OEM/ODM China Steel Hollow Bar Size - Round Steel Screw Guard Tubing for Solar Tracking System – Rainbow

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Introduction:Tianjin Rainbow Steel  has put emphasis over the administration, the introduction of talented staff, strengthen  the construction of team building, attempting hard to boost the standard and liability consciousness of personnel customers. Our company has successfully attained IS9001 ...


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OEM/ODM China Steel Hollow Bar Size - Round Steel Screw Guard Tubing for Solar Tracking System – Rainbow Detail:

Introduction:

Tianjin Rainbow Steel  has put emphasis over the administration, the introduction of talented staff, strengthen  the construction of team building, attempting hard to boost the standard and liability consciousness of personnel customers. Our company has successfully attained IS9001 Certification and European CE Certification . We often concertrating on creating new creative solutions to meet requests from our customers all over the world.

Welded steel pipes with hot dip coating or electric-galvanized coating on the surface of  steel pipes. Galvanizing coating will increase the corrosion resistance of steel pipes and prolong their service life. Galvanized pipes are widely used, not only as pipelines for water, gas, oil and other general low-pressure fluids, but also as oil  pipes .  galvanized coating pipes will also be used as scaffolding frame, solar mounting system steel frames, steel pole frames, and other related steel structures.

Specification:

Secondary or not Non-secondary
Alloy or not Non-alloy
Technique ERW, hot rolled or cold rolled
Standard BS 1387, BS EN 39, GB/T 3091, ASTM A53,
JIS G3444, etc.
Grade/Material 10#, 20#, 45#, Q195, Q235, Q345, 16Mn, ST 37.4, etc.
Place of origin Tianjin, China(Mainland)
Certifications ISO 9001:2008, BV, SGS, ABS
Production capacity 3500 ton/week
Section shape Round
Outer diameter 20-325mm
Wall thickness 1.0-25mm
Length 2-12m, or cut as request.
Technique tolerance OD: +/-1mm, WT: +/-0.5mm, L: +/-20mm
Surface treatment Galvanized, painted, oiled, printed or powder coated
Zinc coated pre-galvanized, 80-120 g/m2;
hot dip galvanized, 230-500 g/m2
Colour Silver, black or painted as request
End of pipe Plain?burred,beveled, threaded
Trade term FOB Tianjin China, CIF, C&F
Loading Port Tianjin Xingang Port, China
Package 1.Big OD: in bulk;
2.Small OD: in bundles, packed by steel strips;
3. Waterproof package with plastic cloth;
4.Standard export package;
5.According to customers

Inspection :

raw material_副本round tube tube

 

IMG_20211218_101454tube 3IMG_20211218_101537

Flattening and Flaring Test:

微信图片_20220114095721 微信图片_20220114095724

 

Flattening Test-–A test 4 to 6 in.(100-150mm)in length shall be flattened between parallel plates with the weld 90°from the direction of applied force(at the point of maximum bending)untillopposite walls of the tubing meet.Except as allowed in S6.2.1, no opening in the weld shall take place until the distance between the plates is less than two thirds of original outside diameter of the tubing,but in no case less than five times the thickness of the tubing wall.Evidence of lamination or burn material shall not develop during the flattening process, and the weld shall not show injurious defects. S6.2.1 when low D- to -t ratio tubing is tested, because the strainimposed due to geometry is unreasonably high on the inside surface at the six and twelve o’clock locations,cracks at these locations shall not be cause for rejection if the D-to -t ratio is less than 10.

微信图片_20220114095728 微信图片_20220114095733

Flaring Test—A section of tube approximately 4in.(100mm) in length shall stand being flared with a tool having a 60° included angle until the tube at the mouth of the flare has been expanded 15% of the inside diameter, without cracking or showing flawns.S 6.4 in order to properly evaluateweld quality ,the producer at his option may normalize the test specimen prior to testing. S6.5 Number of tests and retests:S6.5.1 Two Falttening and two flaring tests shallbe made from each lot as specified. Each tested specimen shall conform to the respective rtequirement(see note S1). S 6.5.2 if the results of the testing do not conform to the requirements,retests shall be made on four  additional specimens,each of which shall conform to the respective requirement.

 

 

Packing :

tube packingtube

 

Exhibition Show:

Canton Exhibition exhibition 1

Welcome to visit us !

Tianjin Rainbow Steel, Tianjin China


Product detail pictures:

OEM/ODM China Steel Hollow Bar Size - Round Steel Screw Guard Tubing for Solar Tracking System – Rainbow detail pictures

OEM/ODM China Steel Hollow Bar Size - Round Steel Screw Guard Tubing for Solar Tracking System – Rainbow detail pictures

OEM/ODM China Steel Hollow Bar Size - Round Steel Screw Guard Tubing for Solar Tracking System – Rainbow detail pictures

OEM/ODM China Steel Hollow Bar Size - Round Steel Screw Guard Tubing for Solar Tracking System – Rainbow detail pictures


Related Product Guide:
Technical Specification for safety of steel pipe scaffold for construction
Steel length dimension

We'll make every effort and hard work being outstanding and excellent, and speed up our techniques for standing during the rank of global top-grade and high-tech enterprises for OEM/ODM China Steel Hollow Bar Size - Round Steel Screw Guard Tubing for Solar Tracking System – Rainbow , The product will supply to all over the world, such as: Benin, Mexico, Porto, Our company will adhere to "Quality first, , perfection forever, people-oriented , technology innovation"business philosophy. Hard work to keep making progress, innovation in the industry, make every effort to first-class enterprise. We try our best to build the scientific management model, to learn abundant professional knowledge, to develop advanced production equipment and production process , to create the first-call quality products, reasonable price , high quality of service , quick delivery , to give you create new value .
  • The goods are very perfect and the company sales manager is warmful, we will come to this company to purchase next time.
    5 Stars By Nora from Sevilla - 2017.10.25 15:53
    This company conforms to the market requirement and joins in the market competition by its high quality product, this is an enterprise that have Chinese spirit.
    5 Stars By Nick from St. Petersburg - 2018.12.05 13:53
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