- Sinker pipe line; Shore pipe line; Floating pipe line; Piling pipe; Sheet pile;
- Y piece; Bend; Fall pipe; Ball joint pipe;
- Rubber hose;
- Small dredger: standard cutter suction, bucket, grab, shovel stone, mud and stone construction
- Spud; CSD Spud;
- Suction pipe; Arm piece; Jet pipe;
- DW pipe; Wear resistant pipe; Structure pipe; Shipping building pipe;
- Pump; Pump spare parts(impeller, shell, casing, liner, cover)
- Branch casting pipe; Casting bend;
- Loading box; Bottom door; Overflow; Fender frame; Bow coupling; Anchor; Hopper panel; Basket; Bucket; Clamp ring; Drag head; Cutter head; Cutter ladder;
- Sliding piece; Gantry; Turning gland; Chute flap; Kingpin; Cutter platform; Water box; Bow coupling; Anchor; Hopper panel; Hopper door; Basket; Bucket; Bucket wheel; Clamp ring; Close plate; Gantry;Dredge gate valve; Valve body;
- Mooring system(mooring rope, mooring bollard, mooring winch, mooring fairlead, anchor windlass, chain stopper, roller fairlead, wheel fairleader, panama chock, marine mooring rope reel, anchor releaser, marine shutter, pipe clamp)
2) UniSite`s second core activity: serve for machinery and automobile projects
Provide service and relevant parts for mechanical engineering, construction machinery, agricultural machinery, port hoisting machinery, metallurgy, automobile, chemical, marine machinery.
Big Machining(machining center, boring and milling, lathe)
Small Machining(cnc, milling, grinding)
Casting (sand, investment)
Stamping and Bending
- Machinery Products(like Wind Turbine Generate System Hub, Wind Power Bearing Block, Punching Machine Sliding Block, Punching Machine, diesel power generator base, die casting machine base, injection molding machine base, punch, tank, pump parts, accumulators parts, valve parts, construction parts, agricultural parts etc.)
- Machinery Products
- Auto Products
- Shipping building Products
- Medical Products
- Oil Products
With about 10 years` experience, now our products and service are involved in many projects all over the world. Like:
1)Palm islands construction, World thousand islands construction, Australian coastline and port expansion, Gladstone project construction, Brisbane airport project construction, the Vietnamese government`s port expansion, Panama coastline expansion, Railway tunnel Schuman-Josaphat construction(Belgium), World`s first formal floating sea restaurant construction(Darling Harbour, Sydney), New Suez Canal project construction, Municipal tunnel projects construction(Alger)--
Production and equipment
pipeline production equipment
bending press equipment
CNC plasma cutting equipment
advanced paint room and equipment
Technology and Quality
Offering our client best possible and most sustainable solutions to their requirement. Production procedure
Step1: Drawing and technical requirement analysis, production lofting;
Step2: Material cutting, trimming, groove, cleaning, bending, rolling, dimension & NDT inspection
Step3: From part assemble to whole assemble with accurate template and platform, dimension & NDT inspection, welding, dimension & NDT inspection;
Step4: Casting, forging, stamping, machining if necessary
Step5: Final dimension & NDT inspection;
Step6: Surface treatment;
Step7: Package, Loading and Lashing when delivery;
UniSite have a perfect managing system and quality control system which from initial work.
ISO9001-2008/CCS; BV manufacturer capability qualification.
Taken part in the CHINA DREDGING ASSOCIATION
Quality, health, safety and environment (QHSE)
In-house safety training to our staff
Checking all the production equipment periodically
Preventing pollution, accidents and health hazards, auditing
In order to perform comprehensive service and relevant items to clients' satisfaction, UniSite knows the importance of advanced technology, equipment, quality and continuously invests in advanced production base and equipments. The group has a perfect managing system and quality control system which from initial work, to process control, to final control, forming the whole process traceability with a good command of quality and production schedule.
We are able to offer our client best possible and most sustainable solutions to their requirement.
- Company Name: Unisite Group Ltd
- Representative: Yu ZHUOFANG
- Product/Service: dredging parts , marine engineering and parts , ship building and parts , machining parts , casting and pump spare parts , piling parts
- Capital (Million US $): 1,500,000
- Year Established: 2008
- Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
- Export Percentage: 91% - 100%
- Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
- No. of Production Lines: 6
- No. of R&D Staff: 5 -10 People
- No. of QC Staff: 11 -20 People
- OEM Services Provided: yes
- Factory Size (Sq.meters): 10,000-30,000 square meters
- Factory Location: JiaoTou industry park, LiuHeng island, Putuo district, Zhoshan
- Contact Person: Mr. Kevin Mei
- Tel: 86-574-87053650
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