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420J2 Stainless steel mirror coil

420J2 Stainless steel mirror coil Thickness:0.3mm-3.0mm Width:200mm,500mm,1000mm,1219mm,1500mm,2000mm,2500mm,3000mm, etc Length:customized Products can be customized Surface:BA,4K,8K Standard:ASTM,AISI,JIS,GB, DIN,EN




420J2 Stainless steel mirror coil

Product Details

420J2 Stainless steel mirror coil Specifications:

420J2 Stainless steel mirror coil , with a certain wear resistance and corrosion resistance, high hardness, its price is a lower class of stainless steel ball, suitable for the ordinary requirements of stainless steel in the working environment. Suitable for all kinds of precision machinery, bearings, electrical, equipment, instruments, meters, transportation vehicles, household appliances, etc. Mainly used in the manufacture of air, water vapor, water and oxidizing acid corrosion resistant parts. 420J2 has similar properties and uses as 420J2, but has higher strength and hardness than 420J2 (3cr13).


Product Name 420J2 Stainless steel mirror coil






40mm-600mm, 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc






It is widely used in high-temperature and electric industry, medical devices, construction, chemistry, food industry, agriculture, and ship components.

It also applies to food and beverage packaging, kitchen supplies, trains, aircraft, conveyor belts, vehicles, bolts, nuts, springs, and screen mesh etc.




Cold Rolled 


Mill Edge \ Slit Edge


SGS Inspection


410,430,201,304,304L,321,316,316L,317L,347H,309S,310S,904L 201





Supply Ability

20000 Ton/Tons per Month

Packaging & Delivery

in bundle,plastic bags,thin film,wooden pallet,standard seaworthy export packing or as customer demands

20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High)   24-26CBM

40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High)   54CBM

40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High)    68CBM


Chemical Composition of 420J2 Stainless steel mirror coil:

Grade C Mn P S Si Cr Ni Mo
420J2 0.26-0.35 ≤1.0 ≤0.035 ≤ 0.03 ≤1.0 12.00-14.00 ≤0.60 /



Applications, from construction to automotive, from transportation to storage, from industrial production to household appliances, basically covering all walks of life. Whether it is stainless steel plate, stainless steel tube or other forms of stainless steel materials, they can be seen in a variety of fields.

Stainless Steel Sheet

Stainless steel coils

Automotive industry

Stainless steel in the automotive industry should be considered a relatively developed area of application of stainless steel sheet. The use of high-strength stainless steel sheet as a raw material for the manufacture of vehicle body structure can greatly reduce the weight of the vehicle, enhance the strength of the overall structure of the vehicle, and if the vehicle panel is made of stainless steel sheet, it can effectively save maintenance costs. In addition, stainless steel plate due to its good resistance to chloride ion corrosion and heat resistance, is used in the production of automotive exhaust systems. European and American countries are using a large number of stainless steel plate as a raw material for automotive production.

Construction industry

Stainless steel coil has a long history of application in the field of construction, and is one of the widely used areas. In construction and home decoration, stainless steel coil is commonly used in the exterior walls of high-rise buildings, indoor and outdoor columns. In addition, there are handrails, elevator wall panels, doors and windows and other internal and external components. In addition, the surface treatment of stainless steel sheets, such as coloring and coating of stainless steel sheets, can solve the problem of easy handprints after touching, improve the decorative aesthetics and further expand the application areas of stainless steel sheets and coils.

Home appliance business

As far as household appliances are concerned, the consumption of stainless steel is also large. Just look at the inner tube of automatic washing machines, the inner tank of water heaters, the inner shell of microwave ovens, the lining of refrigerators, etc., it is necessary to know that household appliances usually use ferritic stainless steel coils as raw materials. In addition, with the growing popularity of real estate and the increasing demand for home appliances, it is surprising to see the same amount of stainless steel coils.

Water Industry

There is now a growing concern about the potential contamination of water during storage and transportation. Practice has shown that stainless steel coils are well suited as raw materials for water production, storage, transportation, purification, regeneration, desalination and other water industry equipment. Its advantages are: corrosion resistance, shock resistance, water conservation, sanitation (no rust and copper green), light weight (1/3 less), low maintenance, long service life (up to 40 years), low life cycle cost (LCC), and a recyclable and green material.

Industrial facilities

The proportion of stainless steel coils used in industrial facilities in developed countries can usually reach 15-20%, and now the proportion of domestic applications is also on the rise. On the one hand, this is due to the introduction of complete sets of industrial equipment, stainless steel coil material has not yet been counted, on the other hand, because domestic materials are also being used. Stainless steel coils are used in chemical, petrochemical, chemical fiber, paper, food, medicine, energy (nuclear power, thermal power, fuel cells) and other fields. With the improvement of the quality of domestic stainless steel coils and the development of special brand products, the future application of stainless steel coils in domestic industrial facilities will increase year by year.

Environmental protection industry

Stainless steel coil is not only used in industrial production, but also used as a raw material for industrial waste gas, waste and sewage treatment devices. In the flue gas desulfurization process, in order to resist the corrosion of sulfur dioxide, chloride ions and iron ions, it is necessary to use duplex stainless steel coils and advanced austenitic stainless steel coils in waste incinerators such as absorption towers, coolers, pumps, valves and flue pipes, and wastewater treatment and other facilities require the use of high-performance stainless steel coils.

Grade and classification of stainless steel surface treatment


Code of surface


Summary of manufacturing method


Primary surface


Silvery white without luster

A surface treated with heat treatment and pickling after hot rolling.

Industrial tank, chemical industrial equipment, etc., thick 3.0MM-10.0MM. It does not need to have a glossy surface

Blunt surface


A slightly lustrous silvery white

Hot rolling + annealing shot peening acid first + cold rolling + annealing pickling

Used for deep stamping, such as automotive components, water pipes, etc. General materials, deep drawing materials

Fog surface


Silver and better than 2D surface gloss and flatness, 0.39 micron roughness

Hot rolling + annealing shot peening + cold rolling + annealing pickling + tempering rolling. After NO.2D treatment, the final mild cold rolling is carried out by polishing roller

Such as tableware, building materials and so on. With improved mechanical properties of the surface treatment, almost all applications.

Frosted surface


Has a better gloss, with discontinuous coarse grain.

Use 100-120 grinding strip to grind out the product

Used for interior and exterior decoration materials, electrical products and kitchen equipment, etc.

Frosted surface


Better gloss, with discontinuous coarse lines, stripes thinner than NO.3.

With particle size 150-180 grinding belt grinding out the product

Used for bath, interior and exterior decoration materials, electrical products, kitchen equipment and food equipment, etc.

Frosted surface


Better gloss, with discontinuous coarse lines, stripes thinner than NO.4.

The product is ground with the 240 grinding belt

Used for bath, interior and exterior decoration materials, electrical products, kitchen equipment and food equipment, etc.

Frosted surface


Has a better gloss, with discontinuous coarse grain

The product is ground with the 320 grinding belt

Building materials, kitchen utensils

Frosted surface


Has a better gloss, with discontinuous coarse grain

The product is ground with the 400 grinding belt

Building materials, kitchen utensils, food equipment, etc

Drawing surface


Silvery gray with hair streaks. 2D or 28pcs are polished with a suitable abrasive material to make the surface continuously abrasive

A product with a continuous abrasive pattern produced by the continuous grinding of an appropriately sized polished strip (subdivision 150-320)

Mainly used for architectural decoration, elevator, building doors, panels and so on.

Bright surface


Excellent surface gloss and high reflectivity.

Usually bright and fire surface processing, surface reflection is very high.

Used in household appliances, mirrors, kitchen equipment, decorative materials, etc

mirror surface


It's not much worse than a mirror

Rough lapping

Mirrors, decorative panels

mirror surface



Grinding and polishing

Mirrors, decorative panels


Pack and Ship



Customer Evaluation

Over the years, we strive for survival by quality and development by efficiency, adhering to the business philosophy of "integrity, pragmatism, innovation and development", and have repeatedly won praise from customers.



Are you a manufacturing company or a trading company?


We are a manufacturer of metal materials and products with many years of experience.


Can you provide samples?


We can provide free samples, but samples are subject to a sample fee, which is refundable upon order confirmation.


How can I get an accurate quotation?


Please provide the product standard, material, size, quantity and other information.


What kind of payment terms do you accept?


We can accept T/T, L/C, Western Union or negotiation.


What markets do you mainly sell to?


Australia, America, Asia, Middle East, Western Europe, Africa, etc


Can you deliver the goods on time?


Yes, whether the price changes or not, we guarantee to provide the best quality products and on time delivery. Integrity is the purpose of our company.

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Shandong Zhongyi Metal Products Co., Ltd. is an enterprise specializing in the research and development, production, sales and service of metal products. Located in Shandong Province, China, the company covers a vast area with advanced production equipment and testing instruments, and a team of skilled and strong staff.

Zongyi Metal Products Co., Ltd. mainly produces all kinds of metal products, serving the industries of precision machinery parts, automobile parts, electronic components, construction and decoration materials. Adhering to the business philosophy of "Quality is the foundation, Innovation is the soul", the company constantly introduces advanced technology and equipment to improve product quality and reduce production costs to meet customer needs.

We have rich experience in the metal products industry, and our products sell well in domestic and international markets and are well received by customers. We always adhere to the customer-centered, market-oriented, in order to survive, innovation and development. We are willing to cooperate with customers at home and abroad to create a better future.









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