ASTM A525 G90/Z275gsm GI Corrugated Roof Sheets Used Galvanized Steel in Coil from Shanghai

  ASTM A525 G90/Z275gsm GI Corrugated Roof Sheets Used Galvanized Steel in Coil  from Shanghai   Brief Introduction Galvanized Steel in Coil gets coated in layers of zinc because rust won't attack this protective metal. The most external layer is all zinc, but successive layers are a mixture of zinc and iron, with an interior of pure steel. These multiple layers are responsible for the amazing property of the metal to withstand corrosion-inducing circumstances. Zinc also protects the steel by acting as a "sacrificial layer." If rust does take hold on the surface of Galvanized Steel in Coil , the zinc will get corroded first. This allows the zinc that is spread over the breach or scratch to prevent rust from reaching the steel. For countless outdoor, marine, or industrial applications, Galvanized Steel in Coil is an essential fabrication component.   Production Flow Chart   The Protection Principle 1. Anodic reaction: Zn-2e=Zn2+ (The alloy coating loses electron, sacrificing itself in dissolution.) 2. Cathodic reaction: Fe2++2e=Fe (Fe gains electron reaction, being protected)   Specification 1. Thickness: 0.3-0.8mm 2. Width: 914-1250mm 3. Inner Diameter: 508mm 4. Weight of Steel Coil: 3-15MT 5. Coating Type: Pure Zinc 6. Available Dipped Layer: 50-150g/m2 7. Surface Finish Structure: Zero Spangle & Finishing Small Spangle 8. Available Surface Treatment: Passivating & Oiling & AFP & Filming   Mechanical Properties

Grades	Mechanical Property				Coating Adhesion
	Yield StrengthMPa	Tensile StrengthMPa	Elongation% ≥		Bending Center Diameter at Following Coating Weight (g/m²) (a=Plate Thickness)
			La=80mm b=20(mm)
			At Following nominal Thickness ( mm)
			≤0.7	>0.7	≤140/140	>140/140-175/175	>175/175
DC51D+Z	140-350	270-500	20	22	0a	1a	2a
DC52D+Z	140-300	270-420	24	26	0a	1a	2a
DC53D+Z	140-260	270-380	28	30	0a	1a	2a

    Vertical Packing     Horizontal Packing     Application 1. Architecture Roofs and outside walls of civilian and industrial buildings, garage doors, fencings and window blinds 2. Appliances Industry Outer clad sheets for washing machine, refrigerator, television, air conditioner and ventilation system, explosion-proof strip, solar water heater and appliance parts 3. Auto Industry Muffler, heat shields of exhaust pipe and catalytic converter, auto parts & accessories under the frame, signboard in highway 4. Industrial Instruments Electric control cabinet, industrial refrigeration equipment, automatic vending machine   Certificates   Quality Control & Test Instruments   Production Line   Factory Stockhouse   Factory Overlook   Superiority 1. Good Resistance to Corrosion 2. Qualified Processing Machinability 3. High Thermal Resistance 4. Excellent Reflectivity 5. Inexpensive and effective enough 6. Can be recycled and reused multiple times  

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