| Customization: | Available |
|---|---|
| Type: | Stainless Steel Coils |
| Standard: | ASTM, AISI, GB, JIS, DIN, EN |
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Stainless steel is an alloy steel whose main component is iron, while containing at least 11% chromium, as well as other elements such as nickel, molybdenum, manganese and so on. The following are some properties of stainless steel:
Grade 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. 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.
Corrosion resistance: Stainless steel is known for its excellent corrosion resistance. The chromium element reacts with oxygen to form a dense oxide film (chromium oxide layer), which prevents further oxidation and corrosion on the surface of the steel, making the stainless steel resistant to the erosion of most chemical media. This makes stainless steel widely used in environments containing water, gases and chemicals.
High temperature performance: stainless steel maintains good performance at high temperatures and can maintain structural stability and strength for a long time. This makes stainless steel suitable for high-temperature processes and applications, such as petrochemical, energy production and other fields.
Mechanical properties: Stainless steel has excellent mechanical properties, including strength, hardness and ductility. This makes stainless steel widely used in manufacturing industries, including automotive, aerospace, construction and manufacturing.
Aesthetic: The surface of stainless steel is smooth and uniform, and it can show different appearance effects by polishing, brushing or painting. This makes stainless steel in architectural decoration, furniture manufacturing, art production and other fields have a wide range of applications.
Renewable: Stainless steel is a recyclable material, through recycling and reuse, can reduce resource consumption and environmental pollution, in line with the principle of sustainable development.
In general, stainless steel has excellent properties such as corrosion resistance, high temperature resistance, good mechanical properties, aesthetics and renewability, making it widely used in various industrial and civil fields.
Chemical Composition:
Stainless steel is an austenitic stainless steel that has a composition of chromium, nickel, and manganese. Its chemical composition is as follows:
| Grade | Chemical Composition (%) | |||||||
| c | si | Mn | P | s | Ni | Cr | Mo | |
| 201 | ≤0.15 | ≤0.75 | 5.5-7.5 | ≤0.06 | ≤ 0.03 | 3.5-5.5 | 16.0-18.0 | - |
| 301 | ≤0.15 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 6.0-8.0 | 16.0-18.0 | - |
| 304 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 8.0-10.5 | 18.0-20.0 | - |
| 304L | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.035 | ≤ 0.03 | 9.0-13.0 | 18.0-20.0 | - |
| 316 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
| 316Ti | ≤0.08 | ≤0.75 | ≤2.0 | ≤0.045 | ≤0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
| 310S | ≤0.08 | ≤1.5 | ≤2.0 | ≤0.045 | ≤0.03 | 19-22 | 24-26 | |
| 316L | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 12.0-15.0 | 16 .0-1 8.0 | 2.0-3.0 |
| 321 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.035 | ≤ 0.03 | 9.013 | 17.0-1 9.0 | - |
| 405 | ≤0.08 | ≤1.0 | ≤1.0 | ≤0.04 | ≤0.03 | 0.6 | 11.5-14.5 | |
| 409 | ≤0.08 | ≤1.0 | ≤1.0 | ≤0.04 | ≤0.03 | 0.6 | 11.5-14.5 | |
| 409L | ≤0.08 | ≤1.0 | ≤1.0 | ≤0.04 | ≤0.03 | 0.6 | 11.5-14.5 | |
| 410 | ≤0.15 | ≤1.0 | ≤1.0 | ≤0.035 | ≤ 0.03 | - | 11.5-13.5 | - |
| 430 | ≤0.12 | ≤0.75 | ≤1.0 | ≤0.040 | ≤ 0.03 | ≤0.60 | 16.0-18.0 | - |
| 420 | ≤0.05 | ≤1.0 | ≤1.0 | ≤0.04 | ≤0.03 | 0.75 | 12-14 | 0.5 |
| 430 | ≤0.12 | ≤1.0 | ≤1.0 | ≤0.04 | 0.03 | 0.5 | 16-18 | 0.75 |
| 444 | ≤0.025 | ≤1.0 | ≤1.0 | ≤0.04 | 0.03 | 1 | 17.5-19.5 | 1.75-2.5 |
| 904L | ≤0.02 | ≤1.0 | ≤2.0 | ≤0.045 | 0.035 | 23-28 | 19-23 | 4.0-5.0 |
| 2205 | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.03 | 0.02 | 4.5-6.5 | 22.0-23.0 | 3.0-3.5 |
| 2507 | ≤0.03 | ≤0.8 | ≤1.0 | ≤0.035 | 0.02 | 6.0-8.0 | 24-26 | 3.0-5.0 |
| Tianjin Zhongyantiancheng Steel Co.,Ltd | ||||
| Commodity | Stainless Steel Coil/Stainless Steel Roll | |||
| Material | 440C | |||
| Standard | GB | JIS | ASTM/ASME | DIN |
| 9Cr18/11Cr17 | SUS 440C | 440C | 1.4125 | |
| Chemical Composition | C | Mn | P | S |
| 0.95-1.20 | <=1.00 | <=0.040 | <=0.03 | |
| Si | Cr | Mo | ||
| ≤1.00 | 16.0-18.0 | <=0.75 | ||
| Thickness | 0.3mm--6mm(cold rolled) 3mm--16mm(hot rolled) | |||
| Width | 1000mm--2200mm | |||
| Surface | BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D | |||
| manufacture | Hot Rolled/Cold Rolled | |||
| Packing | Packed in bundles with standard export sea-worthy package | |||
| Delivery Time | Within 15 working days, according to customers' quantities | |||
| Quality | High Quality.SGS inspection is accepted if needed | |||
| Place of Origin | Tianjin | |||
| Productivity | 500 MT/Month | |||
| Payment | T/T,L/C | |||
| Application | High quality knife blades,Surgical instruments,Valve seats,Chisels | |||
| Note | We can also do other materials | |||
Thickness and Width:
The thickness and width of stainless steel an vary according to specific needs and applications. Generally speaking, the thickness of stainless steel can range from a very thin few millimeters to tens of millimeters, and the width is usually between tens of millimeters and several meters.
| Grade | GB | ASTM | DIN | JIS | BS |
| 200 series stainless steel | 12Cr17Mn6Ni5N | 201 | 1.4371 | SUS201 | - |
| 12Cr18Mn8Ni5N | 201 | 1.4373 | SUS202 | 284S16 | |
| 300 series stainless steel | 12Cr17Ni7 | 301 | 1.4319 | SUS301 | 301S21 |
| 06Cr19Ni10 | 304 | 1.4301 | SUS304 | 304S15 | |
| 022Cr19Ni10 | 304L | 1.4306 | SUS304L | 304S12 | |
| 06Cr19Ni10N | 304N | 1.4315 | SUS404N1 | - | |
| 16Cr23Ni13 | 309 | 1.4828 | SUH309 | ||
| 06Cr23Ni13 | 309S | 1.4833 | SUS309S | ||
| 20Cr25Ni20 | 310 | 1.4821 | |||
| 06Cr25Ni20 | 310S | 1.4845 | SUS310S | ||
| 06Cr17Ni12Mo2 | 316 | 1.4401 | SUS316 | 316S16 | |
| 07Cr17Ni12Mo2 | 316H | 1.4436 | |||
| 06Cr17Ni12Mo3Ti | 316Ti | 1.4571 | SUS316Ti | 320S31 | |
| 022Cr17Ni12Mo2 | 316L | 1.4404 | SUS316L | 316S12 | |
| 022Cr17Ni13Mo2N | 316LN | 1.4429 | SUS316LN | 316S61 | |
| 06Cr19Ni13Mo3 | 317 | 1.4436 | SUS317 | 317S16 | |
| 022Cr19Ni13Mo3 | 317L | 1.4438 | SUS317L | 317S12 | |
| 06Cr18Ni9Ti | 321 | 1.4541 | SUS321 | 321S12 | |
| 06Cr18Ni11Nb | 347 | 1.4550 | SUS347 | 347S17 | |
| 07Cr18Ni11Nb | 347H | 1.4912 | SUS347H | ||
| Duplex stainless steel | 015Cr20Ni18Mo6CuN | 254SMo | 1.4547 | ||
| 015Cr21Ni26Mo5Cu2 | 904L | 1.4539 | |||
| 06Cr26Ni4Mo2 | 329 | SUS329J1 | |||
| 022Cr19Ni5Mo3Si2N | 3RE60 | 1.4417 | DP11 | ||
| 022Cr22Ni5Mo3N | F51 | 1.4462 | SUS329J3L/DP8 | ||
| 022Cr23Ni5Mo3N | F60 | ||||
| 022Cr25Ni7Mo4N | F53 | 1.4410 | |||
| 03Cr25Ni6Mo3Cu2N | F61 | 1.4507 | SUS329J4L | ||
| 022Cr25Ni7Mo4CuWN | F55 | 1.4362 | DP11 | ||
| 022Cr23Ni4MoCuN | 1.4362 | DP11 | |||
| 022Cr25Ni6Mo2N | 1.4460 | ||||
| Precipitation hardening type stainless steel | 05Cr15Ni5Cu4Nb | 15-5PH | 1.4545 | XM-12 | |
| 05Cr17Ni4Cu4Nb | 17-4PH | 1.4542 | |||
| 07Cr17Ni7Al | 17-7PH | 1.4568 | |||
| 400 series stainless steel | 06Cr13Al | 405 | 1.4002 | SUS405 | 405S17 |
| 06Cr111Ti | 409 | SUS409 | |||
| 022Cr111Ti | 409L | 1.4512 | SUH409L | ||
| 10Cr17 | 430 | 1.4016 | SUS430 | 430S15 | |
| Y10Cr17 | 430F | 1.4104 | SUS430F | ||
| 019Cr19Mo2NbTi | 444 | 1.4521 | SUS444 | ||
| 06Cr13 | 410S | 1.4000 | SUS410S | 430S17 | |
| 12Cr13 | 410 | 1.406 | SUS410 | 410S21 | |
| 2Cr13 | 420 | 1.4021 | SUS420J1 | 420S37 | |
| 3Cr13 | 420 | 1.4028 | SUS420J2 | 420S45 | |
| 17Cr16Ni2 | 431 | 1.4057 | SUS431 | 431S29 | |
| 108Cr17 | 440C | 1.4125 | SUS440S | ||
| Y108Cr17 | 440F | SUS440F |
We can provide different specifications and sizes of stainless steel, and can choose the appropriate thickness and width according to the specific needs.
Hot Rolled and Cold Rolled
Stainless steel products can be manufactured using either hot rolled or cold rolled techniques. Hot rolling involves heating the steel above its recrystallization temperature and then passing it through rollers to form the desired shape. Cold rolling, on the other hand, involves passing the steel through rollers at room temperature to reduce its thickness.
Corrosion Resistance:
*Good resistance to the atmosphere, fresh water, foods, alkalies and mild acids. Best resistance in the hardened and tempered and passivated condition. A smooth polished surface also assists.
*The corrosion resistance of grade 440C approximates that of grade 304 in many environments.
Heat Resistance:
*Not recommended for use in temperatures above the relevant tempering temperature, because of reduction in mechanical properties by over-tempering.
Heat Treatment:
*Annealing - Full anneal - 850-900°C, slow furnace cool to about 600°C and then air cool. Sub-critical Annealing - 735-785°C and slow furnace cool.
*Hardening - Heat to 1010-1065°C, followed by quenching in warm oil or air. Oil quenching is necessary for heavy sections. Immediately temper at 150-370°C to obtain a wide variety of hardness values and mechanical properties as indicated in the accompanying table.
*Tempering in the range 425-565°C is to be avoided because of reduced impact resistance and corrosion resistance. Tempering in the range 590-675°C results in lower hardness (the product become machinable) and high impact resistance.
Welding:
*If welding is necessary pre-heat at 250°C and follow welding with a full anneal. Grade 420 filler will give a high hardness weld (although not as high as the 440C), but 309 or 310 will produce soft welds with higher ductility.
Machining:
*In the annealed condition this grade is relatively easily machined; approximately the same as for high speed steel.
Chips are tough and stringy so chip breakers are important. If these grades are hardened machining becomes more
difficult and probably impossible.
Different Finishes
Stainless steel comes in different finishes that can affect its appearance and properties. Here are some common finishes:
| Different Finishes |
| 2B: This is a smooth, reflective finish that is produced by cold rolling followed by annealing and descaling. |
| No.1: This is a rough, dull finish that is produced by hot rolling followed by annealing and pickling. |
| SB: This is a satin finish that is produced by applying a fine abrasive material to the surface of the steel. |
| BA: This is a bright, mirror-like finish that is produced by buffing the surface of the steel with a fine abrasive material. |
| HL: This is a hairline finish that is produced by brushing the surface of the steel with a fine abrasive material. |
| Mirror: This is a highly reflective finish that is produced by polishing the surface of the steel with a very fine abrasive material. |
Q1:What kind of ZYTC company?
A: ZYTC is a professional manufacturer of metals and alloy productions and has its own warehouse with more than 30,000 tons capacity. We are working hard to open up the international market. At the same time, we will encounter a variety of purchase orders, In order to meet customer requirements and improve services, we will also distribute some kinds of metal products, of course, our strict procurement management and quality management departments can guarantee excellent quality of all products.
Q2: What certificate does ZYTC have?
A: ZYTC acquired the ISO 14001 environmental management system certificate, 0HSAS18001 occupational health and safety management system certificate, and ISO 9001 quality management system certificate.
Q3: What's your purchasing system?
A: Our procurement system adopts the 5R principle to ensure the "right quality" from the "right supplier" with the "right quantity" of materials at the "right time" with the "right price" to maintain normal production and sales activities. At the same time, we strive to reduce production and marketing costs to achieve our procurement and supply goals: close relationships with suppliers, ensure and maintain supply, reduce procurement costs, and ensure procurement quality.
Q4: Who are your cooperate partners?
A: ZYTC has a very good relationship with world-known factories, such as Baosteel, TISCO, ZPSS, JISCO, ATl, SMC, HAYNES, VDM, ArcelorMittal, etc.
Q5: What are your company's payment methods?
A: 30% T/T deposit, 70% T/T balance payment before shipment. More payment methods depend on your choices.
Q6: Can you accept small orders?
A: If we have the exact materials in stock, we can deliver even 1 piece. If we don't have the goods in stock, the MOQ is normally 1 ton.
Q7: Do you guarantee the safe and reliable delivery of products?
A: Yes, we always use high-quality packaging for shipping. We usually pack the products with a soft material such as polyethylene foam and then pack it in wooden cases to ensure the safety of the product in the process of transportation.
Q8: Does ZYTC provide processing services?
A: Yes, we also provide processing services to the outside world, and providing professional services is one of our goals. Such as bending, water cutting, laser cutting, digging holes, welded, slit coil, and other processing according to the drawings.
Q9: How to guarantee the quality?
A: Each production procedure will be subject to testing and evaluation. from the very choice of raw materials to the package for shipment. Only the products surviving all the tests are delivered for export.
Q10: What if there is a quality problem?
A: We also keep a piece of the sample before shipping. After comparing the buyer's test result, and it turns out to be our problem, we will return the money back and pay for your lost or delivery of qualified materials again.
Q11: Can you provide samples?
A: As a professional company, we know that the quality of products is valued by each customer, especially for international trade, we understand the customer's worries, so we can provide samples to customers, and we can ensure the consistency of the quality of samples and batch product products. The sample is free, but the buyer should pay the freight fee. And the freight fee will be returned in the future order.
Q12: How about the delivery time?
A: Stock products can be shipped within 3 days. Customized product delivery time is normally 25 working days, but it is also influenced by the specific requirements or the order quantity. Partial shipment is allowed.
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