Cold rolled galvanized steel coil for roofing

Cold rolled galvanized steel coil for roofing System 1

Cold rolled galvanized steel coil for roofing

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 36 m.t.

Supply Capability:: 30000 m.t./month

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Packaging & Delivery

Packaging Detail:	Standard seaworthy export package
Delivery Detail:	25 days after recepit of 30% TT

Specifications

Cold roll galvanized coil
Thickness: 0.14-2.0mm
Width: 600-1250mm
Zinc coating:Z60-275g/sqm
ID coil:508/610

Cold roll galvanized coil

Thickness: 0.14-2.0mm
Width: 600-1250mm
Zinc coating:Z60-275g/sqm

The detailed information:

Commodity	Hot dip galvanized steel coil and sheet
Techinical Standard	JIS 3302 / ASTM A653 / EN10143
Grade	DX51D / DX52D/ DX53D/ S250,280,320GD
Types	Commercial / Drawing / Deep Drawing / Structural quality
Width	600-1250mm
Thickness	0.14-2.0mm
Type of coating	galvanized
Zinc coating	Z60-275g/m2
Surface treament	chromed / skinpass/ oiled/slightly oiled/ dry/ anti-fingerprint
Surface structure	zero spangle / minimized spangle / regular spangle/ big spangle
ID coil	508mm or 610mm
Coil weight	3-8 MT per coil
Package	Properly packed for ocean freight exportation in 20''containers
Application:	Industrial panels, roofing and siding for painting
Price terms	FOB,CFR,CIF
Payment terms	30%TT in advance+70% TT or irrevocable 70%L/C at sight
delivery time	25 days after recepit of 30% TT
Remarks	Insurance is all risks
	MTC will be handed on with shipping documents
	We accept the third party certificatation test

Q: The highest quality i have seen is 9260 and i want to know if there is a higher quality steel.: Types of steel are one issue. But the quality of steel no matter what type is even more important. The only way to be sure that you are getting a good blade is to buy from someone that already has a reputation for producing great blades. Stop the questions about who thinks what type of steel is best and investigate the steel blades offered by companies like Bugei Trading company. they have good blades. Opinions vary, but Bugei has proven that they make good swords. That is all that is needed to be known. Any questions you have are best directed to them, not here.

Q: What is the difference between regular steel stainless steel? Why does steel rust but stainless wont? Is stainless some kind of alloy or something? Any knowledgeable input would be great. Thanx!: There are many things in life that I wonder about. Being in the steel industry and selling stainless steel I have at one point in my life asked myself, why do they call it stainless steel? What makes it stainless? It doesn't take much to find out but here is a very brief synopsis of what makes stainless steel stainless so that you can check one more thing off the list in your quest for knowledge. Stainless Steel might or might not have been invented by a man named Harry Brearley in 1912. Steel has been around for hundreds of years but it hasn't always been stainless. Only after the exact combination of elements had been achieved did we start calling a certain type of steel stainless. His magic potion contained the keys to what is now called stainless steel. That being said, the true inventor of stainless is still an ambiguous cloud at best. However, this isn't a discussion on WHO invented stainless but what stainless is and how it's actually stainless. Here is a great article posted by British Stainless Steel Association in regards to the history of stainless as a whole, see here. So what is in this magic potion that makes a steel not stain or rust? As most of us know if you leave regular steel or metal out in the elements it will rust, oxidize, or stain. Why does stainless not stain? When Harry Brearley Brearley created a steel with 12.8% chromium and 0.24% carbon, that was believed to be the first ever stainless steel. Chromium is the element in stainless that improves the corrosion resistance by forming a chromium oxide film on the steel. This very thin layer, is what allows the steel to be impermeable to rust or staining and when placed under the right conditions, it can also be self-repairing to a certain extent. There you have it. The answer is Chromium. Chromium is the element when mixed w/other elements in the proper amounts to form the thin layer that protects the steel from rusting, staining or corroding. Hope that helps you in your pursuit of knowledge.

Q: How are steel coils used in the manufacturing of agricultural sprayers?: Steel coils are used in the manufacturing of agricultural sprayers to create the frames and structures that provide stability and durability to the sprayer. The coils are shaped and welded to form the main body and support components, ensuring the sprayer can withstand the rigors of field use and maintain its functionality for extended periods.

Q: What are the challenges faced during steel coil processing?: Some of the challenges faced during steel coil processing include ensuring proper alignment and feeding of the coils into the machinery, handling the heavy weight and size of the coils, managing the high temperatures involved in processing, preventing surface defects or damage to the steel, maintaining consistent quality throughout the process, and minimizing material waste and scrap.

Q: What are the various surface finishes available for steel coils?: Steel coils offer a range of surface finishes, each with its own properties and uses. Some commonly used finishes include: 1. Hot rolled: Steel is rolled at high temperatures, resulting in a rough surface. This finish is great for structural applications like construction materials and industrial machinery. 2. Cold rolled: Steel is rolled at room temperature, creating a smoother surface. It is commonly used in automotive and appliance manufacturing due to its superior finish and accuracy. 3. Galvanized: Steel is coated with zinc to protect against corrosion. Galvanized coils have a shiny appearance and are suitable for outdoor applications such as roofing and fences. 4. Electro-galvanized: Coated with a thinner layer of zinc through an electroplating process, these coils offer good corrosion resistance. They are commonly used in electrical appliances, automotive parts, and construction. 5. Pre-painted: Coated with paint or polymer film, pre-painted coils provide both corrosion protection and aesthetic appeal. They are extensively used in construction for roofing, cladding, and wall panels. 6. Stainless steel: Stainless steel coils have unique properties, including corrosion resistance, heat resistance, and chemical damage resistance. They are ideal for industries like food processing, medical equipment, and marine applications. These examples showcase the variety of surface finishes available for steel coils. The choice of finish depends on factors such as the intended use, desired appearance, and level of corrosion resistance required.

Q: what do they use to make stainless steel?and can stainless steel be melted again and again without losing it's Specifications: The stainless steel is a family of ferrous alloys containing at least 11% chromium. The effect of this amount of chromium in steel in reducing corrosion is dramatic. There are many grades of stainless steels. By varying the chemical composition, heat treating, and cold-working, a wide range of properties is achieved. There are three types of precipitation hardening stainless steels: *martensitic types, which are supplies in the martensitic condition, are hardened by a simple aging treatment of the fabricated part. *Semi austenitic types, which are supplied in the austenitic condition, are transformed to martensite by special heat treatment before precipitation hardening. *the austenite in the austenitic types is precipitation hardened directly. The heat treatments of precipitation-hardening stainless steels are chosen to optimize mechanical properties. Precipitation hardening generally results in a slight increase in corrosion susceptibility and an increased susceptibility to hydrogen embrittlement.

Q: How are steel coils used in the manufacturing of automotive doors?: Steel coils are used in the manufacturing of automotive doors by being shaped and cut into the desired size and shape for the door panels. These coils are then formed into the appropriate curvature and attached to the door frame, providing strength, rigidity, and durability to the door structure.

Q: Are steel coils affected by temperature changes?: Yes, steel coils can be affected by temperature changes. Steel is a metal that expands when heated and contracts when cooled. This expansion and contraction can lead to changes in the dimensions and shape of steel coils. Additionally, extreme temperature variations can cause thermal stress, which may result in warping, cracking, or weakening of the steel coils. Therefore, temperature changes can have an impact on the performance and integrity of steel coils.

Q: I have a steel string, Yamaha acoustic guitar that I am learning to play at home. But at school I use a rented nylon string guitar. I like the feel of the nylon strings better then the steel strings and i was wondering if i can just switch strings or if i should just get another guitar. Can anyone help?: No, a steel string guitar is built and braced for the greater tension of steel strings, which means it's too heavily built to respond properly to nylon strings. It would sound awful. Besides, the slots in the nut are too narrow on a steel-string, the action is too low, and the bridge is made for ball end strings (most high quality nylon strings are plain end). And you would have to turn the narrow string posts on steel-string tuners forever to get anywhere with stretchy nylon strings.

Q: Can i make holes in iron and steel with somekind of drill bit. All i have is metal drill bits. Mabey like 68 of them but i dont know wich one to use and if they will penetrate.: If a drill bit will not do the job, you will have to go to something like EDM. But that is a lot of trouble, ask a machinist first.

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