OEM/ODM China Steel Hollow Bar Size - Round Steel Screw Guard Tubing for Solar Tracking System – Rainbow
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 :
Flattening and Flaring Test:
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.
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 :
Exhibition Show:
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Tianjin Rainbow Steel, Tianjin China
Product detail pictures:
Related Product Guide:
Technical Specification for safety of steel pipe scaffold for construction
Some problems in the construction of steel structure and their solutions
Being supported by an highly developed and skilled IT group, we could offer you technical support on pre-sales & after-sales support 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: Algeria, Seattle, Venezuela, It is our customers' satisfaction over our products and services that always inspires us to do better in this business. We build mutually beneficial relationship with our clients by giving them large selection of premium car parts at marked down prices. We offer wholesale prices on all our quality parts so you are guaranteed greater savings.
By Alexia from Bangkok - 2017.01.28 18:53
The enterprise has a strong capital and competitive power, product is sufficient, reliable, so we have no worries on cooperating with them.
By Annabelle from Spain - 2018.09.23 17:37
