• JIS G 3302 GALVANIZED STEEL COILS WITH HIGH QUALITY System 1
  • JIS G 3302 GALVANIZED STEEL COILS WITH HIGH QUALITY System 2
  • JIS G 3302 GALVANIZED STEEL COILS WITH HIGH QUALITY System 3
  • JIS G 3302 GALVANIZED STEEL COILS WITH HIGH QUALITY System 4
JIS G 3302 GALVANIZED STEEL COILS WITH HIGH QUALITY

JIS G 3302 GALVANIZED STEEL COILS WITH HIGH QUALITY

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25.00 m.t.
Supply Capability:
10000 m.t./month

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Prime Galvanized steel coil

Packaging & Delivery

Packaging Detail: seaworthy export package

Delivery Detail: on request

Specifications

1.      more than 10 years’ experience on this field

2.  advanced equipments

3.  competitive price

4.  soonest delivery 

                       Product Description :

Commodity

Hot dip galvanized steel coil 

Technical Standard: JIS 3302 / ASTM A653 / EN10143/ GB/T 2518

GradeDX51D/ S250,280,320GD,SGCC,SGHC,SGH340,SGH400,SGH440,G450,G550

Types:Commercial / Drawing / Deep Drawing / Structural quality

Width: 900mm/1000mm/1219mm/1200mm/1220mm/1250mm

Thickness: 0.2mm~4.0mm

Type of coating: galvanized 

Zinc coating: Z40-275g/m2,Z40-Z450g/m2

Surface treatment: zero spangle / regular spangle/ big spangle

ID coil: 508mm or 610mm

Coil weight: 3-10/MT per coil

Package: Properly packed for ocean freight exportation in 20''container

Application:: home appliances, constructions, building, machineries

Our Advantages :

 

1. Expertise:
   
More than 10 years of manufacture: we know how to properly handle every step of production.
2. Competitive price:
 We can offer competitive prices to our customers.
3.  Accuracy:
 
We have excellent technicians and leaders, which can ensure our products are exactly what you want.
4.  Materials:
 All galvanized steel coils are made of high-quality raw materials.
5. 
 Certificate:
 Our products are certified by ISO9001.
6. Productivity:

 
We have large-scales of production lines,, which can guarantee all your orders will    be finished in earliest time.

Hr CGL Technical Process:

Coil loading-> uncoiling-> cutting-> welding-> entry accumulator-> Heating and deoxidization-> galvanizing-> air cooling->water quenching-> air dryer-> tension leveler-> Passivation->air dryer->exit accumulator-> oiling-> cutting-> recoiling->coil unloading-> packing

The furnace heating style: improved Sendzimir heating technology

Hourly output: max.76.3t/h

Process after coating: tension leveling, Passivation or oiling

Our Service

 

Our quality 

Test Equipments of Prepainted Galvanized Steel Coil Salt-spray tester; Atomic absorption spectrophotometer; Rockwell typer hardness tester; Tensile test machine; Metrohm titration; Laboratory Bend test machine.

 Our packing

 

Properly packed for ocean freight exportation in 20''container, galvanized metal fluted rings on inner and outer edges, galvanized metal & waterproof paper wall protection disk, galvanized metal & waterproof paper around circumference.

R&D department 

R&D department concentrates on researching and developing reliable products with best quality. The quality department test and control every process of production to guarantee the best quality of products


Q:Is 440 steel relatively strong or weak?
Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts. Grades 440A and 440B are identical except for slightly lower carbon contents (0.60 - 0.75% and 0.75 - 0.95% respectively); these have lower attainable hardnesses but slightly higher corrosion resistances. Although all three versions of this grade are standard grades, in practice 440C is more available than the A or B variants. A free-machining variant 440F (UNS S44020) also exists, with the same high carbon content as 440C. Again this grade is not readily available in Australia. Martensitic stainless steels are optimised for high hardness, and other properties are to some degree compromised. Fabrication must be by methods that allow for poor weldability and usually also allow for a final harden and temper heat treatment. Corrosion resistance is lower than the common austenitic grades, and their useful operating temperature range is limited by their loss of ductility at sub-zero temperatures and loss of strength by over-tempering at elevated temperatures. Key Properties These properties are specified for bar product in ASTM A276. Similar but not necessarily identical properties are specified for other products such as plate and forgings in their respective specifications.
Q:How are steel coils packaged for shipment?
Steel coils are typically packaged for shipment by being tightly wound, strapped with steel bands, and then secured onto wooden pallets. The coils are often covered with protective wrapping or placed inside steel containers to ensure safe transportation and prevent damage or corrosion.
Q:What are the guidelines for handling damaged steel coils?
The guidelines for handling damaged steel coils typically involve inspecting the damage, assessing its severity, and determining if the coil is still safe to handle. If the damage is minor, it may be possible to repair or reinforce the coil. However, if the damage is extensive or compromises the structural integrity of the coil, it is recommended to contact a professional for further evaluation and potential disposal. Additionally, following proper safety protocols, such as wearing protective gear and using equipment suitable for handling heavy loads, is crucial when dealing with damaged steel coils.
Q:How are steel coils unloaded from a truck or ship?
Steel coils are typically unloaded from a truck or ship using various equipment and techniques. The unloading process depends on the type and size of the coils, as well as the available resources and infrastructure at the unloading site. For unloading from a truck, a common method involves the use of a forklift or crane equipped with coil hooks. The coils are carefully lifted and positioned onto the ground or a designated storage area. Alternatively, some trucks may be equipped with specialized roll-off trailers that allow the coils to be rolled off the truck bed. When unloading from a ship, larger cranes are often used due to the size and weight of the coils. These cranes can be located either on the ship itself or on the dock. The coils are lifted from the ship's cargo hold using specialized lifting hooks or spreader bars and carefully lowered onto the dock or a waiting truck. In some cases, a coil transfer car or coil trailer may be utilized to move the coils from the ship's cargo hold to the unloading area. These devices are designed to transport and position the coils safely and efficiently. It is worth noting that safety measures are of utmost importance during the unloading process. Proper securing of the coils, equipment stability, and adherence to weight limits are crucial to prevent accidents or damage to the coils, the truck, or the ship. Overall, the unloading of steel coils from trucks or ships involves the use of specialized equipment such as cranes, forklifts, and coil hooks. These tools, along with proper planning and safety precautions, ensure the efficient and safe transfer of the coils to their designated storage or transportation areas.
Q:How do steel coils contribute to the automotive manufacturing sector?
Steel coils are essential in the automotive manufacturing sector as they are used to produce various components such as body parts, frames, and suspension systems. The high strength and durability of steel coils make them ideal for ensuring the safety and structural integrity of vehicles. Additionally, steel coils are easily moldable, allowing manufacturers to create complex shapes and designs, contributing to the overall aesthetics and functionality of automobiles.
Q:benchmade mpr with m390 steel knife. Is it better than d2 s30v or 154cm steel?
From what I read M390 is relatively wear resistant, with very high stain resistance and good toughness. It is quite hard to qualify steel as better than other steel because it depends on many factors. E.g. for a small folder designed for delicate cutting D2 at high hardness would perform better, but if the environment is corrosive, like saltwater then M390 would be better. I'm not so sure about using stainless steels in large chopping style knives, but I've seen M390 used for them as well. Obviously hardness had to be lowered, which reduces edge holding ability, especially at low angles. Overall, it's a good steel, but if it will outperform S30V or D2 or 154Cm depends on heat treatment and blade geometry, knife designed use, etc.
Q:Is this a strong, durable piece of steel that can take abuse? I'm thinking about using it on a small project.
If you made up the right rigging you could probably suspend a Volkswagon with that, but certainly a refrigerator. It's flexible as steel goes - it's not rigid like tool steel, for instance. Since you ask about tempering and you are shopping at Home Depot, it should be just fine for a home project, if it looks like it will suit. Building a bridge or a machine tool, no.
Q:Explain your answers please. I was watching mythbusters and they bought a steel coffin over a wooden one because they thought it would hold more dirt. Now how come bridges that have been made of wood lasted way longer than steel bridges? Or rollercoasts for example.
Back when I was in school we used to have a contest comparing balsa wood bridge designs. The idea was to build the strongest bridge when derated for bridge weight. The strength test was that the 2-ft long bridge was placed between two tables and a garbage can was strung up to the middle of it. Then it was slowly filled with water until the bridge snapped. The can was weighed and divided by the bridge weight to get our scores. I don't see why you couldn't do this to compare wood vs steel. You could find how much load is needed to snap sample rods. The important point is that the rods should be nearly identical in dimensions between the two materials-- this means length and diameter. Also if you're measuring steel, you'd want to choose a relatively thin diameter or a long span or you won't be able to even bend it. Also while I'm pretty sure wood will snap, steel might bend gradually, so you'd have to decide how much deformation you would allow before calling the piece failed. Also if you take this approach be sure to wear safety glasses when running it. In fact it would be a good idea to put a metal shroud around the test structure.
Q:How are steel coils inspected for surface cleanliness using cleanliness tests?
Steel coils are inspected for surface cleanliness using cleanliness tests to ensure that they meet the required quality standards. These tests involve various methods to assess the presence of contaminants, such as dirt, oil, grease, rust, or scale, on the surface of the steel coils. One commonly used cleanliness test is the visual inspection, where trained inspectors visually examine the surface of the coils for any visible contaminants. They look for any signs of staining, discoloration, or foreign substances that may affect the quality of the steel. Another cleanliness test is the wipe test, where a clean cloth or wipe is used to wipe the surface of the steel coil. This cloth is then analyzed for the presence of contaminants using techniques like gravimetric analysis or solvent extraction. The amount of contaminants collected on the cloth can be measured, providing an indication of the cleanliness of the steel surface. Surface roughness tests are also performed to assess cleanliness. A roughness gauge is used to measure the roughness of the steel surface, which can indirectly indicate the presence of contaminants. If the surface roughness measurements are higher than the specified limits, it suggests the presence of contaminants affecting the cleanliness of the steel. In addition to these tests, cleanliness tests may also involve techniques like wetting tension measurement, water break test, or contact angle measurements. These tests evaluate the surface energy and wetting properties of the steel, which can be affected by the presence of contaminants. By conducting cleanliness tests, steel coils can be thoroughly inspected for surface cleanliness. These tests help in identifying any potential contaminants that may compromise the quality and performance of the steel. By ensuring the surface cleanliness of steel coils, manufacturers can provide high-quality products that meet the stringent requirements of various industries.
Q:I am reading the book The Cure For All Advanced Cancers by Hulda Regehr Clark.She writes for example: cancer can be caused by exposure to heavy metals, like nickel and chromium from stainless steel cookware. Stainless steel cookware releases chromium and nickel, two of the most carcinogenic metals.Are there any studies done measuring how much nickel and cadmium can be released from the regular use of stainless steel cookware?Is this a commonly accepted opinion that use of stainless steel cookware is dangerous?If not stainless steel, what kind of cookware to use? I heard that non-stick cookware also releases some harmful chemicals.
perfluorooctanoic acid is a chemical used to make nonstick cookware. It has been shown to cause cancer in lab animals. The epa has asked companies that use that chemical to phase it out of the cookware, just in case. But it has not been shown to cause cancer in humans. Stainless is not known to cause any type of health problems. Cast iron is healthier and anodized aluminum is great too.

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