Hot Rolled&Cold Rolled Galvanized Steel Coil

Hot Rolled&Cold Rolled Galvanized Steel Coil

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 23 m.t.

Supply Capability:: 50000 m.t./month

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Product Description

Thickness: 0.16mm-1.20mm

Coil width:600mm-1250mm

Coil weight: 3.0-6.0MT

Surface finish : 60-120g/m2 zinc coating and any Ral code the customers requirment!

Spangle: Big Spangle,Small Spangle,Regular Spangle,Zero Spangle.

Steel grades: Q195-Q345,GR.A,GR.B, SPCC,SPHC,DX51D, ECT.

Standard: JIS G3302, JIS G3313, ASTM A653, GB/T2518-88, GB11253-89,ASTM A1008-2000,BS,ETC.

Packing: wrapped by plastic film and waterproof paper, and then fastened on wooden pallet.

Used in building material field,Pipe making, furniture making,others

Minimum order quantity : 25 tons

Delivery times : 20 days after received T/T or L/C

Payment terms : T/T or L/C ( or as your demand)

Supply abilty : 6,000 ton per month

Product Picture:

Hot Rolled&Cold Rolled Galvanized Steel Coil

FAQ:

Size	(0.13mm-5.0mm )(600mm-1500mm)coil
Steel Grade	JIS G3302 SGCC~SGC570,SGCH(FULL HARD-G550),SGHC~SGH540 EN 10346-DX51D+Z,DX53D+Z, S250GD~S550GD ASTM A653M CS-B, SS255~SS550
Coil Weight	3MT-14MT
Coil ID	508mm/610mm
Chemical Treatment	Chromated(Cr 3+,6+,0+)
Surface	Skin pass/non skin pass
Oil	Slight Oiled/Dry
Spangle	Regular/Zero/Big
Zinc Coating	Z40-Z300
Capacity	1,500,000MT/year

Q: I just bought a used Taurus 85 stainless 38 spl revolver, it's about 25 years old but looks like new. This is my first stainless steel gun. I'm wondering if there's any special things I need to be aware of or cleaning methods? I'm also wondering if stainless steel could rust? in theory stainless means it cannot get stained or rusty. I have a chrome bore AK, cleaning is always super easy, wondering of cleaning a SS revolver would be the same.: Yes, stainless steel will rust. It is not rust proof, it is rust resistant. You still should oil your gun after you shoot it.

Q: How are steel coils used in the manufacturing of agricultural implements?: Steel coils are used in the manufacturing of agricultural implements as they are shaped and formed into various components such as blades, tines, and frames. These components are then assembled to create durable and reliable equipment that is used for tilling, planting, harvesting, and other farming activities. The strength and versatility of steel coils make them ideal for creating robust and long-lasting agricultural implements.

Q: How are steel coils affected by global trade policies?: Steel coils can be significantly affected by global trade policies. Trade policies, such as tariffs and quotas, can impact the import and export of steel coils, influencing their availability and pricing in different markets. Changes in trade policies can lead to shifts in supply and demand, affecting the volume and cost of steel coil imports and exports. Additionally, trade policies aimed at protecting domestic industries may create barriers for steel coil imports, potentially affecting the competitiveness of steel coil manufacturers and suppliers.

Q: What are the different methods of tension leveling for steel coils?: There are various techniques available for tension leveling steel coils, each with its own benefits and applications. 1. Roller leveling: By passing the steel coil through a series of rollers under high tension, strategically positioned to exert pressure on the coil, this method effectively stretches and elongates the coil. It is commonly used for thinner gauge coils and effectively eliminates defects such as coil set, crossbow, and edge wave. 2. Stretch leveling: This technique involves subjecting the steel coil to a combination of tension and elongation. The coil is held by clamps at both ends and then stretched using hydraulic or mechanical devices. This process helps remove residual stresses, flatten the coil, and enhance shape control. Stretch leveling is particularly suitable for thicker gauge coils, effectively eliminating wavy edges and center buckle. 3. Temper rolling: By passing the steel coil through a series of temper rolls that apply pressure on the surface, this method is primarily used to improve the surface finish and enhance the mechanical properties of the steel. It also helps reduce coil set and improve flatness. 4. Skin pass rolling: After the primary leveling process, the steel coil is passed through a series of rolls that apply light pressure on the surface. This technique is typically performed to further improve surface finish, enhance flatness, and reduce surface defects such as scratches or marks. 5. Stretcher leveling: This technique involves clamping the steel coil at both ends and applying tension to stretch it. The stretched coil is then held in this position for a specific duration to allow for stress relief and shape correction. It is commonly used for thicker gauge coils and effectively removes defects like coil set, crossbow, and center buckle. Each tension leveling method offers distinct advantages and is suitable for different types of steel coils and specific requirements. The choice of method depends on factors such as coil thickness, desired flatness, surface finish, and the specific defects that need to be corrected.

Q: How are steel coils used in the manufacturing of transportation equipment?: Steel coils are used in the manufacturing of transportation equipment as they provide a durable and strong foundation for various components such as chassis, frames, and body panels. These coils are typically processed and shaped into specific forms to meet the design requirements of automobiles, ships, trains, and aircraft. The high tensile strength and ability to withstand heavy loads make steel coils an essential material in the transportation industry, ensuring the safety and reliability of the vehicles and equipment.

Q: Can't find it- this is for a physics experiment for youngs modulus done with a steel wire.: It depends on the type of steel and how the wire was made (e.g. whether it was drawn hot or cold, whether it was heat treated after it was drawn, etc). For mild steel the elastic limit is about 400 MPa. Note this is not the same as the breaking stress for the wire which will typically be significantly higher for a ductile material like steel. If you want to measure a stress-strain curve to find youngs modulus, make sure you measure several points at stresses below the elastic limit - for example try increasing the stress in increments of about 50 MPa.

Q: I understand that Stainless Steel is a low carbon steel having minimum 10.5% chromium content in it there r 60 different type of stainless steel. Kindly informa) Is this info correct?????b) Which stainless steel can get rusted or can have superficial rust????: Stainless steel is a generic term for a whole range (there are more than 60 types) of Fe-Cr alloys. They all contain some amount of C and some alloys include a good number of other alloying elements. In almost all cases, the materials have corrosion resistance due the Cr atoms that are in solid solution with the Fe matrix. Under corrosive conditions, the Cr forms a thin tight coherent layer of Cr-oxide. This Cr oxide coating prevents further corrosion so long as it is not chemically or physically removed. If the SS has been subject to mechanical abrasion, the corrosion resistance can sometimes be restored by a light exposure to nitric acid which passivates the surface, restoring the Cr-oxide layer. The carbon content is an important factor in corrosion preformance but so is the heat treatment. Under the wrong conditions and in different environments, all SSs can rust. One of the most common corrosion problems is sensitization which occurs in the heat affect zone (HAZ) around welds. If the C content is high enough and the heat is high enough, the Cr atoms in solid solution form Cr-carbides and are no longer available to form a protective Cr-oxide. The corrosion resistance can be restored by appropriate heat treatment.

Q: How are steel coils used in the production of steel containers?: Steel coils are an essential component in the production of steel containers. These coils, made from flat-rolled steel, are used to create the main body of the container. Firstly, the steel coils are unwound and fed into a rolling mill, where they undergo a series of processes to shape and form the steel. This includes heating the coils to a specific temperature to make them more malleable and easier to work with. The hot coils are then passed through a series of rollers that gradually reduce their thickness and lengthen them to the desired size. This process is known as hot rolling. Once the steel coils have been rolled to the required thickness, they are then cooled and cut into sheets. These sheets are then further processed to remove any imperfections or irregularities, ensuring a smooth and uniform surface. This is done through processes such as pickling, where the sheets are treated with acid to remove any scale or rust, and cold rolling, where the sheets are passed through rollers at room temperature to achieve the desired thickness and surface finish. After the sheets have been cleaned and smoothed, they are then formed into the shape of the container. This is typically done through a process called stamping, where the steel sheets are pressed into a mold using a hydraulic press. The mold determines the shape and size of the container, and the steel sheets are pressed against it with immense force, resulting in the desired container shape. Once the containers have been formed, they undergo various finishing processes such as welding, painting, and coating to enhance their durability, appearance, and resistance to corrosion. These final touches ensure that the steel containers are of high quality and meet the required standards for their intended use. In summary, steel coils play a crucial role in the production of steel containers by providing the raw material from which the containers are formed. Through a series of processes, the steel coils are shaped, cut, and formed into sheets, which are then further processed and transformed into the desired container shape. The result is a durable and reliable steel container that can be used for various applications across industries.

Q: How are steel coils used in the production of steel brackets?: Steel coils are used in the production of steel brackets as they serve as the primary raw material. The coils are processed through various manufacturing techniques such as cutting, bending, and welding to shape and form the brackets. The high strength and durability of steel coils ensure that the brackets maintain their structural integrity and can withstand heavy loads or harsh conditions.

Q: What are the different types of corrosion protection for steel coils?: There are various types of corrosion protection methods for steel coils. Some common ones include galvanization, which involves coating the steel with a layer of zinc; painting or coating the steel with corrosion-resistant materials such as epoxy or polyurethane; and applying a protective film or oil to create a barrier against moisture and corrosive elements. Additionally, using corrosion inhibitors in the form of chemicals or additives can also provide protection against corrosion. Ultimately, the choice of corrosion protection method depends on factors such as the expected exposure conditions and the desired level of protection.

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