| Customization: | Available |
|---|---|
| Type: | Stainless Steel Pipes |
| Standard: | ASTM, AISI, GB, JIS, DIN, EN |
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304/304H (UNS S30400/ S30409) is a modification of the most widely utilized "18-8" chromium-nickel austenitic stainless steel. The carbon content is controlled in the range of 0.04-0.10% for increased strength at temperatures above 800°F (427°C). It is an economical and versatile corrosion resistant alloy suitable for a wide range of general purpose applications.| Element | 304 | 304H |
| Cr | 18.0 - 20.0 | 18.0 - 20.0 |
| Ni | 8.0 - 10 | 8.0 - 10 |
| C | 0.08 | 0.04 - 0.1 |
| Mn | 2.0 | 2.0 |
| P | 0.045 | 0.045 |
| S | 0.03 | 0.03 |
| Si | 0.75 | 0.75 |
| N | 0.1 | 0.1 |
| Fe | Balance | Balance |
| Typical | 304 | 304H | |
| 0.2% Offset Yield Strength, ksi | 43 | 30 min | 30 min |
| Ultimate Tensile Strength, ksi | 91 | 75 min | 75 min |
| Elongation in 2 inches, % | 58 | 40 min | 40 min |
| Reduction in Area, % | 68 | -- | - |
| Hardness, Rockwell B | 83 | 92 max | 92 max |
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 |
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.
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.
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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