The Galvanized Coating steel coils

Specifications The Galvanized Coating steel coils:

1.Erosion resistance

2.Excellent processing performance

3.Low production cost

  The Galvanized Coating steel coils  Product Description The galvanized Coating steel coils Introduction:                                                                           The galvanizing process produces a durable, abrasion-resistant coating of metallic zinc and zinc-iron alloy layers bonded metallurgically to the steel base and completely covering the work piece. No other coating for steel matches galvanizing’s unique combination of properties and advantages:   1. For most classes of steelwork, galvanizing provides the lowest longterm cost. In many cases galvanizing also provides lowest initial cost.   2. The galvanized coating becomes part of the steel surface it protects.   3. The unique metallurgical structure of the galvanized coating provides outstanding toughness and resistance to mechanical damage in transport, erection and service.   4. The galvanized coating is subject to corrosion at a predictably slow rate, between one-seventeenth and one eightieth that of steel, depending on the environment to which it is exposed.   5. Galvanizing’s cathodic protection for steel ensures that small areas of the base steel exposed through severe impacts or abrasion, are protected from corrosion by the surrounding galvanized coating.   6. An inherent advantage of the process is that a standard minimum coating thickness is applied.   7. During galvanizing the work is completely immersed in molten zinc and the entire surface is coated, even recesses and returns which often cannot be coated using other processes. If required, internal surfaces of vessels and containers can be coated simultaneously. See ‘Design’   8. Galvanized coatings are virtually ‘self-inspecting’ because the reaction between steel and molten zinc in the galvanizing bath does not occur unless the steel surface is chemically clean. Therefore a galvanized coating which appears sound and continuous is sound and continuous. See ‘Metallurgy of galvanizing’ and ‘Inspection of galvanized products’.   9. Galvanizing is a highly versatile process. Items ranging from small fasteners and threaded components, up to massive structural members can be coated. See ‘Galvanizing Process’ and ‘Design’.   10. The mechanical properties of commonly galvanized steels are not significantly affected by galvanizing. See ‘Mechanical properties of galvanized steels’.   11. Galvanizing provides outstanding corrosion performance in a wide range of environments. See ‘Performance in various environments’.   12. ‘Duplex’ coatings of galvanizing-plus-paint are often the most economic solution to the problem of protecting steel in highly corrosive environments. Such systems provide a synergistic effect in which the life of the combined coatings exceeds the total life of the two coatings if they were used alone. See ‘Painting galvanized steel’.     The galvanized coating Steel Coils Specifications                                                                     

Specification	JIS G3302 1998					ASTM A653M / A924M
	SGCC SGC 340 400 440 490 570	SGCH	SGCD1 SGCD2	SGCD3	SGHC SGH 340 400 440 490	CS Type A B C FS Type A B	SS Grade 230 255 275 340	SS Grade 550	DDS
Thickness of Base Steel (mm)	0.20 | 2.00	0.23 | 2.00	0.30 | 2.00	0.60 | 1.60	1.2 | 4.50	0.20 | 4.50	0.20 | 4.50	0.23 | 2.00	0.30 | 4.50
Regular Spangle	Z08, Z12, Z18, Z20, Z22, Z25, Z27, Z35, Z45		Z08 | Z35		Z10 | Z45	Z120, Z180, Z275, Z350, Z450			Z90 Z120 Z180 Z275 Z350
Minimized (Zero) Spangle			Z08 | Z35		Z12 | Z35	Z120, Z180, Z275, Z350
Galvan- nealed	F10, F12, F18					ZF120, ZF180
Surface Finish	Regular Spangle, Minimized Spangle, Extra Smooth and Galvannealed
Surface Treatment	Chromating Treatment, Oiled or Resin Coated (anti Finger Print)
Coating Thickness	Min. Single Side Coating Thickness: 50 g/m2 Max. Single Side Coating Thickness: 225 g/m2
Remarks	1.Tolerance for thickness, width, flatness and so on… can conform to the requirements of JIS G3302 or ASTM A653M / A924M. 2.All products with thickness 2.0mm and under can be skin passed. 3.The specification for thicknesses under 1.6mm for hot-rolled base metal according to JIS G3302 will be the same as for thickness 1.6mm and over. 4.Coil inside diameters can be either 508mm or 610mm, maximum coil outside diameter is 2000mm. Weight of a single coil can be from 5 to 30 metric tons. 5.Please contact Yieh Corp. for Special specifications. 6.The specification of ASTM such as A653M, A792M, A875M / A924M and etc. have been updated to the latest revisions.

  The Galvanneal Coating Steel Exhibition:                                                                                      Packaging & Shipping   The Coating Galvanneal Steel Packing:                                                                                      Our Services Our Services:                                                                                                                               We provide unmatched services for Steel Fabrication and Warehousing Services. We provide design and installation of pallet racking, industrial shelving, multi-level structural mezzanines and more. We also manufacture smaller-scale storage and workspace solutions, including department storage. We are licensed service providers and our steel fabrication services involve the cut-to-length and slitting services. We provide services for the specific requirements of our esteemed clients.   Company Information   Company profile:                                                                                                                                                   Certification                                                                                                                    

Company  Certification	Certificate Authority
Stainless steek Processing Chamber of  Commerce of Tianjin-president enterprise	Tianjin Development and Reform Commission  and Tianjin Federation of Industry and Commerce
Quality revitalization demonstration enterprises  and demonstration products of China	Technical Supervision of ChinaTianjin branch and The northern survey planning firm
Recognized Satisfaction Unit	Social Investigation Office of China
Administrative efficiency supervision posts	Tianjin Supervision Bureau and  Tianjin Federation of Industry and Commerce
BM TRADA	Testing and certification company of England
Additional remark	More certificates can be supplied as your request

                                                                                                                                                                            FAQ   Q:  Why  Galvanize                                                                                                                                                   A: No other protective coating for steel provides the long life, durability and predictable performance of hot dip galvanizing. An alloy of its steel base, a galvanized coating is unique in matching the design and handling characteristics of steel.   As asset management and life-cycle costing become even more essential, after fabrication galvanizing provides the facility to design for a predictable, engineered result.   Galvanizing is a once only process, committed to the concept of the maintenance-free use of steel, ensuring long service life and virtually eliminating disruptive maintenance.   This long-term protection is well documented world-wide in terms ahead of any other protective coating, and galvanizing continues to find new applications in almost every field of engineering.       Q: Benefits of Galvanization                                                                                                                                   A:Zinc protects steel in two ways. First, it is highly resistant to rust; iron, a major component of steel, reacts very easily with oxygen and moisture and will eventually disintegrate. The layer of zinc on the surface prevents those elements from reaching the steel so quickly. It also develops a patina — a layer of zinc oxides, salts, and other compounds — that offers further protection. Zinc is also extremely durable and scratch resistant, and has a satiny appearance that many find attractive.   The outer layer also protects the steel by acting as a "sacrificial layer." If, for some reason, rust does take hold on the surface of galvanized steel, the zinc will get corroded first. Even in areas where the surface is scratched or damaged, the surrounding zinc will still corrode before the steel does. The lifespan of galvanized steel varies, but industrial steel with a 3.9 mil (0.0039 inches or 0.09906 mm) thick coating can last more than 70 years without maintenance under average conditions.   Q: Uses                                                                                                                                                                      A: Galvanized steel can be found almost everywhere. Many individuals live in steel frame houses, and buildings are often made with galvanized steel roofs. There are multiple steel parts in cars that help protect them from the weather, and it's used in many marine applications due to its ability to withstand the salt and the elements. Besides being inexpensive, durable and effective, this metal is also popular because it can be recycled and reused multiple times.     Q: Disadvantages                                                                                                                                                     A:There are relatively few disadvantages to galvanization, but it's not a good method for protecting all steel items. Some objects cannot be hot-dipped, often because they are too large or too small, and other forms of galvanizing often are not as protective and long-lasting. Eventually, the zinc will be corroded, although how long this takes depends on the thickness of the coating and the environment. Galvanized steel has a much shorter lifespan when it's regularly exposed to rain or seawater.   Galvanized steel that is cooled too slowly or stacked together before they have cooled completely can also have the outer zinc layer peel away. In some cases, small gaps can form between the zinc and the underlying alloy, which can also cause peeling. When a very thick coat of zinc is applied, it can also become brittle and flake off.     Q: Alternatives to Galvanization                                                                                                                             A: Some metal items cannot be galvanized effectively; the coating of zinc would be too thick on a small screw, for example. In many cases, stainless steel, made with chromium, is used instead. Unlike galvanized metals, stainless steel is not coated in the metal; chromium is part of the composition of the steel alloy.   contact:                                                                                                                                                  

We are specialized in Galvanized Coating steel coils , having own factory, warehouse and advanced devices. So we can produce and process the steel as your need, with guarantee of high quality and competitive price. Please contect me if you are interested, we will be happy to give you the details.  Welcome to visit the factory.

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