HIGH QUALITY OF COLD ROLLED HARD STEEL COIL FROM CHINA

HIGH QUALITY OF COLD ROLLED HARD STEEL COIL FROM CHINA System 1

HIGH QUALITY OF COLD ROLLED HARD STEEL COIL FROM CHINA

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 5000 m.t./month

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Quick Details

Standard: ASTM, GB, JIS
Grade: SGCH
Thickness: 0.13mm-0.8mm
Place of Origin: TIANJIN, China (Mainland)
Brand Name: ZG
Model Number: ZG
Type: Steel Coil
Technique: Cold Rolled
Surface Treatment: HARD
Width: 750mm-1250
Length: 0

Packaging & Delivery

Packaging Details:	seaworthy standard export packing .CARDBOARD SLEEVES, STEEL SHEET WRAPPED OUTSID, FIXED BY STEEL BELT
Delivery Detail:	Within 30-40 days upon receit of you prepaid money

Specifications

1,SGCH, regular spangle
2,the second largest supplier in Guan County
3.below 0.16mm is our main products.
4.JIS G3302
5.ASTM

Galvanized steel sheet /coil features:
1. Zinc coating :0g/m2
2. Thickness:0.13-0.8mm
3. Width:750-1250mm(750-762mm,900-925mm, 1000, 1200-1250mm the most common)
4. Coil id:508mm
5. Coil weight: 3-5MT or more (as required)
6. Surface:OILED
7. Tolerance:Thickness tolerance: +/- 0.02mm;
Width tolerance: +/-5mm;
Zinc tolerance:+/-10gsm.
8.Payment condition: Prepay 30%, pay the rest before shipment, via TT
8. Application: As to excellent cold bending molded manufacturablity, good decoration effect, strong anti-corrosion ability, galvanized steel coils and are also pollution-free and easily recycled. Accordingly, they can be used as final products and basic plates of color coated steel coils and widely applied in construction, home appliances, decoration, ect.

HIGH QUALITY OF COLD ROLLED HARD STEEL COIL FROM CHINA

Q:More specifically steel wire (around 1/8 diameter). I'm doing a science fair project where I'm testing if concrete encased in steel has more fire resistance than steel by itself. However, I have no idea what the dimensions of concrete encased steel is so I can't scale down. And if I did have the dimensions I wouldn't know how to encase it around the steel wire (do I just poor concrete over it (heck I've never even used concrete)? Thanks for any help.: If you're designing this structure, I recommend not filling it with concrete. It will do very little for stiffness (steel is 7-8 times stiffer than concrete), almost nothing for strength (unless buckling of the steel cylinder is an issue), and will add lots of unnecessary weight.

Q:Can steel coils be coated with copper?: Yes, steel coils can be coated with copper. This process, known as copper coating or copper plating, involves applying a thin layer of copper onto the surface of the steel coils to enhance their corrosion resistance, conductivity, and aesthetics.

Q:What are the different types of steel coil edge finishes?: There are several types of steel coil edge finishes, including mill edge, slit edge, and sheared edge. Mill edge refers to the natural, untreated edge of the steel coil as it comes from the mill. Slit edge is created when the coil is slit into narrower widths, resulting in a smooth, burr-free edge. Sheared edge is produced when the coil is cut using mechanical shearing, resulting in a slightly rougher edge compared to slit edge.

Q:I know that mild steel is more brittle than cast iron....but that is all.......please help??Thank you in advance......Ruby:D: Mild steel is iron that has had most of the carbon removed in an open hearth furnace or a Bessemer converter. It is mainly the carbon content that makes iron brittle (iron is brittle, not steel).

Q:How are steel coils used in the production of shipping vessels?: Steel coils are used in the production of shipping vessels as they are shaped and formed into various components such as hulls, decks, and bulkheads. They provide strength, durability, and flexibility to the structure, ensuring the vessel can withstand harsh marine conditions and carry heavy loads.

Q:Moravia’s coal and steel industries face challenges because they _____. a.do not run efficientlyb.have run out of resourcesc.have a declining work forced.have not privatized: As someone who have lived in northern Moravia at industrial steel and coal city of Ostrava, the closest point is b), but it is questionable. I am not sure how to compare efficiency of largest steel mill in Czech Republic in comparison to China which is the biggest exporter, but Czech steel factories were modernized and run more efficient that 25-35 years ago, and been privatized and owned by Mittal. The workforce had been shrinking, so not exactly sure what that c is pointing to (aging of workforce, size of it, or quality). Northern Moravia is a part of larger coal basin that extend to Poland with large coal deposits. This was foundation for the steel industry in the 1800's together with large ore deposits that was mined in proximity of the Beskidy mountains less than 25 miles from Ostrava. The iron ore mines had been depleted for several decades, and since the late 70's when communists run the country, they were already importing Soviet iron ore. Coal mining within city of Ostrava cased to exist in the 1990's due environmental issues, and also cost. The mines were getting deeper and more costly to operate and there is no more mining within Ostrava. Couple mines are still in operation in Karvina county which is next to Ostrava. Currently the coal deposits south of the city were not opened due environmental issue which would mean destruction of third largest mountain range in the country. Therefore, my conclusion is is b, as the ore and coal resources been shrinking. The biggest challenge not mentioned here is of course competition from Russia, Ukraine, and China, which can produce steel much cheaper.

Q:What are the different types of surface treatments for steel coils?: Steel coils can undergo various surface treatments to enhance their appearance, protect against corrosion, and improve durability. Common treatments include: 1. Hot-dip galvanizing: Immersing steel coils in molten zinc creates a protective layer, offering exceptional corrosion resistance and resilience in harsh environments. 2. Electro-galvanizing: Electroplating a thin zinc layer onto the steel surface provides good corrosion resistance and enhances aesthetics. 3. Organic coating: Coating steel coils with organic materials like paints, lacquers, or polymer films offers corrosion, abrasion, and UV protection, while providing a wide range of color options. 4. Phosphating: Treating the steel surface with a chemical process forms a layer of phosphate crystals, improving coating adhesion and corrosion resistance. 5. Chromating: Also called passivation, this treatment involves applying a chromate conversion coating, enhancing corrosion resistance and offering a decorative finish. 6. Oiling: Applying a thin layer of oil to steel coils during storage and transportation prevents corrosion and can be easily removed before further processing. 7. Pickling: Immersing steel coils in an acid solution removes impurities and scale, improving surface finish and preparing the steel for subsequent processing or coatings. 8. Tin plating: Electroplating a layer of tin onto steel coils provides excellent corrosion resistance, solderability, and aesthetic appeal. These treatments are just a few examples of the many available for steel coils. The choice depends on specific application requirements, including desired appearance, corrosion resistance, and environmental conditions.

Q:How many percent carbon in low alloy steel and high alloy steel: Steel is basically an alloy of iron and carbon that has more than 0% carbon and less than 2% carbon. The alloy of carbon and iron with more than 2% carbon is considered cast iron. The bessemer process converts cast iron to steel by injecting oxygen into molter cast iron to burn off the excess carbon. Steel is also modified by adding additional elements like silicon, molydenum, vanadium, chrome, etc.

Q:What is the minimum diameter of a steel coil?: The minimum diameter of a steel coil can vary depending on the specific requirements and manufacturing processes, but it is typically around 4 inches or 100 millimeters.

Q:Hello... I'd like to know where I can find proof of this answer as well please. My own searching didn't come up with anything concrete.I'd like to know how much the ambient temperature inside of a hollow steel tube would rise by if the outside of that tube was exposed to an 1100 degree flame for a period of 3 seconds.If specifics help, they are something along the lines of 3.125 O.D. tube, 0.35 wall thickness. High grade steel, can't be more specific than that sorry.Thanks for any answers!: I can asnswer this from practical experience. If the tube is sealed, temperature would rise approx. 25 deg F. If the tube were open the temperature would be less that a 10 deg F rise. The exact answer can be found in any book on thermodynamics.

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