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The Introduction of Hot Dipped /Pre-Galvanized Steel Pipe For Building Materials Q195/Q235 ASTM A53 A500
Square and Rectangular Pipe ASTM A 500 Hollow Section Tube Black and Galvanized Surface
The Introduction of the Galvanized Steel Round Pipe
Galvanized steel Round Steel Pipe are welded steel tubes with hot dip or electric galvanized coating on the surface.Galvanizing can increase the corrosion resistance of steel pipe and prolong its service life.Which uses is very wide, in addition to a general low pressure fluid such as water, gas, oil line pipe, also used as industry, especially the ocean oil field oil well pipe, oil pipe, chemical coking equipment of oil heater.
Hot-dip galvanized pipe
First, produce ordinary steel pipes with the required welding steel pipe specifications from the steel raw materials, and then proceed with galvanizing treatment. The galvanized steel pipe produced in this way is called hot-dip galvanized steel pipe, also known as hot-dip galvanized steel pipe. Hot dip galvanizing is the process of immersing metal into a zinc melt. To manufacture galvanized steel using this method, we need to follow four steps: cleaning the surface, flux, hot-dip coating, and cooling.
Pre galvanized pipe
The steel raw materials are first galvanized to produce galvanized strip steel, and then processed to produce steel pipes, which are called galvanized strip steel pipes or pre galvanized steel pipes. One of the advantages of pre galvanized steel over hot-dip galvanized steel is its better appearance. Pre galvanizing includes some steps of hot-dip galvanizing, such as cleaning the surface, immersing in a hot-dip zinc bath, and the coiling process.
| Product Name: | Square and Rectangular Carbon Steel Pipe Hollow Section Tube Black and Galvanized Surface | |
| Size: | OD | 15X15mm to 400x400mm,25x12mm to 400x200mm |
| Wall Thickness | 0.6mm-6mm | |
| Length | Less Than 12m | |
| Steel material | Q195 → Grade B, SS330,SPHC, S185 Q215 → Grade C,CS Type B,SS330, SPHC Q235 → Grade D,SS400,S235JR,S235JO,S235J2 | |
| Standard | BS EN10296,BS EN10025,BS EN10297,BS6323, BSEN10219,BSEN10217,GB/T13793-1992,GB/T14291-2006, GB/T3091-1993,GB/T3092-1993,GB3640-88 | |
| Usage | Used For Structure, Accessorize And Construction | |
| Ends | 1) Plain 2) Beveled 3) Thread with Coupling or cap | |
| End protector | 1) Plastic pipe cap 2) Iron protector | |
| Surface Treatment | 1) Bared 2) Black Painted (varnish coating) 3) Galvanized 4) With Oiled 5) 3 PE, FBE, corrosion resistant coating | |
| Technique | Electronic Resistance Welded (ERW ) Electronic Fusion Welded (EFW) Double Submerged Arc Welded (DSAW) | |
| Type | Welded | |
| Section Shape | Square/rectangular | |
| Inspection | With Hydraulic Testing, Eddy Current , Infrared Test | |
| Package | 1) Bundle, 2) In Bulk 3) Bags 4) Clients' Requirements | |
| Delivery | 1) Container 2) Bulk carrier | |
| Date of Delivery | According To The Quantity And Specification Of Each Order | |
| Others | Fitting as screws and flange also can be supplied. | |
| Product Name | Galvanized Steel Round Pipe(Hot Dipped or Pre Galvanized) |
| Material | Carbon Steel |
| Grade | Q195=S195/A53 Grade A Q235=S235/A53 Grade B/A500 Grade A/STK400/SS400/ST42.2 Q345=S355JR/A500 Grade B Grade C |
| Wall Thickness | 1MM~12MM as the requirement |
| Outer Diameter | 21.3MM~219.1MM |
| Length | 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques |
| Zinc Coating | 200g-500g/m2(30-70um) |
| Technique | ERW(GALVANIZED) |
| Packing | Bundle, or with all kinds of colors PVC or as your requirements |
| Pipe Ends | 1,Threaded both ends(BS or ASTM Standard) one end with plastic caps and other end with coupling 2,Grooved ends (BS or ASTM standard) 3,Plain Ends(Regular Situation) 4,Add plastic caps or not 5,Bevel ends with plastic Caps(30 degree bevel suitable to welding) |
|
Surface Treatment | 1. Galvanized 2. PVC,Black and color painting 3. Transparent oil,anti-rust oil 4. According to clients requirement |
| Product Application | 1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient |
The Size of square and Rectangular Steel tube Hollowen Section
| Square Hollow Section (SHS) | WT (mm) | Rectangular Hollow Section (RHS) | WT (mm) |
| 16*16 | 0.8-1.5 | 20*40 | 0.8-2.0 |
| 19*19 | 0.8-2.0 | 25*50 | 0.8-2.0 |
| 20*20 | 0.8-2.0 | 30*40 | 0.8-2.0 |
| 25*25 | 0.8-2.0 | 30*50 | 0.8-2.0 |
| 30*30 | 0.8-2.0 | 37*57 | 0.8-2.0 |
| 32*32 | 0.8-2.0 | 40*60 | 0.8-2.0 |
| 35*35 | 0.8-2.0 | 37*77 | 0.8-2.0 |
| 38*38 | 0.8-2.0 | 25*75 | 1.0-2.0 |
| 40*40 | 0.8-2.0 | 40*80 | 1.0-2.2 |
| 50*50 | 0.8-2.0 | 50*100 | 1.0-2.2 |
| 60*60 | 1.0-2.2 | 50*75 | 1.0-2.2 |
| 80*80 | 1.0-2.2 | 38*75 | 1.0-2.2 |
| 100*100 | 1.0-2.3 | 50*75 | 1.0-2.2 |
The Pictures of Galvanized Round steel Pipe
The Pictures of Galvanized square and Rectangular Steel tube Hollowen Section
Black Square and Rectangular Steel Tube Hollowen Section