No. 429, Yangguang Road, Yinzhou District, Ningbo, Zhejiang, China P.C.: 315175
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No. 429, Yangguang Road, Yinzhou District, Ningbo, Zhejiang, China P.C.: 315175
Yaoyi has been pursuing high-quality stainless steel coils since 1996.In order to achieve excellence in quality, our raw materials are purchased from the best steel company in the world: Baosteel. High-quality steel must be produced in a refining furnace, and the chemical composition of stainless steel must be stable. The chemical composition of stainless steel of different steel grades is different. We have a precision instrument–spectrometer to detect the accurate content of each metal and non-metal.
1. Yaoyi has an experienced R&D team, with an average of 5 R&D projects each year to improve production efficiency and product quality or overcome some technical problems.
2. Zhang yue, the General Manager of Yaoyi was graduated from Northeastern University with a major in metallurgy.He formed a professional team, which has been engaged in stainless steel manufacturing for more than 30 years.
3. The first concern of our stainless steel laboratory is the mechanical properties and chemical composition of the steel.
Stainless steel is a type of steel. Steel refers to steel that contains less than 2% carbon (C), and iron is more than 2%. The addition of chromium (Cr), nickel (Ni), manganese (Mn), silicon (Si), titanium (Ti), molybdenum (Mo) and other chemical composition in the smelting process improves the performance of the steel and makes the steel corrosion-resistant (That is, no rust) is what we often call stainless steel.
Stainless steel is the abbreviation of stainless and acid-resistant steel. It is called stainless steel that is resistant to weak corrosive media such as air, steam, and water, or is stainless steel; Corrosion steel is called acid-resistant steel. Due to the difference in chemical composition between the two, their corrosion resistance is different. Ordinary stainless steel is generally not resistant to chemical media corrosion, while acid-resistant steel is generally non-corrosive. The term “stainless steel” not only refers to a single type of stainless steel, but also refers to more than one hundred industrial stainless steels. Each stainless steel developed has good performance in its specific application field. Due to the difference in stainless steel chemical composition between the two, the former is not necessarily resistant to corrosion by chemical media, while the latter is generally non-corrosive.
The corrosion resistance of stainless steel depends on the alloying elements contained in the steel, especially cadmium. When the steel chemical composition is greater than 12%, the chromium in the steel will interact with the oxygen in the corrosive medium to form a very thin chromium-rich oxide film on the surface of the steel. This oxide film can prevent the steel the matrix is further corroded. When the chromium-rich oxide film on the surface of stainless steel is destroyed, a new chromium-rich oxide film can be formed immediately.
In addition to chromium, commonly used alloying elements include nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the requirements of various uses for the structure and performance of stainless steel.
The size range of precision stainless steel strip is different from that of conventional stainless steel foil. It refers to cold-rolled stainless steel foil with special ultra-thin specifications. The thickness is generally between 0.05-0.5mm, and it is called stainless steel foil below 0.05mm. Such products require high quality and difficult process control.
It is extremely difficult to produce the stainless steel foil. For example, 4 rolling passes and 24 hydraulic pressure are required to produce a stainless steel foil with a thickness of 0.02mm. Usually, one stroke requires six times of 180 tons of hydraulic pressure, and each time you have to check whether the steel surface has color difference and whether it is flat.
In the production process, the stainless steel foil is added with CU and TI, thereby reducing the solubility of sulfides mainly composed of Mn and S in acidic liquids, reducing cavitation and cracking, making Yaoyi stainless steel foil with good protection Corrosive.
Stainless steel foil has the characteristics of corrosion resistance, high temperature resistance and low maintenance cost. Stainless steel foil belongs to austenitic stainless steel, which has good processing properties and high toughness.
Ultra-thin stainless steel foil is widely used in aerospace, petrochemical, military nuclear power, new energy, high-end electronics, automobiles, textiles, computers, precision machining and other pillar industries and key fields, and has begun to enter the high-end electronics industry, folding displays, flexible solar energy High-tech fields of components, sensors, energy storage batteries.
Excellent strength and tensile properties enable Yaoyi stainless steel foil to withstand stronger external shocks. Good weldability allows Yaoyi stainless steel foil to be widely used in underwater electronic equipment, vehicle batteries and other products that require high water resistance.
All information you’re looking for about Stainless steel foil is right here. Whether you want to know the slit , what is the packaging standard or applications or production standards ,How can you tell good quality stainless steel foil? your answer is right here.
Read this guide to learn where to buy stainless steel foil.
Stainless steel refers to the steel whose total alloying elements exceed 2.5% and has the ability to resist atmospheric corrosion.
Stainless steel has excellent comprehensive properties, not only good corrosion resistance, but also high strength, high temperature and high pressure resistance, radiation resistance, low temperature resistance, weldability, ease of processing, high surface finish and good surface stability, etc.
Excellent performance, plays an irreplaceable role in many fields. In some industries, such as printing industry and decoration industry, it is more widely used.
Different from the thickness of conventional stainless steel foil, stainless steel with thickness ≤ 0.6mm and as thin as 0.02mm is generally called stainless steel foil. It belongs to the field of stainless steel austenite.
Its market characteristics are small and diverse, strict quality requirements, and technical content requirements. High, high value-added features.
Different from the thickness of conventional stainless steel Foil, stainless steel with thickness ≤ 0.6mm and as thin as 0.02mm is generally called stainless steel foil. It belongs to the field of stainless steel austenite.
Its market characteristics are small and diverse, strict quality requirements, and technical content requirements. High value-added features.
Packaging standards for stainless steel coils with a width of 2<width<10mm:
When the width is 2<width<10mm, a carton ring is used between the first stainless steel foil roll and the second stainless steel foil roll to prevent the two roll of stainless steel foil from squeezing and bumping. Each narrow material stainless steel foil inner layer uses a plastic ring. The outside is packed in a carton.
Wrap the outer tray cover with a carton ring. The bottom stainless steel foil roll is separated from the tray by a carton ring. Finally, put the whole into a wooden box and add foam particle filling. (See picture for details)
Packaging standards for stainless steel coils with a width >10mm:
Wrap it with moisture-proof canvas paper, put it on a pallet, and put it in a special wooden box that is fumigation-free, and add foam particle filler. (See picture for details)
| Serial no. | Related professions | Application parts | Thickness（mm） | AISI steel grade | DIS steel grade |
1 | Aerospace industry | Insulation | 0.05~0.13 | Sus 321 | |
| Helicopter connector | 0.1~0.40 | Sus 301 | |||
| Lining | 0.05~0.08 | Sus 304 | |||
| Honeycomb structure | 0.05~0.13 | Sus 347 | |||
2 | Computer industry | Spring | 0.05~0.13 | Sus 304 | |
| Decoder | 0.05~0.13 | Sus 304 | |||
| Terminal spring | 0.08~0.20 | Sus 301 | |||
| Etched components | 0.05~0.25 | Sus 304 | |||
| Button shrapnel | 0.05~0.13 | Sus 301 | |||
| Battery contact piece | 0.08 | Sus 304 | |||
| 3.5″ disk switch | 0.05~0.13 | Sus 304 | |||
| 3 | Heat exchanger | Waste heat recovery and reuse | 0.04~0.05 | Sus 304，Sus 309，Sus 321 | |
| 4 | Battery manufacturing | Cathode and anode contact surface | 0.05~0.13 | SUS 304 | |
| 5 | Electric heating element | All kinds of thin soft components | 0.025~0.1 | SUS 304 | |
| 6 | Pipeline control | Pressure sensing automatic start device | 0.05~0.13 | SUS 304,SUS 321,SUS 304L,SUS 316L | |
| 7 | Spring industry | Various types of precision springs | 0.05~0.10 | SUS301,SUS 302,SUS 304 | |
| 8 | Hypodermic needle | Various needle tubes for drawing or welding | 0.025~0.10 | SUS304 | |
| 9 | Pharmaceutical industry | Surgical or dental appliances | 0.02~0.06 | SUS 304, SUS 316 |
At present, there is no international production standard for stainless steel foil (<0.06MM). All countries have adopted the standard for thicker stainless steel coils or established their own production standards.
Yaoyi stainless steel foil strictly follows the American AISI production standard and provides customers with the best quality stainless steel foil.
You need to inform Yaoyi, the quantity, width, thickness, hardness or tensile strength of stainless steel foil you need, surface requirements, acceptable tolerance range.
If you don’t know the hardness or tensile strength of the product, please tell Yaoyi what the purpose of stainless steel foil you want , you can send the existing stainless steel foil to Yaoyi and we will test it for you free of charge. Then Yaoyi can provide you the most accurate quotation.
Classification of steel grades: SUS301 (1Cr17Ni7), SUS304 (0Cr18Ni9), SUS304L (00Cr18Ni10), SUS316 (0Cr17Ni12Mo2), SUS316L (00Cr17Ni14Mo2), SUS310S (1Cr25Ni20Si2), SUS321 (1Cr18Ni9Ti).
| Element | Carbon | Manganese | Sulfur | Phosphorus | Silicon | Chromium | Nickel | Nitrogen |
| Type 301 | 0.15 max | 2.0 max | 0.03 max | 0.045 max | 1.0 max | 16 – 18 | 6.0 -8.0 | ~ |
| Element | Carbon | Manganese | Sulfur | Phosphorus | Silicon | Chromium | Nickel |
| Type 304 | 0.08x | 2.0x | 0.03X | 0.045x | 1.0 x | 18 – 20 | 8.0~10.5 |
| Type 304L | 0.03x | 2.0x | 0.03X | 0.035x | 1.0 x | 18 – 20 | 8.0~12.0 |
| Element | Carbon | Manganese | Sulfur | Phosphorus | Silicon | Chromium | Nickel |
| Type 316 | 0.08x | 2.0x | 0.03X | 0.035x | 1.0 x | 16 – 18 | 10.0~14.0 |
| Type 316L | 0.03x | 2.0x | 0.03X | 0.035x | 1.0 x | 16 – 18 | 12.0~15.0 |
| Element | Carbon | Manganese | Sulfur | Phosphorus | Silicon | Chromium | Nickel |
| Type 310 | 0.25 max | 2.0 max | 0.03 max | 0.045 max | 1.5 max | 24.0 – 26.0 | 19.2~22.0 |
| Type 310S | 0.08 max | 2.0 max | 0.03 max | 0.045 max | 1.5 max | 24.0 – 26.0 | 19.2~22.0 |
| Element | Carbon | Manganese | Sulfur | Phosphorus | Silicon | Chromium | Nickel | Nitrogen |
| Type 321 | 0.08 max | 2.0 max | 0.03 max | 0.04 max | 0.25– 1.0 | 17 – 19 | 9.0 – 12.0 | ~ |
In terms of thickness, Yaoyi can produce stainless steel foil with a thickness of 0.02~0.07mm.
Classification from the width: Yaoyi can produce stainless steel foil with a width of 2mm~500mm.
The surface processing of stainless steel foil is roughly divided into three types: 2B, BA, No. 8, and most of them are BA, 2B.
The tolerance range of each thickness will be different. For example, the tolerance range of a stainless steel foil with a thickness of 0.06mm is 0.02mm; the tolerance range of a stainless steel foil with a thickness of 0.05mm is 0.03mm.
The smaller the tolerance range, the more difficult the production. The higher the production cost, the higher the price of stainless steel foil.
For normal production and processing, the width tolerance of stainless steel foil with a width of more than 100mm is 5mm, and the width tolerance of stainless steel foil with a width of less than 50mm is: 2mm. Yaoyi can also provide edge scraping services.
Stainless steel foil has excellent anti-rust performance and excellent mechanical properties, high fatigue resistance, good elasticity and toughness. Stainless steel foil can be used for heat treatment, moisture barrier, chemical tanks, heat exchangers, fins, chemical equipment, metal stampings and gaskets. 100% recyclable.
On the one hand, you can send the stainless steel foil you are currently using to Yaoyi.
Yaoyi has a professional laboratory, and the well-trained and experienced engineers can analyze your products in both physical and chemical aspects.
On the other hand, Yaoyi can provide you with samples for free according to your requirements, and you can use your machine to check whether it meets your requirements.
30% deposit and 70% balance before shipment.
Payment in advance by T/T or Western Union.
Under normal circumstances, Yaoyi can produce and deliver the stainless steel foil you need within 15 days.
Yaoyi is a factory specializing in the production of stainless steel foil for more than 26 years.
Yaoyi has been following the ISO 9001 international practice system certification, and each batch of product shipments will be sampled and tested and retained for archiving, and the product inspection report of stainless steel foil will be released.
Ensure the high quality of the customer’s stainless steel foil.
Yaoyi is the world’s only overseas raw material supplier for leading companies in the automotive clamp industry.
Yaoyi is a raw material supplier for PDVSA’s subsea oil pipeline.
Yaoyi is a raw material supplier of stainless steel foil for leading dental companies.
In the past 26 years, Yaoyi has served more than 300 enterprises of various types and has always been known for its quality and service.
YAOYI is located on 50 acres of land in Ningbo, Zhejiang. The location is close to the highway leading to Beilun Port, the main port in eastern China.
Beilun Port is located on the east coast of China, on the west coast of the Pacific Ocean, and in the middle of the Chinese coastline. Beilun Port has unique natural conditions, with Zhoushan Islands as a natural barrier. The waves are calm, and about 98% of the days each year have only waves of level 1 to 2. The water depth of Beilun Port is 20 meters, and the main channel is 50 meters deep. It does not freeze or silt all the year round. If there is a large storm above level 12 on the sea, it can accommodate 300 ships of more than 100,000 tons to enter the port for shelter. It is one of China’s excellent deep-water ports. It is also a rare haven in the world, capable of handling 100,000-ton, 200,000-ton, and 300-ton cargo ships and tankers.
To ensure the delivery of your products, Yaoyi stainless steel foil manufacturers use a specially customized production management ERP system. Whether you need stainless steel foil for trading companies or traditional factories, Yaoyi can provide solutions. With the MOQ, you can get a sufficient quantity of stainless steel foil for sale or production. Yaoyi provides you with the suitable price and high quality stainless steel foil.
After years of hard work, Yaoyi is well-known for its excellent stainless steel foil production. Our well-trained and experienced engineers ensure the production of high-quality stainless steel foil. Combined with our quality management system, you can ensure that these stainless steel foils can perfectly meet your requirements. In Yaoyi, you can find the best stainless steel foil for your business.
Yaoyi is a family-owned company that has completed the handover of leaders. The new owner is a master’s degree from Durham University in the United Kingdom. Her goal is to develop and inherit Yaoyi as a century-old steel company and produce the best quality stainless steel foil for customers .
In the twenty-six years engaged in the production of stainless steel foil, Yaoyi has gained the trust of different customers. Our fast delivery time and excellent service make us one of the most reliable stainless steel foil manufacturers in China. In Yaoyi, we can help you make your business grow rapidly in the market or any platform where you want to show your brand.
At Yaoyi, we have 24/7 online staff who will meet your requirements. If you have any questions , please contact us for free.
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