• Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability System 1
  • Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability System 2
  • Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability System 3
  • Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability System 4
  • Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability System 5
  • Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability System 6
Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability

Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability

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

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Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability

1.Structure of Cold Rolled Steel Description

The raw material of cold rolled steel coil/sheet is high quality hot rolled product, and after pickling continuous rolling, degreasing, annealing,skin pass,slitting and cut to length line etc. Along with it many kinds of new  technology and new process of global cold rolling production have been applied. Therefore the quality of the goods could be guaranteed. 

 

2.Main Features of the Cold Rolled Steel

• Smooth and flat surface

• Workability, durability 

• Excellent heat resistance performance

• High strength

• Good visual effect

 

3. Cold Rolled Steel Images

Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability

Chinese Best Cold Rolled Steel Coil JIS G 3302--Workability, Durability

 

4.Cold Rolled Steel Specification

Standard:AISI,ASTM,DIN,GB,JIS,JIS G3302 ASTM 653M EN10142

Grade: Q195~Q345

Thickness: 0.16mm~2.0mm

Width: 1250mm MAX

Coil weight:3-12 MT

 

5. FAQ of Cold Rolled Steel 

1.How to guarantee the quality of the products

We have established the international advanced quality management systemevery link from raw material to final product we have strict quality testWe resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

2. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-25 days, but the shipment will depend on the vessel situation.

 

 

 

 

Q: How is the thickness of a steel coil measured?
The thickness of a steel coil is typically measured using a gauge, which is a specialized tool specifically designed for measuring the thickness of materials. The gauge is pressed against the coil, and the reading on the gauge indicates the thickness of the steel.
Q: How are steel coils inspected for surface cleanliness during processing?
Steel coils are inspected for surface cleanliness during processing through various methods such as visual inspection, magnetic particle inspection, and ultrasonic testing. These techniques help identify any contaminants, defects, or surface irregularities that may be present on the coils, ensuring their quality and suitability for further processing or use.
Q: How do the sandpaper grits compare with different coarse levels of steel wool? For example, I'm finishing a homemade entertainment center, and using a tinted polyurethane, and it says to use 000 grade steel wool, but mine is #3, could I use some sanpaper instead, and what grit?
150 grit is standard for final sanding for poly. You could use 220 if you finish with something thinner like lacquer of if that's all you have. Even finer would work but not do much sanding.
Q: At what temperature does steel start to warp or soften.
Just okorder
Q: How are steel coils used in the production of agricultural storage tanks?
Steel coils are used in the production of agricultural storage tanks as they are shaped and welded together to create the tank's structure. The coils provide strength and durability to ensure the tank can withstand the weight and pressure of the stored materials.
Q: Why cold rolled stainless steel sheet is lower than cold rolled stainless steel coil?
304 stainless steel coil 2.0*1219*C spot price 18 thousand and 100 / ton, general tolerance at about 1.8mm.Coil price * actual thickness / reference thickness = flat price1.81*1.8/2=16.29
Q: What are the different methods of coil joining for steel coils?
There are several different methods of coil joining for steel coils, including welding, laser welding, stapling, and adhesive bonding.
Q: What is the market demand for steel coils?
The market demand for steel coils is influenced by various factors such as construction, manufacturing, and infrastructure development. As steel coils are widely used in industries like automotive, construction, and appliances, the market demand for steel coils is generally high. However, it can fluctuate depending on economic conditions, industry trends, and global demand for steel products.
Q: What are the common methods of inspecting steel coils for quality control?
Steel coils are inspected for quality control purposes using various methods. These methods involve visual inspection, dimensional measurement, and non-destructive testing. To inspect steel coils, visual inspection is a commonly used and straightforward method. This entails visually examining the surface of the coils for any visible defects such as scratches, dents, or discoloration. Visual inspection also includes checking the labeling, packaging, and identifying signs of corrosion or damage. Another crucial method to ensure quality is dimensional measurement. This involves measuring different dimensions of the coils, such as thickness, width, and length, to ensure they meet the required specifications. Tools like calipers, micrometers, or laser measurement devices can be utilized for dimensional measurement. Non-destructive testing (NDT) techniques are also widely employed in steel coil inspection. NDT methods enable the detection of internal and surface defects without causing damage to the material. Ultrasonic testing is a common NDT technique used for steel coil inspection. It works by sending high-frequency sound waves through the coil and analyzing the reflected waves to identify any defects. In addition, magnetic particle testing and dye penetrant testing are used to detect surface cracks or defects in the coils. Apart from these methods, other quality control practices may include chemical analysis to ensure the steel's composition meets the required standards, mechanical testing to assess the strength and hardness of the material, and corrosion testing to evaluate the coils' resistance to corrosion. In summary, a combination of visual inspection, dimensional measurement, and non-destructive testing techniques is typically employed to ensure the quality and integrity of steel coils during the quality control process.
Q: In terms of weight to strength titanium is stronger. But is it stronger than mild steel? If it is stronger, how much stronger is it?
Contrary to what we are usually told, Ti weight to strength ratio is better only for lower strength alloys. Steels match or best Ti and Al alloy ratio's for high strengths. Hard to answer this question, due to varying effects of cold work, alloying, and heat treatments. In general, traditional mild steels with little cold work are about equivalent strength to commercially pure Ti. Cleverly selected mild steels with extensive cold work have greater UTS (and really greater SMYS) than commercially pure Ti, and approach strength of the best Ti alloys. Ti starts at about 60ksi UTS for commercially pure, and goes up to about 200ksi for high strength alloys. Mild steel has varying definitions. Plain carbon steels use virtually no alloying materials other than carbon. Low carbon steels starting in the 1008 (0.08% carbon) range can be cold worked to 100ksi UTS, while 1030, the maximum carbon for mild steel per one source, can be cold worked up to about 180ksi. Simple steels can go about 215 ksi UTS at fairly reasonable cost with lesser cold work than I was using because producers can't make stronger steels with higher degrees of cold work. High strength alloys can best 350ksi at impressively high cost. (and they match best titanium alloy strength to weight ratio). They are why wide body aircraft have lots of steel - landing gears, flap mechanisms, etc. Don't know about cold working Ti though. It doesn't seem to be done much, but difficult to find info.

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