Prepainted Galvanized steel coil

TIANHENG METAL MATERIALS offers a full range of galvanized products,sastify the demand for galvanized products in different fields.We sastify your need with our long warranty、technical support、and other value-added services.

FEATURES/ADVANTAGES

  • Standard:JIS G3302、ASTM A653M/A924M、ASTM A525、DIN1716 EN10327
  • Surface coating color:RAL colors
  • Back side coating color:Light grey,white and so on
  • Package:export standard package or as request
  • Type of coating process:Front:double coated&double drying.Back:double coated&double drying,single-coated&double drying
  • Type of substrate:hot dipped galvanized,galvalume,zine alloy,cold rolled steel,aluminium
  • Thickness:0.105-2.5mm
  • Tolerance:”+/-0/02mm
  • Coil ID:508/610MM
  • Zinc Coating Z50-275g/㎡；AZ30-150g/㎡
  • Standard:JIS G3302、ASTM A653M/A924M、ASTM A525、DIN1716 EN10327
  • Zinc Coating Z50-275g/㎡；AZ30-150g/㎡
  • Painting Coating Thickness:Top:8-35 um;Back:3-25um
  • Painting Color Style:2/1,2/2
  • Length:as required
  • Coating Introduction: Top paint:PVDF,HDP,SMP,PE,PU
  • Prime paint:Polyurethane,Epoxy,PE
  • Back paint:Epoxy,Modified polyester
  • Coil Weight：3-8tons
  • Package：seaworthy package
  • MOQ:25 tons（in one 20ft FCL）
  • Monthly Output:20000 tons

Production core strengths

  • Resistance to acid rain: Coating protection mechanism:It is very easy to form acid rain in the high level of industrial emissions or pollutants environment.Acidic penetration is formed in the surface of pre-painted steel,and accelerates the corrosion,forming blistering,peeling and so on.
  • Resistance ultraviolet rays:Coating protecting Mechanism:pre-painted sheet in ultraviolet or strong sunlight conditions,the costing will exhibit chalking degeneration manifested as discoloration and loss of gloss,lose paint quickly.
  • 3)Resistance to humid heat:Coating protecting mechanism:in hot and humid environments,high osmotic pressure of water vapor acceleretes penetration,forming the degeneration of painting film,then the corrosion of the substrate,with the phenomenon of bubbles and peeling.
  • 4)Resistance to low temperature:most of the paint can keep stable processing performance above 0 degree,but at alpine region,the temperature will be below 20-40 degree,normal paint will become brittle,bend cracking,or even lose paint,thus protection function is lost totally.

Our Advantage

  • Standard:JIS G3302、ASTM A653M/A924M、ASTM A525、DIN1716 EN10327
  • Annual Capacity 1200000 Tons Sales to 50 countries
  • Free Samples We can provide A4 size samples for free
  • Payment Type TT,LC at sight
  • Response Time Within one hour
  • Our Team Have 10 years steel export experience with professional service

SPECIFICATION

Mechanical properties of galvanized steel
Usage Grade Yield strength(MPa) Tensile strength(MPa)
Punching galvanized steel DC51D+Z – 270-500
DC52D+Z 140-300 270-420
DC53D+Z 140-260 270-380
Structure galvanized steel S280GD+Z ≥280 ≥360
S350GD+Z ≥350 ≥420
S550GD+Z ≥550 ≥560
 

 

Features

 Excellent corrosion resistance The steel sheet is covered with a uniform zinc-plated layer by controlling the amount of zinc coating.

The zinc-plated layer itself is chemically treated, which ensures excellent corrosion resistance.

 
Super Formability The raw materials in coil forms are continuously annealed, galvanized,and properly leveled,

granting final products superior formability.

 
Longer life With galvanization, a piece of industrial steel is expected to last more than 50 years in

averageenvironments, and can last over 20 years with severe water exposure

 
Type Electro galvanized steel sheet In the electro-galvanizing process, steel sheets are not heat-affected so they maintain the same workability

as that of hot-olled and cold rolled steel sheets.Electrogalvanized steel sheets have purezinc

layer with excellent ductility, but no brittle iron-zinc alloy layer, which may cause peeling off with the former sheets.