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Cheap Alternatives to Galvanizing Sheet Steel?
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(Materials)
(OP)
9 Aug 12 11:24Is anyone aware of any cheap alternatives to galvanized sheet steel? Normally we use a G90 gauge 12 steel, but we are trying to diversify our product line by offering a more corrosion resistant product for fairly cheap. Is there an alternative to galvanizing that will offer greater corrosion protection that is also affordable? Ideally, we would like to have the large coils of steel pre-coated before they arrived. I'm just looking for ideas here so start doing some research so anything would be helpful.
Thanks,
Jeff
For more information, please visit galvanized coil supplier.
(Materials)
9 Aug 12 12:05In a word, no, if something provided better corrosion resistance at a lower cost than HDG, it would be used.
Nick
(Materials)
(OP)
9 Aug 12 12:09I'm not looking for lower, just something on the same order of magnitude. More expensive is fine, just as long as it's reasonable. I'm looking for something to provide better corrosion resistance for a slight increase in price (but still less than stainless).
(Materials)
9 Aug 12 12:20Have you investigated zinc-iron, zinc-nickel, or zinc-aluminum coatings? These are continuously applied, either by the hot-dip process, or by electrolytic processes. Steel coils can also be purchased with pre-applied organic coatings (paint), that can be decorative, corrosion resistant, etc. Some coil products have both coatings.
2
mcgyvr(Mechanical)
9 Aug 12 14:29and what do you do with the edges/exposed base metal after fabrication of this sheet?
How about galvannealed coils?
(Mechanical)
10 Aug 12 07:28I would also think Zn-Fe ( i.e.type GALVALIA ) or Zn - Al ( GALFAN - ALUZINC ) as interesting alternatives.
They provide better corrosion protection and better colour adhension ( if so is required in your case ) than HDG.
Their prices are not signicantly higher than HDG and are available in coils and/or sheets.
(Materials)
13 Aug 12 08:52Greater corrosion protection at a moderate increase in price? G120, or G210 galvanized sheet are the obvious answers.
Corrosion protection is directly related to the thickness of the galvanizing. Thicker galvanizing = greater corrosion protection.
(Materials)
(OP)
13 Aug 12 13:04I am thinking about requesting samples for ZAM coating ( http://www.zam.biz/en/download/pdf/zam_02.pdf ). Does anyone have experience with this type of corrosion resistant coating? They claim that it is 10-20 times better in accelerated testing conditions than galvanized sheet steel, but you never know...
(Materials)
(OP)
13 Aug 12 13:05Also TomDOT mentioned a thicker coating such as G210, but we would like to explore different options other than galvanization for diversified marketing purposes
(Materials)
13 Aug 12 13:43mx,
Galvanizing is particularly weak in continuous-wet conditions, like most accelerated weathering. The zinc relies on forming a carbonate patina to slow corrosion - in continuous wet, you end up with more hydroxides, which are more soluble.
This makes any advertising comparisons using accelerated weathering extremely suspect. The ASTM B117 salt fog is particularly bad. Galvanizing which would last 40 years in normal outdoor conditions is likely to be gone in hours of B117.
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When engaged in the manufacturing industry of construction wire mesh and metal products, you will find that galvanized steel and stainless steel occupy most of the raw materials for product production. They are the two most commonly used metals in production, whether they are used as wires, tubes or Sheet. However, users (purchasers) who are not engaged in the metal industry often face difficulties when they have to choose one of them. Therefore, it is necessary to have a deeper understanding of the differences between various types of steel, which will help you make the most sensible and positive choice for your project.
Galvanized and stainless steel are two popular options. Although the two types of steel have similar appearances and can prevent rust and corrosion, there are important differences between them. In this article, Dongfu Wire Mesh will help you understand the differences between them and make you more clear about which type of steel you should choose for your project.
Want more information on galvanized steel coil suppliers? Feel free to contact us.