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galvanized steel coil
galvanized steel coilIn addition to using color-coated hot-dip galvanized/aluminum coil as a substrate,but also can use cold-rolled,hot-dip steel coil and aluminum coil as the substrate.adopting high technology and advanced equipment,the base material to go through degreasing,cleaning,surface treatment film.Organic polymer resin and then coated with primer and top coat consisting of senior coated steel.Fuyuan merged into overall good quality board.the color-coated with a broader applicability,decorative,molding,corrosion resisitance,weather resistance and other characteristic.
1,Base material:hot-hip galvanized steel,piated AL cold rolled, electricity degree zinc.
2,product process:
decoil-entry looper-chemical and processing-precise paint-oven-cooling-entry looper-take out color coated steel-delivery
3,application:structure buildings, household appliance,indoor/outdoor decoration,furniture,transportation and others.
4,specification:size range:thickness:0.18mm-1.0MM width:900-1250mm(1000and1200mmas usual sizes)length:according to the customer's requirement.
5,color:all RAL color(standard international color or customer's requirement.
6,packaging:standard export packing or as the customer's requirement
7,technique:hot-dip galvanized hot rolled
8,feature:excellent performance of decoration ,molding,corrosion resistance,weather resistance and other characteristic.
9,capacity:more than 100000 tons one year
10,performance testing of color coated steel
item | method | consequence |
Tensile test | Tic-Tac-9mm 5mm cross cupping | No damage |
bending test | T≤3 | No damage |
boiling test | 100°C boiling 1 hour | No damage |
Water resistance | 1000hours immersion in 40°C(edge) | No damage |
Moisture resistance | 50°C90%100hours(edge) | No damage |
Fire resistance | Samples were placed in incubators, remove greenhouse cooling, and then test the adhesion | Long-term environment in 100°C |
Fire extinction | Liquefied petroleum gas or natural gas burner | Immediately turn off |
Drug resistance | 10%hydrochloric acid, saturated calcium,10%H2SO4,10%NAOH,gasoline,ethanol | No color and trace change |
Salt spray test | 5%Nacl,35±2°C,500hours | No damage |
11,coating performance test standard:
Test item | Positive standard | Back standard |
Dry film thickness(um) | 14-16 | 7-9 |
Glass(60degree) | High±5,Medium 40±5,low30±5 | 35±5degree |
T bending | 3 | 3 |
Impact strength | 6.3 | 5.8 |
Pencil hardness(H) | H | H |
MEK(Per) | >100 | >100 |
Cross cut | 0 class | 0class |
Acid resistance | 50%H2SO4 immersion in300hrs,no color ,wrinkling, fading, change | |
Alkali resistance | 50%H2SO4 immersion in300hrs,no color ,wrinkling, fading, change | |
Aging-resistance | 1st class loss of color and glass | |
Salt spray | 500 | |
12,mini order:25T
13,delivery time:4-5weeks
14,payment:LC,T/T FOB Shanghai or Ningbo por
15,lifespan:more than 10 years
16,we are manufactures'direct dealer which supply all kind of different color steel with the best quality and service but the most competitive price.if you know more about our products ,feel free to ask me ,welcome to enquiry.
prepainted roofing steel sheet in coil