304/304L Stainless Steel Flat Bar Suppliers from China
As a leading stainless steel flat bar supplier and exporter in China, Daxun supplies high-quality stainless steel flat bar to all over the world.
- Flat bar grade: S30400（304）-S30403（304L）
- Form: cold drawn, hot rolled, sheared flat steel
- Edge：Right and rounded corners
- Surface: 2B, No.1, HL, matte, etc.
- Length can be cut to size or customized
304/304L stainless steel flat bar is very easy to process and weld, it has high strength and excellent corrosion resistance.
Daxun is a global leader in stainless steel flat bar fabrication services
304 /304L stainless steel flat bar or “flat stock”, this product has a semi-smooth, dark gray surface and sharp edges, and accurate dimensions throughout the entire length. It has excellent mechanical properties and is resistant to many types of corrosion. It also has a variety of surface treatments for you to choose from. There are three manufacturing processes for 304 /304L stainless steel flat bar: 1. Cold drawing – cold drawing through a die has a higher uniformity and smooth surface. 2. Hot rolling – rolled in a hot state, generally large-sized flat bar. 3. Shearing – using 304 Stainless steel flat barshearing to form, and then processed to flatten the body and smooth the edges.
Daxun’s expertise enables us to meet the production of any stainless steel flat bar needs. From regular batches of low-cost, sheared flat bars to custom cold bars and polished flat bars, we are fully capable of exceeding your expectations and providing high-quality flat bar products.
We are one of the leading stainless steel flat bar suppliers in China, offering a wide range of flat bars in various thicknesses and widths. Daxun produces 304/304L and 316/316L hot rolled stainless steel flat bars. We also offer cold drawn stainless steel flat bars. All stock stainless steel flat bars come in standard lengths. Our sawing technology allows our customers to get the parts they need to start their manufacturing.
We offer a wide selection of flat bar grades in multiple sizes, so when you buy from us, you will get a product that is closer to your finished size requirements. We have a large inventory, so our products are very competitively priced and available for next day delivery.
Our stainless steel flat bars go through multiple manufacturing processes to ensure exceptionally consistent product quality. The steel is first hot rolled and then annealed for stress relief. This ensures maximum corrosion resistance. The final stage of the pickling process is to immerse the prepared flat bar in a compound solution to eliminate any residue or scale on the surface of the steel.
We can give the stainless steel flat bar an additional polishing based on your needs. Other grades and non-standard sizes are available upon request. Please contact sales for more information on our stainless steel flat bar inventory and processing capabilities.
Data
- Parameter
- Element
- Mechanical Properties
- PHYSICAL PROPERTIES
- All equivalent
| Size range | Width: 20 mm to 300 mm, Thickness: 2.0 mm to 50 mm |
| Size Tolerances | ASTM A 484 EN 10058 ASTM A479、ASTM A484、ASTM A582、ASTM B473、ASTM A267、ASME 240/480、JIS 4305、DIN EN 10088-2 |
| Length | 2 metres – 6 metres ( 8 feet to 20 feet) |
| Length Tolerance | Special cut-to-length stainless steel flat bars available |
| Surface Finish | HRAP Condition |
| Heat Treatment | Solution Annealed |
| Ways to produce | cold drawn, hot rolled, sheared flat steel |
| Surface treatment | 2B, No.1, HL, matte, etc. |
| Marking and traceability | Each stainless steel flat bar can be traced back to its manufacturer and heat by an identification number etched within 24 inches (610 mm) of one end. |
| Test Certificate | Manufacturer test certificate in accordance with EN 10204 3.1 B, laboratory test certificate from a government recognized laboratory, third party inspection accepted. |
| Grades | AISI: 303, 304,304L, 316,316L, 316Ti, 321, 310s,2205,2507,630/17-4 PH, F 51 |
| DIN: 1.4305, 1.4307, 1.4404, 1.4571, 1.4541, 1.4542, 1.4821, 1.4462 |
| Composition of 304/304L/304LN/304H 304 Stainless steel flat bar | ||||
| Grade | 304 | 304L | 304LN | 304H |
| UNS Designation | S30400 | S30403 | S30453 | S30409 |
| Carbon (C) Max. | 0.08 | 0.030* | 0.03 | 0.04 – 0.10 |
| Manganese (Mn) Max. | 2 | 2 | 2 | 2 |
| Phosphorous (P) Max. | 0.045 | 0.045 | 0.045 | 0.045 |
| Sulphur (S) Max. | 0.03 | 0.03 | 0.03 | 0.03 |
| Silicon (Si) Max. | 1 | 1 | 1 | 1 |
| Chromium (Cr) | 18.0–20.0 | 18.0–20.0 | 18.0–20.0 | 18.0–20.0 |
| Nickel (Ni) | 8.0–11.0 | 8.0–11.0 | 8.0–11.0 | 8.0–11.0 |
| Molybdenum (Mo) | — | — | — | — |
| Nitrogen (N) | — | — | 0.10–0.15 | — |
| Iron (Fe) | Bal. | Bal. | Bal. | Bal. |
| Other Elements | — | — | — | — |
| Type | Yield Strength 0.2% offset (KSI) | Tensile Strength (KSI) | % Elongation(2″ Gauge length) |
| 304 Ann | 30 min. | 75 min. | 40 min. |
| 304 ¼ Hard | 75 min. | 125 min. | 12 min. |
| 304 ½ Hard | 110 min. | 150 min. | 7 min. |
| 304L Ann | 25 min. | 70 min. | 40 min. |
| 304L ¼ Hard | 75 min. | 125 min. | 12 min. |
| 304L ½ Hard | 110 min. | 150 min. | 6 min. |
| 304 & 304L | ||
| Density (lb./ in^2) @ RT | 0.29 | |
| Modulus of Elasticity in Tension (psi x 10^6) | 28 | |
| Specific Heat (BTU/o F/lb.) | 32 to 212 oF | 0.12 |
| Thermal Conductivity (BTU/hr/ft^2/ft) | 212oF | 9.4 |
| 932oF | 12.4 | |
| Mean Coefficient of Thermal Expansion (in. x 10^-6 per o F) | 32 to 212oF | 9.2 |
| 32 to 600oF | 9.9 | |
| 32 to 1,000oF | 10.2 | |
| 32 to 1,200oF | 10.4 | |
| Electrical Resistivity (micro ohms – cm) | at 70oF | 72 |
| Melting Point Range (oF) | 2550 to 2650 | |
| Oxidation Resistance – Continuous Service(oF) | 1,650 | |
| Oxidation Resistance – Intermittent Service(oF) | 1,500 |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
Choose Daxun and make your customers satisfied.
Product Details 304 Stainless steel flat bar
Stainless steel flat bar, usually there are three types: 1. Hot rolled flat bar, rolled through a rolling mill and annealed and pickled, usually in larger sizes. 2. Cold drawn flat bar, drawn through a die multiple times in a cold state, it has a smooth surface and precise dimensions. 3. Sheared flat bar, cut from 304 Stainless steel flat bar, sheared, then trimmed or sawn. It is usually the most economical stainless steel flat shape, with a smooth matte, granular surface. Flat bar is widely used in all types of industrial manufacturing projects. Daxun stocks full length 304 stainless steel flat bar, and can also produce custom non-standard sizes.
Daxun Advantages
Quality is belief, and integrity is a business card. Daxun pioneered the concept of “performance excellence management” and implemented the “PDCA+Lean” management model. The company’s business card says “Daxun = assured quality”. Daxun Stainless Steel uses the ERP system to achieve full traceability of each angle steel, including variety, specification, and origin, and advocates and encourages industry anti-counterfeiting. Daxun Stainless Steel relies on technology for processing and customization, and high precision and high quality are the industry benchmarks; in terms of service, it promotes product life cycle management, provides professional material selection and processing solutions before sales, strictly monitors during sales, and provides worry-free service guarantees after sales.
Features of 304-304L stainless steel flat bar
304-304L stainless steel flat barFeatures include:
• Corrosion resistance, acid and alkali resistance
• High manufacturability and strong structure
• Precise design and accurate dimensions
• High tensile strength and durability
• Easy to weld and easy to bend
Before delivery, 304-304L Stainless Steel Flat Bars are subjected to strict quality control measurements. Third-party inspection is also conducted based on buyer needs.
Quality, delivery, inspection
- Daxun will conduct a number of quality assurance tests. These tests include flattening test, pitting and resistance test, mechanical test, hardness test, material positive identification, expansion test, etc. All these tests ensure that the material is suitable for the required application.
- During the production process, we measure the diameter, thickness and surface of the product. Our standard delivery time is 7-15 days, except for some special size products, our delivery time will increase to 20 days.
- Our delivery time is strictly in accordance with the contract.
- Support customer third-party agencies to go to the factory for inspection.
- Support free samples for customer testing.
- Support on-site or video factory inspection.
304 Stainless steel flat bar Ordering Information
Standard Sizes and Custom Cuts: Rectangular Stainless Steel Flat Bars are available in stock lengths ranging from 3 to 6 meters and can be custom cut to any length. Tolerances: Our normal tolerance for custom cuts is +/- 1/16 inch. If you require tighter tolerances, please contact Daxun! Bulk Discounts: The unit price of most custom products decreases as quantity increases. Want wider, thicker flat bars or square corners? Contact Daxun today. We always have 304-304L Stainless Steel Flat Bar in stock and ship quickly. You can buy this 304 Stainless Steel Flat Bar from Daxun at the best price.
Technical Support
If you need any additional technical assistance, our resident metallurgist and knowledgeable staff will be pleased to help. Additionally, Daxun boasts a certified testing laboratory—a first in the multi-metal and plastic inventory industry. This, in our opinion, demonstrates our unwavering dedication to quality and our philosophy as a full-service supplier.
SS 304-304L Stainless Steel Flat Bar Features
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- Gallery
- Specification Table
| Common stainless steel flat bar specifications and weights table. | ||||||||||
| Nominal width mm | Thickness mm | |||||||||
| 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
| Theoretical weight kg/m | ||||||||||
| 10 | 0.24 | 0.31 | 0.39 | 0.47 | 0.55 | 0.63 | ||||
| 12 | 0.28 | 0.38 | 0.47 | 0.57 | 0.66 | 0.75 | ||||
| 14 | 0.33 | 0.44 | 0.55 | 0.66 | 0.77 | 0.88 | ||||
| 16 | 0.38 | 0.5 | 0.63 | 0.75 | 0.88 | 1 | 1.15 | 1.26 | ||
| 18 | 0.42 | 0.57 | 0.71 | 0.85 | 0.99 | 1.13 | 1.27 | 1.41 | ||
| 20 | 0.47 | 0.63 | 0.78 | 0.94 | 1.1 | 1.26 | 1.41 | 1.57 | 1.73 | 1.88 |
| 22 | 0.52 | 0.69 | 0.86 | 1.04 | 1.21 | 1.38 | 1.55 | 1.73 | 1.9 | 2.07 |
| 25 | 0.59 | 0.78 | 0.98 | 1.18 | 1.37 | 1.77 | 1.96 | 2.16 | 2.36 | 2.75 |
| 28 | 0.66 | 0.88 | 1.1 | 1.32 | 1.54 | 1.76 | 1.98 | 2.2 | 2.42 | 2.64 |
| 30 | 0.71 | 0.94 | 1.18 | 1.41 | 1.65 | 1.88 | 2.12 | 2.36 | 2.59 | 2.83 |
| 32 | 0.75 | 1 | 1.26 | 1.51 | 1.76 | 2.01 | 2.26 | 2.55 | 2.76 | 3.01 |
| 35 | 0.82 | 1.1 | 1.37 | 1.65 | 1.92 | 2.2 | 2.47 | 2.75 | 3.02 | 3.3 |
| 40 | 0.94 | 1.26 | 1.57 | 1.88 | 2.2 | 2.51 | 2.83 | 3.14 | 3.45 | 3.77 |
| 45 | 1.06 | 1.41 | 1.77 | 2.12 | 2.47 | 2.83 | 3.18 | 3.53 | 3.89 | 4.24 |
| 50 | 1.1.8 | 1.57 | 1.96 | 2.36 | 2.75 | 3.14 | 3.53 | 3.93 | 4.32 | 4.71 |
| 55 | 1.73 | 2.16 | 2.59 | 3.02 | 3.45 | 3.89 | 4.32 | 4.75 | 5.18 | |
| 60 | 1.88 | 2.36 | 2.83 | 3.3 | 3.77 | 4.24 | 4.71 | 5.18 | 5.65 | |
| 65 | 2.04 | 2.55 | 3.06 | 3.57 | 4.08 | 4.59 | 5.1 | 5.61 | 6.12 | |
| 70 | 2.2 | 2.75 | 3.3 | 3.85 | 4.4 | 4.95 | 5.5 | 6.04 | 6.59 | |
| 75 | 2.36 | 2.94 | 3.53 | 4.12 | 4.71 | 5.3 | 5.89 | 6.48 | 7.07 | |
| 80 | 2.51 | 3.14 | 3.77 | 4.4 | 5.02 | 5.65 | 6.28 | 6.91 | 7.54 | |
| 85 | 3.34 | 4 | 4.67 | 5.34 | 6.01 | 6.67 | 7.34 | 8.01 | ||
| 90 | 3.53 | 4.24 | 4.95 | 5.65 | 6.36 | 7.07 | 7.77 | 8.48 | ||
| 95 | 3.73 | 4.47 | 5.22 | 5.97 | 6.71 | 7.46 | 8.2 | 8.95 | ||
| 100 | 3.92 | 4.71 | 5.5 | 6.28 | 7.06 | 7.85 | 8.64 | 9.42 | ||
| 105 | 4.12 | 4.95 | 5.77 | 6.59 | 7.42 | 8.24 | 9.07 | 9.89 | ||
| 110 | 4.32 | 5.18 | 6.04 | 6.91 | 7.77 | 8.64 | 9.5 | 10.36 | ||
| 120 | 4.71 | 5.65 | 6.59 | 7.54 | 8.48 | 9.42 | 10.36 | 11.3 | ||
| 125 | 5.89 | 6.87 | 7.85 | 8.83 | 9.81 | 10.79 | 11.78 | |||
| 130 | 6.12 | 7.14 | 8.16 | 9.18 | 10.2 | 11.23 | 12.25 | |||
| 140 | 7.69 | 8.79 | 9.89 | 10.99 | 12.09 | 13.19 | ||||
| 150 | 8.24 | 9.42 | 10.6 | 11.78 | 12.95 | 14.13 | ||||
| 160 | 8.79 | 10.05 | 11.3 | 12.56 | 13.82 | 15.07 | ||||
| 180 | 9.89 | 11.3 | 12.72 | 14.13 | 15.54 | 16.96 | ||||
| 200 | 10.99 | 12.56 | 14.13 | 15.7 | 17.27 | 18.84 | ||||
| Note: For other larger sizes or customized sizes, please contact Daxun. | ||||||||||
SS 304 /304L Stainless Steel Flat Bar Type (3)
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This is a stainless steel flat bar made by multiple cold drawing processes with good uniformity.
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Cut from 304 Stainless steel flat bar and then processed to flatten the body and smooth the edges.
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Stainless steel flat bars produced by hot rolling, annealing and pickling (HRAP) at Daxun
Information available for reference and download
Daxun is a trustworthy stainless steel flat bar manufacturer
As a professional manufacturer, Daxun ensures that all the products we produce are of high quality. Therefore, we ensure that all stainless steels are certified by ISO9001, SGS, CE, OQC and more international quality standards. We also conduct strict quality control to ensure that the stainless steel angles have less defects. At Daxun, you can rest assured that all products are durable, high quality and excellent in performance.
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Leading stainless steel Flat bar Suppliers in China
At Daxun, we manufacture a complete range of stainless steel products including 304/304L stainless steel flat bars. As an integrated manufacturer, we have a comprehensive and extensive range of stainless steel flat bars available in a variety of lengths, sizes and finishes to meet the precise requirements of our customers. Daxun’s production facility in New Delhi houses some of the most selected and advanced steelmaking, cold rolling and hot rolling facilities in the world. We are proud to be a leading manufacturer and supplier of premium stainless steel flat bar products of high quality and high dimensional accuracy.Daxun has been engaged in international business for more than ten years. In 2023, the export volume exceeded 100 million US dollars, and the export volume ranked among the top Chinese stainless steel manufacturers. Daxun continuously improves its service skills. To serve the global market, it has established three export service facilities in China, cooperating with engineering companies, steel mills, and international trading companies. Daxun provides stainless steel chain services and has established long-term cooperative relations with dozens of well-known steel mills around the world. The inventory includes 50,000 tons of conventional stainless steel and 20,000 tons of duplex steel, nickel-based alloys, heat-resistant steel and other metals. Daxun’s stainless steel materials are of stable quality, and the varieties, specifications, and delivery weights strictly meet the standards.
304 /304L Stainless steel flat bar Introduction
- 304 stainless steel flat bar is a versatile, all-purpose material. It has strong corrosion resistance, is easily machinable, weldable, and polished. It is also valued for its strength, ductility, low maintenance, and aesthetic appeal.
- The most flexible and extensively used grade of stainless steel is 304, which includes a high concentration of nickel and chromium, making it extremely corrosion resistant. 316 stainless, like 304 stainless, comprises a high concentration of chromium and nickel and is utilised in applications that require corrosion resistance, particularly in maritime settings and chemical processing plants.
- When formability is necessary or cost is a consideration, 304 is usually the superior stainless alternative. 316 stainless is usually a preferable stainless option when the environment contains a lot of corrosive substances, the material will be exposed to moisture or water, or greater strength is required.
304/304LStainless Steel Flat Bars—Polished, Custom Cut
- Manufacturers request finished stainless steel flat bars for a variety of applications. Stainless steel flat bars are quite versatile, and commonly provide excellent strength and corrosion resistance for their end-use.
- tainless steel flat bar is most frequently sold with HRAP in 304 or 316 grades. The two materials offer a similar appearance, but 316 stainless steel delivers superior corrosion resistance.
Common Uses for 304 Stainless Steel Flat Bar
- 304/304L stainless steel flat bar (or rectangular bar) is widely used in a wide range of industries and has a variety of industrial uses. Due to its natural corrosion resistance as well as its strength and durability, stainless steel flat bar is suitable for a variety of situations. Some of the most common applications for stainless steel flat bar include structural applications, food service equipment, handrails, marine components, industrial equipment and medical device components, architectural lines, kitchen equipment, welding components, pulp and paper industry, pharmaceutical industry, chemical processing equipment, desalination plants, piping systems and cargo holds, gas purification, seawater systems, bridges, fire walls and explosion walls, oil storage tanks, heat exchanger structural design components, pressure vessels, shafts/rotors/impellers and shafts, water heaters, various.
The Benefits of 304 Stainless Steel Flat Bar
With its distinct qualities, stainless steel flat bar is the right material for the purposes listed above. Here are some of the advantages that make it such a popular option:
● Stainless steel flat bars are resistant to corrosion and feature a beautiful silver surface due to the presence of chromium. This passive layer protects the steel from corrosion and oxidation, making it an excellent choice for applications where corrosion is a problem.
●Stainless steel flat bar has a high strength-to-weight ratio, making it suitable for structural applications that demand a lightweight material. Furthermore, the flat bar’s resilience ensures that it can resist rigorous use and wear and tear over time.
●Low Maintenance: The flat bar is simple to clean and maintain, requiring no additional products. Simply wiping it down with a moist towel is typically enough to keep it looking brand new.
● Formability: The 304 and 316 grades are easily cut, welded, and drilled, making them ideal for fabricators to work with.
Manufacturing Process – Stainless Steel Flat Bar
Our stainless steel flat bars are manufactured with an emphasis on flatness as well as aesthetically pleasing shape and appearance. Stainless steel flat bars are suitable for a wide range of applications in various industries that require aesthetically pleasing appearance and shape of exposed parts.
Wide range of sizes
Whatever size of stainless steel flat bar you need, we have it for you. We offer stainless steel flat bars in thicknesses ranging from 3mm to 30mm, widths from 10mm to 300mm, and lengths of 1, 2, 3, 4 or 6 metres. If you don’t see the exact size you want, don’t worry. Just let us know when you order online or over the phone and we’ll do the rest.
304/304L Stainless Steel Flat Bar Packaging
Daxun Alloy ensures the best quality of packaging as it plays an important role in international freight where goods go through various channels to reach the final destination, so we pay special attention to packaging. We pack our goods in many ways depending on the product. We pack our products in many ways such as:
• Boxes and crates
• Shrink wrap
• Wooden pallets
• Wooden boxes
In every shipment of Daxun, we hope that the products will reach your hands safely and quickly.
Contact Daxun for high-quality 304 flat bar and other stainless steel flat bar products.
- Are you looking for various grades of stainless steel flat bar? Daxun Metals (Daxun Alloys) offers a wide range of stainless steel flat bar products suitable for a variety of applications. Daxun is well known for its extensive inventory of high-quality stainless steel flat bar for a variety of applications. As a leading manufacturer in China, we have supplied and fulfilled orders for quality 304 flat bar for organizations in the construction, automotive, and other industries for over two decades.
- Whether you are working on home appliances, construction, renewable energy, industrial artwork, frame construction, or any other project that requires versatile and strong steel, you can count on us to provide tailor-made solutions. We have a proven track record of providing high-quality products to all of our customers and are eager to help you with your steel needs. Our well-trained and experienced professionals are here to assist you. Contact us today to learn more.
Please fill in the form on the “Contact Us” page, or call our sales manager at “+86 13382898899”, we will contact you as soon as possible. Our WhatsApp is online, and email (Daxunalloy@gmail.com) will be checked within 6 hours. Every inquiry or message will be responded to promptly. In addition, we share market information with our customers every week
Samples can be provided free of charge, but the freight is borne by the customer, and will be refunded after cooperation.
We’ve exported to more than 42 countries, such as Canada, Chile, Kuwait, Germany, South Korea, Saudi Arabia, Singapore etc.
Our MOQ is 1 ton for 304 Stainless steel flat bar.
We have a complete organization from raw material purchasing to processing and shipment arranging. In the whole chain, the documentary people ad QC will look for and check it by precise requirements.The third party inspection is welcomed.
Trial orders can be delivered within a week. For regular orders, it takes two weeks roughly.