Round Pipe
Hot Dip Galvanized Round Steel Pipe GI Pipe Pre Galvanized Steel Pipe Galvanized Tube for Construction
Product Description
Hot-dip galvanized pipe
Hot-dip galvanized pipe is to react molten metal with iron matrix to produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first, in order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned in an aqueous solution of ammonium chloride or zinc chloride or an aqueous solution mixed with ammonium chloride and zinc chloride, and then sent to the hot-dip plating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The steel pipe matrix undergoes complex physical and chemical reactions with the molten plating solution to form a corrosion-resistant and compact zinc-iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix. Therefore, it has strong corrosion resistance.
1. Uniformity of galvanized layer: the steel pipe sample shall not turn red (copper plating color) when continuously impregnated in copper sulfate solution for 5 consecutive times.
2. Surface quality: The surface of the galvanized steel pipe should have a complete galvanized layer, and there should be no black spots and bubbles that have not been plated, and small rough surfaces and local zinc tumors are allowed.
3. Weight of galvanized layer: According to the requirements of the buyer, the galvanized steel pipe can be used for the weight determination of the zinc layer, and its average value should not be less than 500g/square meter, of which any sample shall not be less than 480g/square meter.
Product Parameters
| Material | Q195,Q235,Q345 |
| Tolerance | ±5% |
| Application | Construction |
| Processing services | Cutting/Welding/Bending |
| Shipping date | 15-21days |
| Price terms | FOB/CFR/CIF/EXW/ETC |
| Standard | ASTM,BS,GB |
| Package | Standard Sea-worthy Packing |
| Product name | Round pipe |
| Technical standard | Cold Rolled /Hot Rolled |
| Thickness | 0.6 - 30 mm or customized |
| Length | 6m,12m or customized |
Production Flow Chart
Project Case
Pack And Ship
Certificate
Customer Praise
Plant And Equipment
FAQ
Q: How can we trust your company?
A: We specialize in steel business for many years, you are welcome to investigate in any way.
Q. How do you guarantee the quality?
A:①We have passed ISO9001, SGS, CE and other certifications;
②Always have pre-production samples before mass
production,and always do final inspection before shipment;
③ Acceptable third-party inspection.
Q: About the product price?
A: Due to the cyclical changes in raw material prices, prices vary from period to period. You can consult us, you can communicate with us online through the platform, WeChat, WhatsApp and other platforms, and we will reply within 24 hours. Please give us your requirements and specifications (steel grade, size, quantity, destination port), and we will work out the best price at the first time.
Q: Can I visit your factory?
A: Of course, we welcome customers from all over the world to visit our factory. However, some factories are not open to the public.
Q: Can you send samples?
A: Of course, we can send samples to all over the world, our samples are free, but customers need to bear the express cost.
Q: How long is your delivery time?
A: Generally speaking, our delivery time is within 15-45 days, if the demand is particularly large or there are special circumstances, the delivery time may be delayed.