• Prepainted Galvanized Rolled steel DX51D in CNBM System 1
  • Prepainted Galvanized Rolled steel DX51D in CNBM System 2
  • Prepainted Galvanized Rolled steel DX51D in CNBM System 3
  • Prepainted Galvanized Rolled steel DX51D in CNBM System 4
Prepainted Galvanized Rolled steel DX51D in CNBM

Prepainted Galvanized Rolled steel DX51D in CNBM

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
500000 m.t./month

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Description:

prepainted galvanized steel usually refers to have substrateprocessed with surface processed and coated then(roller coated )or bonded  organic thin film and baked, and it is able to be processed tofinal prodevtion .


specification

yield strength

(mpa) 280-320

tensile strength

(mpa) 340-390

elongation

20%-30%

reverse impact

9j

t-bending

≥2t

pencil hardness

≥2h

duration of salt spray test

500 h

bending at 180 degree

no crack, purling and fraction


Applications of Prepainted Galvanized Steel

It can be widely used in transportation, light industry, civil usage and farming. It is also the perfect building material in construction for making steel roofing, insulation panel, corrugate sheet, facade wall, shutters, T-bar and home appliance.

 

Packaging & Delivery of Prepainted Galvanized Steel

The packing of coils consists of anti-damp paper, PVC film, hardboard paper, steel box, strapped with steel strips, fitted with locks and edge protectors and guarantees the optimal condition of the delivered goods. Each coil can be additionally fitted with wooden/steel skids(eye to the side) or wooden pallets(eye to the sky).



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Prepainted Galvanized Rolled steel DX51D in CNBM

Prepainted Galvanized Rolled steel DX51D in CNBM



Q: what happened to all the steel beams from the WTC buildings? did anyone do any forensic analysisof any of the steel?
Some of the steel was recycled for sale to other countries where they aren't so picky about reusing building materials. NIST had 200 pieces of the steel for their investigation, which they returned last year. This was covered in the press. The rest of the steel was held at JFK international airport's Hangar 17. Much of it will be placed/has been placed in the new museum beneath the Memorial at the WTC site. Thousands of pieces are being given out for 9/11 memorials all over the world. Just about every day you read in the newspaper about another piece going here or there to this city or that city. Yes, a lot of the steel was tested for a number of chemical compounds. It had to be for safety reasons before storing it and giving it out. Depending upon what countries the recycled beams were sent to and their rules, it was sometimes tested at the ports of entry over there, as well.
Q: 1045 surgical steel.
There are many ways to sharpen knives. I guess your question is whether to use the steel that comes with knives, or a stone. Steels are only to straighten the edge, which is stropping. They won't sharpen a truly dull knife. For that you need a real sharpening system, of which a whet stone is one. The edge of a knife will get wavy with use - that's what the steel is for, to true it back up.
Q: How do steel coils contribute to corrosion resistance in products?
Corrosion resistance in products is achieved through a combination of factors provided by steel coils. Firstly, the coils are typically constructed from stainless steel, which contains a high concentration of chromium. This chromium forms a passive film on the steel's surface, acting as a protective oxide layer that prevents corrosion. Furthermore, this film possesses the ability to self-heal, regenerating itself if damaged or scratched, thereby ensuring continuous corrosion protection. In addition, the steel coils undergo a process known as galvanization, which involves applying a layer of zinc to the steel's surface. This zinc layer functions as a sacrificial anode, corroding preferentially to the steel. This sacrificial corrosion shields the underlying steel, effectively preventing the formation of rust and other types of corrosion. Moreover, steel coils can be coated with various protective materials like epoxy or polyurethane to enhance their corrosion resistance. These coatings act as an additional physical barrier, preventing moisture, chemicals, and other corrosive elements from reaching the steel surface. Lastly, steel coils can be manufactured with specific alloying elements such as nickel or molybdenum, further enhancing their resistance to corrosion. These alloying elements bolster the strength and durability of the steel, enabling it to withstand harsh and corrosive environments more effectively. In summary, steel coils contribute to the corrosion resistance of products by utilizing stainless steel, galvanization, protective coatings, and alloying elements. The implementation of these measures ensures that products retain their structural integrity and appearance over time, even under demanding and corrosive conditions.
Q: What is the average turnaround time for processing steel coils?
The average turnaround time for processing steel coils can vary depending on various factors such as the complexity of the process, size of the coils, and the efficiency of the manufacturing facility. However, in general, the average turnaround time for processing steel coils ranges from a few days to a few weeks.
Q: Can solution annealing be done on carbon and low alloy steels. please give an explanatory answer.
No. Carbon steel has two different crystal structures, FCC and BCC , depending on the temperature. when you heat steel up and then quench it, it locks the crystal structure into the BCC form. this makes it hard. whereas precipitation hardened austentic stainlesses remain BCC regardless of the temp, so the hardness change is not a function of thermally induced strain. you can anneal carbon steel but the thermal profile is closer to the precipitation profile of PH stainlesses than it is to the Solution annealing profile.
Q: How are steel coils used in the production of wind turbine components?
Steel coils are used in the production of wind turbine components for their strength and durability. These coils are typically formed into various shapes and sizes to create structural elements such as towers, frames, and foundations. The steel coils are also used to manufacture critical parts like rotor blades, gearboxes, and generator housings, ensuring the turbines withstand harsh environmental conditions and operate efficiently.
Q: What are the common industry standards for steel coils?
The common industry standards for steel coils include specifications related to dimensions, weight, chemical composition, mechanical properties, and surface finish. These standards are often set by organizations such as the American Society for Testing and Materials (ASTM), International Organization for Standardization (ISO), and the Steel Industry Associations.
Q: Two different shaving razors I'm looking to buy have different specs. in terms of the metals used for the blade; one being 1045 surgical stainless steel, the other 440 stainless (not sure if its A B or C, but probably 440A or 440B because it's not specified). So which one is better for the intended use as a shaving razor?
Type 440 combines such a high grade of cutlery steel, toughness and economy that it is actually known as razor blade steel. Browsing around (a lot) more, it seems that 1045 Surgical Steel is popular in straight razors used by barbers. These razors are honed by stropping with leather and last practically forever. From the above, I would guess that it might be easier to lose the edge on 1045, but also easier to re-sharpen it, that it won't easily knick because probably not so hard as 440. I'm not sure if it would be more expensive, unless it has a superior handle etc. So, I would expect to spend a little more effort over the lifetime of the 1045, maybe pay a little more for it, but have a longer lifetime. hth.
Q: What is the accuracy of steel tape inspection?
This is the smallest scale brothers precision measuring tools, minimum scale steel tape is mm, mm is estimated to read out the data, such as steel tape measure length is 12.5 mm, which is 12 in the steel tape on the scale with the number of 0.5.It was read out. So the accuracy is millimeters.
Q: The steel is orangish in colour and is mostly made of copper
Steel is an alloy of iron and carbon and optionally one or more of numerous other materials. Copper is normally not used, except sometimes in small percentages. Steel is never yellow or orange in color. Reactivity of steel depends on the materials it is alloyed with. Chromium and nickel with steel make stainless steel, which is much less prone to reactive than iron. .

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