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Zhengde Galvanized steel pipes are divided into cold-galvanized pipes and hot-dip galvanized pipes. According to the shape, they are divided into galvanized round pipes and galvanized square rectangular pipes. Both the substrate 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 by ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to hot-dip coating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.
DN | outer diameter | Ordinary steel pipe | Thickened steel pipe | |||||||
MM | MM | Deviation | Thickness | welded pipe(kg/m) | Galvanized pipe(kg/m) | Thickness | welded pipe(kg/m) | Galvanized pipe(kg/m) | ||
MM | Deviation | MM | Deviation | |||||||
6 | 10.2 | 2.0 | 0.40 | 0.4256 | 2.5 | 0.47 | 0.50 | |||
8 | 13.5 | 2.3 | +12% -15% | 0.62 | 0.64 | 2.75 | +12% -15% | 0.73 | 0.75 | |
10 | 17 | 2.3 | 0.82 | 0.84 | 2.75 | 0.97 | 1.00 | |||
15 | 21.3 | ±0.5mm | 2.8 | 1.26 | 1.30 | 3.25 | 1.45 | 1.49 | ||
20 | 26.8 | 2.8 | 1.63 | 1.68 | 3.50 | 2.01 | 2.07 | |||
25 | 33.5 | 3.3 | 2.42 | 2.49 | 4.00 | 2.91 | 3.00 | |||
32 | 42.3 | 3.3 | 3.13 | 3.22 | 4.00 | 3.78 | 3.89 | |||
40 | 48 | 3.5 | 3.84 | 3.96 | 4.25 | 4.58 | 4.72 | |||
50 | 60 | ±1% | 3.5 | 4.88 | 5.03 | 4.50 | 6.16 | 6.34 | ||
65 | 75.5 | 3.8 | 6.64 | 6.84 | 4.50 | 7.88 | 8.12 | |||
80 | 88.5 | 4.0 | 8.34 | 8.59 | 4.75 | 9.81 | 10.10 | |||
100 | 114 | 4.0 | 10.85 | 11.18 | 5.00 | 13.44 | 13.84 | |||
125 | 140 | 4.5 | 15.04 | 15.49 | 5.50 | 18.24 | 18.79 | |||
150 | 165 | 4.5 | 17.81 | 18.34 | 5.50 | 21.63 | 22.28 |
Quality first: production and inspection in strict accordance with
production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere
service can last for a long time.
Shandong Zhengde Metal Manufacturing Co., Ltd. is a production and sales company integrating hot-rolled steel
coils, cold-rolled steel coils, galvanized steel coils,
color-coated steel coils, section steel, steel pipes, steel wires,
metal mesh, stainless steel, aluminum, copper and other metal
products integrated large enterprises. Five production and sales
bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan
and Tai'an, with more than 100 production lines, 4 nationally
recognized laboratories, 2 technical engineering centers, and 5
enterprise technology centers. Products are exported to more than
50 countries and regions such as North America, South America,
Europe, Africa, Oceania, Middle East, and Southeast Asia.
FAQ
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express
shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade,length, width, thickness, surface
treatment requirement should you have and quantities you need to
purchase.
Q3:It's my first time to import steel products, can you help me
with it?
A:Sure,we have agent to arrange the shipment, we will do it
together with you.
Q4:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin,
Qingdao, Ningbo ports, you can specify other ports according to
your needs.
Q5:What about product prices information?
A:Prices various according to periodic price changes of raw
materials.
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30%
T/T in advance ,balance before shipment or based on BL copy or LC
at sight.
Q7:Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to
your specification and drawing.
Q8:What are the certifications for your products?
A:We have ISO 9001, MTC, third parties' inspections are all
available such SGS, BV ect.
Q9:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be
longer if the quantity is extremely large or special circumstances
occur.
Q10: How many countries you already exported to?
A:We have exported to America, Canada, Brazil, Chile, Colombia,
Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya,
Ghana,somalia and other African countries.Our export experience is
rich, we familiar with different market demands, can help customers
avoid a lot of trouble.
Q11:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit
our factory.
Q12:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality
before packaging, and unqualified products will be destroyed and
customers will be well evaluated.
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