Cheap Alternatives to Galvanizing Sheet Steel?
Cheap Alternatives to Galvanizing Sheet Steel?
(OP)
Is 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
Thanks,
Jeff





RE: Cheap Alternatives to Galvanizing Sheet Steel?
Nick
RE: Cheap Alternatives to Galvanizing Sheet Steel?
RE: Cheap Alternatives to Galvanizing Sheet Steel?
RE: Cheap Alternatives to Galvanizing Sheet Steel?
How about galvannealed coils?
RE: Cheap Alternatives to Galvanizing Sheet Steel?
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.
RE: Cheap Alternatives to Galvanizing Sheet Steel?
Corrosion protection is directly related to the thickness of the galvanizing. Thicker galvanizing = greater corrosion protection.
RE: Cheap Alternatives to Galvanizing Sheet Steel?
RE: Cheap Alternatives to Galvanizing Sheet Steel?
RE: Cheap Alternatives to Galvanizing Sheet Steel?
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 1000 hours of B117.