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Overview of 309S Stainless Steel

  • PGrade: AISI 309/309S
  • Fabrication : tôles laminées à froid, tôles laminées à chaud, tôles forgées
  • Norme : ASTM, ASME, GB, DIN, JIS, ISO, EN, BS
  • Type : tôles minces laminées à froid, tôles épaisses laminées à chaud
  • Surface : 2B, NO.1, NO.4, HL, BA, 8K, etc.
  • Longueur : 2438mm3048mm6000mm peut être personnalisé
  • Origine : 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

Données techniques

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
Élément % Présent (sous forme de produit)
C, H, P, L TW2)
Carbone (C) 0.2 0.2
Silicium (Si) 1.50 – 2.00 1.50 – 2.50
Manganèse (Mn) 2 2
Phosphore (P) 0.045 0.045
Soufre (S) 0.015 0.03
Chrome (Cr) 19.00 – 21.00 19.00 – 21.00
Nickel (Ni) 11.00 – 13.00 11.00 – 13.00
Azote (N) 0.11 -
Fer (Fe) Équilibre Équilibre
Forme du produit
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
Résistance à la traction Rm N/mm2 500 – 720 min. 550
Allongement min. en % Long Products 401) -
Flat Products 0.5 ≤ a/d ˂ 3 404)5) 304)5)6)
3 ≤ a/d 404)5) 304)5)6)
Densité (lb./ in^2) @ RT 0.29
Module d'élasticité en traction (psi x 10^6) 29
Chaleur spécifique (BTU/o F/lb.) 32 à 212 oF 0.12
Conductivité thermique (BTU/hr/ft^2/ft) 212oF 9
932oF 10.8
Coefficient moyen de dilatation thermique (po x 10^-6 par o F) 32 à 212oF 8.3
32 à 600oF 9.3
32 à 1 000oF 9.6
32 to 1,200oF 10
Résistivité électrique (micro ohms - cm) à 70oF 39.8
Gamme de points de fusion (oF) 2550 – 2650
Résistance à l'oxydation - Service continu(oF) 2000
Résistance à l'oxydation - Service intermittent(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

Choisissez Daxun et faites en sorte que vos clients soient satisfaits.

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

Qualité, livraison, inspection

  • Daxun contrôle strictement la qualité des produits. Avant de passer commande, nous vous enverrons la garantie du produit. Si vous avez besoin d'échantillons pour les tester, nous pouvons également vous les envoyer gratuitement.
  • Au cours du processus de production, nous mesurons le diamètre, l'épaisseur et la surface du produit. Notre délai de livraison standard est de 7 à 15 jours, sauf pour certains produits de taille spéciale, pour lesquels le délai de livraison peut atteindre 20 jours.
    Nos délais de livraison sont strictement conformes au contrat.
  • Aider les agences tierces des clients à se rendre à l'usine pour l'inspection
  • Fournir des échantillons gratuits aux clients pour qu'ils les testent
  • Soutien à l'inspection sur site ou à l'inspection vidéo en usine

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

Haute résistance
Résistance à la corrosion
Résistance à la chaleur
Résistance aux basses températures
Protection de l'environnement
Performance de soudage

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Grade Type Épaisseur Surface
Austénitique 304/304H/304L/304J1 0,25-150 mm 2B/BA/NO.4/8K/SB/HL/NO.1
321 0,4-80 mm 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 0,4-3,0 mm 2B/BA/NO.4/8K/SB/HL
Ferrite ultra pure 443 0,4-2,0 mm 2B
436L/439/444/441 0,5-3,0 mm 2B、2D
409L 0,4-2,5 mm 2B、2D
Grade Type Épaisseur Original
Acier résistant à la chaleur 309S 0,5-40 mm CHN
310S 0,5-40 mm CHN
Acier duplex 2101 1,5-50 mm CHN
2304 3.0-50mm CHN
2205 0,5-60 mm CHN
2507 1.0-60mm SWE / JPN / CHN
Acier super austénitique N08904 0,6-50 mm SWE / JPN / CHN
S31254 0,5-50 mm SWE / JPN / CHN
N08926 0,5-50 mm SWE / JPN / CHN
N08367 0,5-50 mm SWE / JPN / CHN
Alliage base nickel N08031 1.0-50mm US / JPN / GER
N08810/N08800 0,8-50 mm US / JPN / CHN
N08028 1.0-20mm US / GER / JPN
N08020 1.0-20mm US / GER / JPN
N08825 0,8-40 mm US / GER / SWE / JPN / CHN
N10276 0,5-50 mm US / GER / JPN
N06022 1.0-50mm US / GER / JPN
N06625 0,8-20 mm US / GER / CHN
N04400 1.0-20mm US / GER / JPN
N06600 1.0-50mm US / GER / JPN / CHN
N02201 0,5-20 mm US / JPN
Titane TA1/Gr1 0,5-50 mm JPN / CHN
TA2/Gr2 0,5-50 mm JPN / CHN
Matériel de soudage ERNiCrMo-13 1.2、2.4mm GER
ERNiCrMo-3 2,4 mm GER
ERNiCrMo-4 2,4 mm ÉTATS-UNIS

The surface and shape of 309S stainless steel plate (7)

Daxun est un fabricant de plaques d'acier inoxydable digne de confiance.

En tant que fabricant professionnel, Daxun s'assure que tous les produits qu'il fabrique sont de haute qualité. Par conséquent, nous veillons à ce que toutes les plaques d'acier inoxydable soient certifiées ISO9001, SGS, CE, OQC et autres normes de qualité internationales. Chez Daxun, vous avez l'assurance que tous les produits sont durables, de haute qualité et très performants.

Projets et produits récents

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Daxun stainless steel plates are in high demand, have good quality, oxidation resistance, and are honest and trustworthy.

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.

Stainless steel materials “more, faster, better, and cheaper” customised services

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 services a large number of consumers in a variety of sectors.

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.

Customers with urgent needs can rest assured that we will supply stainless steel plate products for elevated temperatures on time and quickly.

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.

We provide excellent quality and high-quality services.
  • 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.
We save our customers time, materials and energy, and ultimately save them money.

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.

Daxun Alloys: Premium ASTM A240 309/309s Stainless Steel Plates

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.

Leading Stainless Steel Sheet Suppliers in China

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.

Order Stainless Steel Sheets by Phone or Online.

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 [email protected].

Our delivery time is only one to two days.

 

Daxun Alloys: Customized High Chromium Stainless Steel Sheet Solutions

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.

Exporting ASTM A240 309/309s Stainless Steel Plates Worldwide

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:

  1. Brushed finish for a sleek, modern look
  2. 2B smooth finish for a clean, uniform appearance
  3. 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.

Our innovative nesting processing methods optimize material and cutting utilization.

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.

Important Safety Note:

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.

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