| Type: | Stainless Steel Sheets |
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| Standard: | ASTM, AISI, GB, JIS, DIN, EN |
| Grade: | 400 Series |
| Certification: | ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS |
| Shape: | Flat |
| Technique: | Cold Rolled |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier |
Product name
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Stainless Steel Circle
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Surface
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2b ,No.1, No.4,mirror ,8K,polish,ba,bursh...
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Material
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201,202,304,316,410,430
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Specification
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OD:100mm---800mm
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Thickness:0.15mm---16mm(or as your requirement)
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Technique
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Cold Rolled Hot Rolled
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Standard
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JIS,AISI,ASTM,DIN,EN,GB.
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Application range
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Decorative,Industry,etc
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Payment
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T/T,30% advanced payment before production and balance before shipment.
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The production of stainless steel wafers is produced by fully automatic integrated stainless steel wafer production equipment, which can directly punch and blank the wafers on stainless steel coils without cutting, slitting and other processes.
Surface Picture:
| Surface Finish | Definition | Application |
| 2B | Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster. | Medical equipment, Food industry, Construction material, Kitchen utensils. |
| BA | Those processed with bright heat treatment after cold rolling. | Kitchen utensils, Electric equipment, Building construction. |
| NO.3 | Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001. | Kitchen utensils, Building construction. |
| NO.4 | Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001. | Kitchen utensils, Building construction, Medical equipment. |
| HL | Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size. | Building construction |
| NO.1 | The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling. | Chemical tank, pipe. |
The corrosion resistance of stainless steel decreases with the increase of carbon content. Therefore, the carbon content of most stainless steels is low, the maximum does not exceed 1.2%, and the ωc (carbon content) of some steels is even lower than 0.03% (such as 00Cr12 ). The main alloying element in stainless steel is Cr (chromium). Only when the Cr content reaches a certain value, the steel has corrosion resistance. Therefore, stainless steel generally has a Cr (chromium) content of at least 10.5%. Stainless steel also contains Ni, Ti, Mn, N, Nb, Mo, Si, Cu and other elements.
According to the composition, it can be divided into Cr series (400 series), Cr-Ni series (300 series), Cr-Mn-Ni (200 series), heat-resistant chromium alloy steel (500 series) and precipitation hardening system (600 series).
200 Series: Chromium-Manganese-Nickel
201, 202, etc.: Nickel is replaced by manganese, which has poor corrosion resistance and is widely used as a cheap substitute for 300 series in China
300 series: chromium-nickel austenitic stainless steel
301: Good ductility, used for molding products. It can also be hardened by mechanical processing. Good weldability. Wear resistance and fatigue strength are better than 304 stainless steel.
302: The corrosion resistance is the same as that of 304, and the strength is better due to the relatively high carbon content.
303: By adding a small amount of sulfur and phosphorus, it is easier to cut than 304.
304: General model; that is, 18/8 stainless steel. Products such as: corrosion-resistant containers, tableware, furniture, railings, medical equipment. The standard composition is 18 % chromium plus 8 % nickel. It is a stainless steel that is non-magnetic and cannot change its metallographic structure by heat treatment. The GB grade is 06Cr19Ni10.
304 L: The same characteristics as 304, but low carbon so it is more corrosion resistant, easy to heat treatment, but poor in mechanical properties, suitable for welding and products that are not easy to heat treatment.
304 N: It has the same characteristics as 304. It is a nitrogen-containing stainless steel. Nitrogen is added to increase the strength of the steel.
309: Compared with 304, it has better temperature resistance, and the temperature resistance is as high as 980 °C.
309 S: It has a lot of chromium and nickel, so it has good heat resistance and oxidation resistance. Products such as: heat exchangers, boiler components, and jet engines.
310: Excellent high temperature oxidation resistance, the maximum service temperature is 1200°C.
316: After 304, the second most widely used steel grade is mainly used in the food industry, watch accessories, pharmaceutical industry and surgical equipment. Adding molybdenum element makes it obtain a special corrosion-resistant structure. Because it has better resistance to chloride corrosion than 304, it is also used as "marine steel". SS316 is usually used in nuclear fuel recovery units. Grade 18/10 stainless steel is also generally suitable for this application level.
316 L: Low carbon, so it is more corrosion-resistant and easy to heat treatment. Products such as: chemical processing equipment, nuclear power generators, and refrigerant storage tanks.
321: In addition to reducing the risk of material weld corrosion due to the addition of titanium, other properties are similar to 304.
347: Add the stabilizing element niobium, suitable for welding aircraft parts and chemical equipment.
400 series: Ferritic and martensitic stainless steel, manganese-free, can replace 304 stainless steel to a certain extent
408: Good heat resistance, weak corrosion resistance, 11% Cr, 8% Ni.
409: The cheapest model (British and American), usually used as a car exhaust pipe, is a ferritic stainless steel (chrome steel).
410: Martensitic (high-strength chromium steel), good wear resistance and poor corrosion resistance.
416: The addition of sulfur improves the processing properties of the material.
420: "Knife grade" martensitic steel, similar to the earliest stainless steels such as Brinell high chromium steels. It is also used for surgical knives and can be made very shiny.
430: Ferritic stainless steel, for decoration, such as for car accessories. Good formability, but poor temperature resistance and corrosion resistance.
440: High-strength cutting tool steel with slightly higher carbon content. After proper heat treatment, a higher yield strength can be obtained, and the hardness can reach 58HRC. It is among the hardest stainless steels. The most common application example is "razor blades". There are three commonly used models: 440A, 440B, 440C, and 440F (easy to process).
500 series: heat resistant chromium alloy steel.
600 series: martensitic precipitation hardening stainless steel.
The products are widely used in stainless steel processing and manufacturing Stainless steel wafers for cooking utensils, stainless steel wafers for lamps, steel cylinders and cans, and tank heads and other industries that require stainless steel wafers, have met the large number of wafer blank production needs of enterprises.
Jinan Zunkai Group founded in 2002, with five branch companies and is well-funded. Our annual sales nearly one billion, about 300,000 tons steel. Our company is located in Jinan City, Shandong Province. We entered into a strategic partnership with Bao Steel, Laiwu Steel, Rizhao Steel, Handan Steel, Anyang Steel, Maanshan Steel and other domestic large steel companies.
Zunkai is the largest steel agent in Shandong Province, we also have ourselves steel process factory with 100000 Square meter for steel laser cutting, surface treatment and other further processing, and our stock always more than 20, 000 tons.
Sincerely wish to building a long regular business with you forever!
Zunkai Group mainly engaged in: H beam, I beam, angle, Channel flat steel, round steel, galvanized steel, steel plate, PPGI, angle bar, steel pile etc. We always focused on the integration of resources in line with the concept of Win-win cooperation.
Pre-sale service:
Q1: What is your terms of payment?
A: 30% T/T as the upfront deposit, 70% before delivery. We will show you the photos of products and package before you pay the balance.
Q2: what is the terms of delivery?
A: EXW, FOB, CIF, CFR, DDU
Q3: What is the terms of packing?
A: generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirement.
Q4: What is your delivery time?
A: For stocks, we could transport the goods to loading port within 7 days after we received your deposit.
For production period, it usually takes about 15 days-30 days after receiving the deposit.
Q5: Could you produce according to the samples?
A : Yes, we could customer-made by your samples or technique drawings, we could build the mold and fixtures.
Q6: Could you provide the compliment samples?
A: yes, we could provide the free samples on conditons it is available in stocks, however, the the transportation fee is borne by buyer.
Q7: How could you guarantee your products?
A: Each piece of products is manufactured by certified workshops, inspected by SORUN piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.
Q8: How do we trust your company?
A: We specialise in steel business for 14 years, headquarter locates in Jinan, Shandong province, you are welcome to investigate in any ways, by all means, you could place an order in alibaba with trade assurance which could secure your payment.
Suppliers with verified business licenses
Audited Supplier 
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