Spiral welded carbon steel pipe
|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-029
Also known as helical or spiral tube body. Spiral tube outer diameter of about 30 nm and an inner diameter of about 10 nanometers, adjacent helical pitch of about 11 nm. 1 week of each spiral from 6 surrounded nucleosome, H1 histone in the spiral cavity of the inner surface of maintenance of spiral structure plays an important role. The nucleosome composed of 10 nm, 30 nm fiber to form spiral of crude fiber, so that further compression 6 times the length of DNA.
Application solutions, emulsions cleaning steel look to reach the removal of oil, grease, dust, smoothing agents, and similar organic matter, but it does not remove the steel appearance of rust, scale, welding flux, and thus the corrosion produced only as adjuvant trick.
2, tool rust
The primary use of tools such as steel wire brush polished look, you can remove loose or tilt of the oxide scale, rust, welding slag. Hand Tools rust can reach Sa2 level, power tools rust can be reached Sa3 level, if the outer steel skin attached to solid iron oxide, the results are not ideal tools rust, corrosion of the anchor pattern depth of less than construction requirements.
Common chemical and electrolytic pickling two ways to do disposal pipeline corrosion using only chemical pickling can descaling, rust, old coatings, and sometimes used as a sand-blasting and then disposed of after. Chemical cleaning is important in allowing the appearance of the inevitable arrival of cleanliness and roughness, but the anchor pattern shallow, and easy on the case of forming pollution.
4, spray (throwing) radio rust
Spray (throwing) radio rust is the result of high-power motor driven spray (throwing) radio blade speed reverse, so that grit, steel shot, wire segments, minerals and other abrasive under the centrifugal effect of the outer pipe were shot dispose spray (throwing) not only can completely eliminate rust, oxides and dirt, and steel in the fierce impact and abrasive friction effects, but also to reach an average roughness needs.
Spray (throwing) radio rust, it can be extended not only physical adsorption outer tube, and can enhance the effect of the mechanical adhesion of the coating and the outer tube. Thus, the spray (throwing) radio rust rust is an ideal method for pipeline corrosion. Generally, blasting (sand) blasting is mainly used for disposal of the tube look, blasting (sand) blasting is mainly used for surface of the pipe surface disposal.
High accuracy(ISO2768, ISO5817, ISO13920); Detail: ID+/-2mm, Length within 5mm, straightness: <1mm/1m
10#-45#, Q195-Q345, X42-X80, L245-L255 or other materials
Spiral or Longitudinal single seam pipe or Longitudinal with crossing seams
As per drawing
API 5L, BS 1387, GB/T 3091-2001, GB/T9711, ASTM A53-2007, ASTM A252-1998
Can produce ID800*25 specification for Spiral pipe
Sa2.5 blasted and two or three layers painted with highest quality
as per clients' requirements, normal weld stainless mark plate
material, construction, dimension, welding seam, non defective test, paint inspection
Recyclable, in line with environmental requirements and standards, and reliable
Photos of our Spiral welded carbon steel pipe
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Unisite Group Ltd.
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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