Overview of 309S Stainless Steel
- PGrade: AISI 309/309S
- Manufacturing: cold-rolled plate, hot-rolled plate, forged plate
- Standard: ASTM, ASME, GB, DIN, JIS, ISO, EN, BS
- Type: cold-rolled thin plate, hot-rolled thick plate
- Surface: 2B, NO.1, NO.4, HL, BA, 8K, etc.
- Length: 2438mm3048mm6000mm can be customized
- Origin: TISCO, Baosteel, Pohang, Tsingshan, Delong
Overview of 309S Stainless Steel
309S stainless steel is a low-carbon version of the 309 alloy, specifically designed to enhance ease of fabrication and weldability. As an austenitic heat-resistant alloy, it offers exceptional oxidation resistance and high temperature corrosion resistance, making it a reliable choice for demanding environments. The low carbon content of 309S minimizes carbide precipitation, ensuring stability and performance at elevated temperatures. This combination of properties makes 309S stainless steel an ideal material for applications requiring both durability and high temperature stability.
Properties and Characteristics
309S stainless steel stands out due to its unique blend of properties, making it highly suitable for high-temperature applications. With a high chromium content of 23%, it provides excellent oxidation resistance and high temperature corrosion resistance. The alloy also contains a moderate amount of nickel, contributing to its overall heat resistance and stability. However, it is important to note that 309S has only moderate resistance to carbon absorption, which may limit its use in highly carburizing atmospheres. Despite this, its robust performance in other high-temperature conditions makes it a valuable material in various industrial applications.
Heat Resistance and Applications
Technical Data
- Parameter
- Chemical Compositions
- Mechanical properties
- PHYSICAL PROPERTIES
- Standard
ASTM A240 309/309s Stainless Steel Plates Specification | ASTM A240 / ASME SA240 |
ASTM A240 309/309s Stainless Steel Plates Manufacturing Plate Process | Hot Rolled (HR) / Cold Rolled (CR) |
ASTM A240 309/309s Stainless Steel Plates Grades | 202 / 304 / 304L / 304H / 309S / 310S / 316 / 316L / 316Ti / 317L / 321 / 321H / 347 / 347H / 904L etc. |
UNS No. – UNS S30400, UNS S30403, UNS S31008, UNS S31620, UNS S31603, UNS S31603, UNS S31635, UNS S31703, UNS S32100, UNS S34700, UNS S34709, UNS S8904 | |
EN No. – 1.4301, 1.4307, 1.4845, 1.4401, 1.4404, 1.4571, 1.4438, 1.4541, 1.4550, 1.4551, 1.4539 | |
ASTM A240 309/309s Stainless Steel Plates Thickness | 0.6 MM TO 80 MM THICKNESS |
ASTM A240 309/309s Stainless Steel Plates Width | 1250 MM / 1500 MM / 2000 MM / 04 Feet / 05 Feet and Custom Cut Width as Per Requirement |
ASTM A240 309/309s Stainless Steel Plates Length | 2400 MM / 2420 MM / 6000 MM / 08 Feet / 10 Feet / Coil Cut and Custom Cut Length as Per Requirement |
ASTM A240 309/309s Stainless Steel Plates Surface Finish | 2B, 2D, BA, MATT, MATT PVC, No.4, No.5, SB, HR, No.8, Mirror, Hairline, Brush, Textured, Oil base wet Polished, Both sides Polished available. |
ASTM A240 309/309s Stainless Steel Plates Coating | PVC coating Normal / Laser, Film: 100 micrometer, Color: black/white. |
ASTM A240 309/309s Stainless Steel Plates Other Testing | NACE MR0175, Ultrasoung TEST, IGC TEST, Intergranular Corrrosion Test as per ASTM A262 Practice E, Charpy Impact Test, Macro, Grain Size, Hardness, etc. |
ASTM A240 309/309s Stainless Steel Plates Value Added Services | Gas Cutting / CNC Plasma Cutting / Profiling / Rolling / Bending / Sheet Metal Fabrication / Drill / Punch / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
ASTM A240 309/309s Stainless Steel Plates Packaging | Loose / Carrate / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps |
ASTM A240 309/309s Stainless Steel Plates Shipment & Transportation | By Road – Truck / Train Partial Load, Full Load, By Sea – Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air – Freighter Civil Passenger and Cargo Planes |
ASTM A240 309/309s Stainless Steel Platesheet Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From聽NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS, Bureau of Indian Standards BIS Approved ETC |
Element | % Present (in product form) | |
C, H, P, L | TW2) | |
Carbon (C) | 0.2 | 0.2 |
Silicon (Si) | 1.50 – 2.00 | 1.50 – 2.50 |
Manganese (Mn) | 2 | 2 |
Phosphorous (P) | 0.045 | 0.045 |
Sulfur (S) | 0.015 | 0.03 |
Chromium (Cr) | 19.00 – 21.00 | 19.00 – 21.00 |
Nickel (Ni) | 11.00 – 13.00 | 11.00 – 13.00 |
Nitrogen (N) | 0.11 | – |
Iron (Fe) | Balance | Balance |
Product Form | |||||
C, H, P | L | TW* | |||
Thickness a or diamter d (mm) | a ≤ 12 | d ≤ 25 | a=25 | ||
Hardness HB max. 1) 2) 3) | 216 | – | |||
Proof Strength3) | Rp0.2 N/mm2 | 190 | 230 | ||
Rp1.0 N/mm2 | 230 | 270 | |||
Tensile Strength | Rm N/mm2 | 500 – 720 | min. 550 | ||
Elongation min. in % | Long Products | 401) | – | ||
Flat Products | 0.5 ≤ a/d ˂ 3 | 404)5) | 304)5)6) | ||
3 ≤ a/d | 404)5) | 304)5)6) |
Density (lb./ in^2) @ RT | 0.29 | |
Modulus of Elasticity in Tension (psi x 10^6) | 29 | |
Specific Heat (BTU/o F/lb.) | 32 to 212 oF | 0.12 |
Thermal Conductivity (BTU/hr/ft^2/ft) | 212oF | 9 |
932oF | 10.8 | |
Mean Coefficient of Thermal Expansion (in. x 10^-6 per o F) | 32 to 212oF | 8.3 |
32 to 600oF | 9.3 | |
32 to 1,000oF | 9.6 | |
32 to 1,200oF | 10 | |
Electrical Resistivity (micro ohms – cm) | at 70oF | 39.8 |
Melting Point Range (oF) | 2550 – 2650 | |
Oxidation Resistance – Continuous Service(oF) | 2000 | |
Oxidation Resistance – Intermittent Service(oF) | 1800 |
UNS S30900 | UNS S30908 | UNS S30909 |
ASTM A240 | ASTM A240 | ASTM A240 |
ASTM A480 | ASTM A480 | ASTM A480 |
ASME SA240 | ASME SA240 | ASME SA240 |
AMS 5523 | AMS 5523 | AMS 5523 |
Choose Daxun and make your customers satisfied.
Properties and Characteristics
309S stainless steel stands out due to its unique blend of properties, making it highly suitable for high-temperature applications. With a high chromium content of 23%, it provides excellent oxidation resistance and high temperature corrosion resistance. The alloy also contains a moderate amount of nickel, contributing to its overall heat resistance and stability. However, it is important to note that 309S has only moderate resistance to carbon absorption, which may limit its use in highly carburizing atmospheres. Despite this, its robust performance in other high-temperature conditions makes it a valuable material in various industrial applications.
Heat Resistance and Applications
Designed for high-temperature environments, 309S stainless steel excels in applications such as furnace components, oven linings, fire box sheets, and catalytic recovery systems. It can withstand peak temperatures up to 1900°F (1038°C) under constant conditions and up to 1850°F (1010°C) during frequent thermal cycling. Additionally, 309S stainless steel is resistant to high temperature sulfur-bearing atmospheres, making it suitable for use in neutral salt pots and other corrosive settings. Its versatility and durability under extreme conditions make it a preferred choice for many industrial applications.
Chemical Composition and Standards
-
The chemical composition of 309S stainless steel includes:
- Carbon: 0.08% max
- Chromium: 23.0%
- Nickel: 14.0%
- Manganese: 2.0%
- Silicon: 1.0%
- Phosphorus: 0.045% max
- Sulfur: 0.03% max
Quality, delivery, inspection
- Daxun strictly controls product quality. Before placing an order, we will send you the product warranty, or if you need samples for testing, we can also send samples for free.
- 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 to customers for testing
- Support on-site or video factory inspection
This alloy meets several industry standards, including ASTM A240, A276, A312, and A479, as well as ASME SA240, SA276, SA312, and SA479. These standards ensure that 309S stainless steel maintains consistent quality and performance across various applications.
Fabrication and Welding
309S stainless steel is known for its excellent weldability and ease of fabrication using standard shop practices. It can be welded using AWS E309-16 covered electrodes or ER309 bare wire, ensuring strong and reliable joints. The alloy also boasts a machinability rating of 43% relative to AISI B1112 steel, making it relatively easy to machine. Room temperature forming is recommended, and the alloy can be polished to achieve a high finish. These fabrication and welding properties make 309S stainless steel a versatile and practical choice for a wide range of industrial applications.
309/309S plate stainless steel Features
Daxun Let your brand improve rapidly
- Gallery
- Other product series
Grade | Type | Thickness | Surface |
Austenitic | 304/304H/304L/304J1 | 0.25-150mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
321 | 0.4-80mm | 2B/BA/NO.4/8K/SB/HL/NO.1 | |
316/316L/317L/316Ti | 0.3-80mm | 2B/BA/NO.4/8K/SB/HL/NO.1 | |
Ferrite | 430 | 0.4-3.0mm | 2B/BA/NO.4/8K/SB/HL |
Ultra Pure Ferrite | 443 | 0.4-2.0mm | 2B |
436L/439/444/441 | 0.5-3.0mm | 2B、2D | |
409L | 0.4-2.5mm | 2B、2D | |
Grade | Type | Thickness | Original |
Heat-resistant Steel | 309S | 0.5-40mm | CHN |
310S | 0.5-40mm | CHN | |
Duplex Steel | 2101 | 1.5-50mm | CHN |
2304 | 3.0-50mm | CHN | |
2205 | 0.5-60mm | CHN | |
2507 | 1.0-60mm | SWE / JPN / CHN | |
Super Austenitic Steel | N08904 | 0.6-50mm | SWE / JPN / CHN |
S31254 | 0.5-50mm | SWE / JPN / CHN | |
N08926 | 0.5-50mm | SWE / JPN / CHN | |
N08367 | 0.5-50mm | SWE / JPN / CHN | |
Nickel Base Alloy | N08031 | 1.0-50mm | US / JPN / GER |
N08810/N08800 | 0.8-50mm | US / JPN / CHN | |
N08028 | 1.0-20mm | US / GER / JPN | |
N08020 | 1.0-20mm | US / GER / JPN | |
N08825 | 0.8-40mm | US / GER / SWE / JPN / CHN | |
N10276 | 0.5-50mm | US / GER / JPN | |
N06022 | 1.0-50mm | US / GER / JPN | |
N06625 | 0.8-20mm | US / GER / CHN | |
N04400 | 1.0-20mm | US / GER / JPN | |
N06600 | 1.0-50mm | US / GER / JPN / CHN | |
N02201 | 0.5-20mm | US / JPN | |
Titanium | TA1/Gr1 | 0.5-50mm | JPN / CHN |
TA2/Gr2 | 0.5-50mm | JPN / CHN | |
Welding Material | ERNiCrMo-13 | 1.2、2.4mm | GER |
ERNiCrMo-3 | 2.4mm | GER | |
ERNiCrMo-4 | 2.4mm | US |
The surface and shape of 309S stainless steel plate (7)
Information available for reference and download
Daxun is a trustworthy stainless steel plate manufacturer
As a professional manufacturer, Daxun ensures that all the products we produce are of high quality. Therefore, we ensure that all stainless steel plates are certified by ISO9001, SGS, CE, OQC and more international quality standards.We also have strict quality control to ensure that the stainless steel plates have less defects. At Daxun, rest assured that all products are durable, high quality and high performance.
Recent hot case projects and products
Daxun International has been in international business for over ten years. In 2022, its export revenue surpassed $100 million, and its export volume was among the top Chinese stainless steel processing enterprises. To serve abroad markets, we have built three export service facilities in China and collaborated with engineering organisations, steel mills, and international trade companies. We continue to enhance our service capabilities, establishing three export service bases in China, and collaborating with engineering firms, steel mills, and international trading firms to grow into new markets.
Daxun has long-standing relationships with dozens of well-known steel mills throughout the world, supplying 30,000 tonnes of standard stainless steel plates and 20,000 tonnes of metals such as duplex steel, nickel-based alloys, and heat-resistant steel. Daxun supplies heat resistant alloys for various high-temperature applications. Daxun’s stainless steel materials are of consistent quality and never counterfeited. The kinds, specifications, and delivery weights strictly adhere to the standards.
Daxun has several stainless steel plate processing equipment, a professional physical and chemical testing centre, and “cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying” production lines. Daxun’s stainless steel plates are used in components like lead pans for thermal processing equipment. Services are provided in approximately 30 industries, including vehicles, home appliances, lifts, new energy, vacuum semiconductors, food and beverage/biofermentation, petrochemicals, and energy equipment. Collaborate with steel mills, research institutes, and other organisations to offer comprehensive services ranging from project design and material development to processing and manufacturing process optimisation.
First, it refers to Daxun’s stainless steel plate kinds and specifications, as well as its spot inventories. Daxun has strategic resource assistance from many large steel mills at home and abroad, ensuring the stability of the stainless steel plate supply chain and meeting clients’ individualised needs on specific materials. Additionally, Daxun’s stainless steel plates can withstand maximum temperature nitriding conditions.
Secondly, Daxun’s processing technology is diverse. processes, including stainless steel plate cutting, grinding, cutting, forming, welding, and machining, to provide customers with “one-stop” service.
Daxun’s stainless steel company focuses on the key sectors of equipment manufacture. Far, it has served over 30,000 customers, including over 10,000 active customers from more than 30 industries and a big number of major businesses. This demonstrates Daxun’s extensive service experience, as well as its widespread consumer recognition across industries. Daxun also provides materials with enhanced creep resistance for high-temperature applications.
Behind the speed is the support of the system, including information flow, logistics, and capital flow. For example, in terms of information flow, Daxun’s order data is pushed to the logistics system in real time, seamlessly connected; in terms of logistics, the processing center is close to ports, rivers and seas, with reasonable scheduling, rapid response, storage and transportation linkage, and efficient loading to ensure that the task is completed on time.
- Quality is belief, and integrity is a business card. Daxun pioneered the concept of “excellent performance management” and promoted the “PDCA+Lean” management model, making “Daxun = assured quality” the company’s business card. In terms of materials, Daxun Stainless Steel has achieved full traceability of each steel plate from the ERP system, including varieties, specifications, and origins, and advocated and encouraged industry anti-counterfeiting.
- Daxun Stainless Steel relies on technology for processing, 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, closely monitors during sales, and provides worry-free service guarantees after sales.
Daxun’s professional advantages enable us to provide the most cost-effective material recommendations based on customer needs, and minimize costs for customers through methods such as continuous processing and nesting processing.
We offer a wide range of ASTM A240 309/309s Stainless Steel Plates in stock. Our inventory includes thicknesses from 6mm to 80mm and widths of 1250mm, 1500mm, and 2000mm. We accommodate both large and small orders with no minimum quantity requirement. Our cut-to-size service ensures you get exactly what you need. Daxun’s stainless steel plates perform well under peak temperature oxidizing conditions.
Current Offers: Enjoy a 2% discount on orders over $25,000. We provide free insurance and competitive shipping rates, ensuring the best value without compromising quality.
Customization and Packaging: Our plates are available in various thicknesses, widths, and lengths to suit your specifications. We take utmost care in packaging, using plastic sheets and sturdy wooden containers. Our waterproof packaging includes proper strapping and hanging points for safe transportation.
At Daxun Alloys, we combine top-quality products with flexible ordering options and secure shipping. Choose us for premium stainless steel plates tailored to your needs.
Daxun Alloys: Premier Stainless Steel Sheet Supplier in China
As a well-recognized manufacturer, trader, and supplier, Daxun Alloys leads the industry in ASTM A240 309/309s Stainless Steel Plates. Our products are crafted with precision, adhering to international quality standards. Our ISO 9001:2008 certification underscores our commitment to excellence. We specialize in exporting high-quality stainless steel plates worldwide. Our ASTM A240 309/309s Stainless Steel Plates come with comprehensive mill test reports and can be customized to your specifications. We offer widths up to 2000 mm and custom lengths to suit your needs. Daxun Alloys excels in sourcing rare grades and non-standard sizes, meeting our clients’ unique requirements. Our expertise extends to processing all ASTM A240 SS 304 Steel Plates, which we can cut to precise dimensions. Choose Daxun for unparalleled quality, customization, and global supply capabilities in stainless steel products.
There has never been an easier way to get stainless steel sheets. Simply refer to the simple and detailed instructions on our website. Alternatively, our sales staff will be happy to take your order or answer any questions when you call +86 13382898899 or email daxunhejin@gmail.com.
Our delivery time is only one to two days.
We pride ourselves on offering tailored stainless steel sheets to match your exact specifications. Our versatile range includes:
Three distinct finishes to suit various applications
A wide array of sizes to meet diverse project needs
Custom sizing options for unique requirements
Our stainless steel sheets are available in thicknesses ranging from 0.3 mm to 30 mm. Sheet dimensions span from compact 50 x 50 mm pieces to expansive 2500 x 1250 mm sheets.
To ensure perfect fit for your projects, we offer a complimentary unlimited cutting service. Our state-of-the-art cutting machine guarantees precision with every cut. This free service allows you to order exactly what you need, eliminating waste and reducing costs.
At Daxun, we combine quality products with unparalleled customization options. Our commitment to meeting your specific needs sets us apart in the industry. Choose Daxun for stainless steel sheets that fit your project requirements precisely.
We’re thrilled to ship our ASTM A240 309/309s stainless steel plates to countries all around the globe! Whether you’re in Saudi Arabia, Turkey, or the United Arab Emirates; Singapore, Japan, or South Korea; the United States, Canada, or Mexico—we’ve got you covered. Our reach extends to Europe with nations like Germany, France, and the United Kingdom, as well as throughout Africa, Asia, the Middle East, and the Far East. No matter where you are—from bustling cities to serene landscapes—we’re here to meet your stainless steel needs with joy and efficiency!
Daxun Alloys: Premium 309/309s Grade Stainless Steel Sheets
We offer 309/309s grade stainless steel sheets in an array of attractive finishes:
- Brushed finish for a sleek, modern look
- 2B smooth finish for a clean, uniform appearance
- 8K mirror finish for a highly reflective surface
Each sheet comes with a protective film on the finished side. This film safeguards the surface from wear and marks during handling and installation. It’s easily removable after fabrication, ensuring your product remains pristine. The back side is left unfinished for versatility.
Our 309s Grade Stainless Steel Sheet is a popular choice among customers. It boasts excellent weldability and formability, making it ideal for various applications. Its good corrosion resistance adds to its durability and longevity in diverse environments.
Choose Daxun for high-quality, versatile stainless steel sheets that meet your specific needs. Our range of finishes and protective features ensure you receive a product that’s ready for immediate use or further fabrication.
At the same time, Daxun achieves continuous cost reduction and efficiency improvement by promoting lean improvement activities and passing the benefits to customers. Daxun also has a complete product traceability system and timely quality objection handling, which relieves customers’ concerns.
The edges of the metal sheets we sell are not polished, ground or finished, so they may be sharp, just like the edges of any stainless steel sheet. We remind users to use, install and handle these devices with care.