Galvanized Steel Pipe

galvanized steel pipe is a welded steel pipe with a hot-dip or electro-Galvanized layer on the floor. Galvanizing can boom the corrosion resistance of metal pipes and lengthen their service life. Galvanized pipes are broadly used. Further to getting used as pipeline pipes for popular low-stress fluids along with water, gasoline, and oil, they may be also used as oil nicely pipes and oil pipelines in the petroleum industry, particularly offshore oil fields, and oil warmers and condensation pipes for chemical coking equipment. Pipes for coolers, coal distillation washing oil exchangers, trestle piles, and help pipes for mine tunnels, and many others.

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Classification of galvanized steel pipe:

Galvanized metallic pipes are divided into cold galvanized metal pipes and hot-dip galvanized metal pipes.The recent-dip galvanized pipe reacts the molten metal with the iron substrate to produce an alloy layer, so that the substrate and the coating are combined. Hot-dip galvanizing is to pickle the metallic pipe first. With a view to do away with the iron oxide at the floor of the metal pipe, after pickling, it's miles wiped clean via ammonium chloride or zinc chloride aqueous solution or a combined aqueous answer of ammonium chloride and zinc chloride, after which despatched to hot-dip coating tank. Hot-dip galvanizing has the benefits of uniform coating, robust adhesion and lengthy provider existence. The recent-dip galvanized metal pipe substrate undergoes complex bodily and chemical reactions with the molten plating technique to shape a corrosion-resistant zinc-iron alloy layer with a decent structure. The alloy layer is integrated with the pure zinc layer and the steel pipe substrate, so it has robust corrosion resistance.

Bloodless-dip galvanized pipe is electro-galvanized, the quantity of galvanizing may be very small, and its corrosion resistance is a good deal worse than that of hot-dip galvanized pipe. The galvanized layer of cold-dip galvanized metallic pipe is an electroplated layer, and the zinc layer is independently layered with the metal pipe substrate. Zinc is rather thin, and the zinc layer is without difficulty attached to the metallic pipe substrate and is easy to fall off.

Consequently, its corrosion resistance is bad. In newly constructed homes, it's far forbidden to apply cold-galvanized steel pipes as water deliver pipes.

weight factor

The mechanical homes of metallic are critical signs to make sure the end-use performance (mechanical residences) of steel, which relies upon on the chemical composition and warmth remedy system of metallic. In steel pipe requirements, tensile properties (tensile energy, yield strength or yield point, elongation), hardness, sturdiness, and high and occasional temperature homes required via customers are particular in line with different use necessities.

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FAQ

Q:Will you can accept the customized and OEM products?
A:Yes,we can do the production based on your drawings and with your logo,also because we have very strong design and development team,so the feedback is very good for customized product.

Q:What is your payment terms?
A:Commonly two payment term for new customers
1 ) 30%T/T as deposit,70% balance against B/L copy.
2)100% Irrevocable L/C at sight.
If you need other terms, please feel free to contact us too, we will try our best.

Q:How about the samples? Is it free to extra fees?
A：Samples are free, you need to pay for shipping.

Q:How long is your delivery time?
A:Our daily inventory is more than 8000 tons, so far common products size,just need 5 days from stocks; if the special size from new production, delivery 7-15 days.

Q:How to control and guarantee your shipment quality?
A:1) All our factories are ISO 9001 certified facility;
2) World famous origin mills as TISCO, Bao steel;
3) Ex factory inspection by our own laboratory;
4) SGS/BV Third party inspection before delivery.