Basic Info.
Model NO.
309 Stainless Steel Tube
Type
Stainless Steel Pipes
Standard
ASTM, AISI, GB, JIS, EN
Certification
ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
Surface Treatment
Pickling
Surface
Pickling, Polishing, Ba
Delivery State
Solution Annealing
Transport Package
Wooden Box + Strapping
Specification
OD 6.35mm-OD 1219mm
Product Description
Stainless Steel 309 Specification | Stainless Steel 309 / 309S, ASTM A312 Stainless Steel |
SS UNS S30908 Pipe | 309s Stainless Steel Pipe |
ASTM A312 TP 309 - 309S SS Seamless Pipe Size | 4 to 510mm W. T.: 0.5 to 50mm |
WERKSTOFF Welded Pipe Size | 5.0 mm - 1219.2 mm |
ASTM A312 TP 309 - 309S Stainless Steel EFW Pipe size | 5.0 mm - 1219.2 mm |
Stainless Steel WERKSTOFF Pipe Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
309 - 309S Stainless Steel Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
SS UNS S30908 Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
309s Stainless Steel Tube wall thickness | 0.020″ -0.220″, (special wall thicknesses available) |
TP309 SS Length | Single Random, Double Random, Standard & Cut length Pipe & Tube |
ASTM A 358 SS 309 - 309S Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
ASTM A 312 SS 309 - 309S Form | Round, Hydraulic, 'U' bent or Hollow,LSAW, Boiler, Straight Pipe, Clad Pipe, Rectangular, Square Pipe Etc |
Stainless Steel 309 / 309S Type | Welded, Seamless, ERW, EFW, Fabricated Pipe, 'U' bent or Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Tube etc |
TP309 SS End | Plain End, Beveled End, Treaded Pipe |
ASTM A312 TP 309 - 309S SS Marking | All 309s Stainless Steel Pipe are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
SS TP309 - 309S Application | Oil Pipe & Tube, Gas Pipe & Tube, Fluid Pipe & Tube, Boiler Pipe & Tube, Heat exchanger Tube |
ASTM A312 Stainless Steel Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
Marking | All 309s Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
309s stainless steel tubing Testing & Inspection | Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing |
SS 309 Specialize in | Alloy 309 / 309S Large Diameter Pipe |
Stainless Steel 309 Capillary Tube |
Stainless Steel 309S Heat Exchanger & |
309 SS Condenser Tube |
Stainless Steel 309S Test Certificate | Manufacturer Test Certificate |
Laboratory Test Certificate from Govt. Approved Lab. |
Under Third Party Inspection |
Manufacturers of 309 / 309S Stainless Steel Pipe | TISCO stainless steel pipes |
Baosteel stainless steel pipes |
Qingshan stainless steel pipes |
ATI stainless steel, USA |
Tubacex Tubos Inoxidables S.A., Spain |
Schoeller Bleckmann, Austria |
Seah Steel Corporation, South Korea |
Commonly used in high-temperature environments, the chromium-nickel austenitic stainless steel pipes 309, 309S, and 309H offer outstanding resistance to oxidation, heat, and corrosion, thanks to their high chromium and nickel content. These stainless steel pipes also exhibit excellent strength at both room and elevated temperatures. The primary difference between 309 and 309S stainless steel pipes lies in their carbon content; 309S has a lower carbon content, reducing carbide precipitation and enhancing weldability. Meanwhile, 309H has a higher carbon concentration than 309, which increases its resistance to creep.
Stainless Steel Welded TubesOur stainless steel tubular products, crafted from stainless steel strips, are meticulously roll-formed and fusion-welded along the longitudinal seam. Daxun's welding process uniquely refrains from using any filler metal, ensuring superior quality and durability.
309 Stainless Steel Tube Features
- Provides exceptional corrosion resistance.
- More resistant to marine atmospheres compared to Alloy 304.
- Frequently utilized at elevated temperatures for their remarkable oxidation resistance.
- Exhibits high resistance to sulfite liquors.
- Regarded as heat-resistant alloys.
- Destructive scaling temperature is approximately 2000°F.oF
- Excellent scaling resistance for continuous and intermittent service.
Stainless Steel Drawn TubeStainless steel tubular products are rolled and then re-drawn to their final size. This rolling and drawing process is perfect for producing thick-walled, large-diameter tubes that can't be rolled directly to size, offering cost savings over seamless tubes. All drawn tubes are bright annealed for superior finish.
Daxun Advantages
- Variety: From small to large diameter stainless steel pipes, we provide a comprehensive range of sizes and grades, including 304L, 316L, 317L, 321, 309, 347, 2205, and more.
- Flexibility: Whether you require seamless or welded steel pipes, our lengths are tailored to meet your specific project needs.
Quality - Standards: Our stainless steel pipes adhere to rigorous standards such as ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, ensuring reliability and performance.
- Custom Orders: Seeking special size stainless steel pipes? We offer a variety of custom options at competitive prices with convenient online ordering.
Stainless Steel Seamless TubeOur stainless steel tubular products are seamlessly drawn from the hollow section of the tube, created via piercing or hot extrusion processes. Ideal for large diameter-to-wall thickness ratios, these seamless tubes offer superior external dimensional tolerances.
Quality, Delivery, Inspection
- Daxun conducts comprehensive quality assurance tests, including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These ensure the material's suitability for the intended application.
- During production, we rigorously measure the diameter, thickness, and surface of our products. Standard delivery time is 7-15 days, with an extension to 20 days for special sizes.
Our delivery schedule is strictly adhered to as per contract. - We support customer third-party agencies for factory inspections.
- We offer free samples for customers to test.
- We support both on-site and video factory inspections.
Daxun Stainless Steel Pipe Manufacturing Capabilities
Our forming capabilities encompass state-of-the-art extrusion and cold working assets, making us a leader in manufacturing tube and pipe products. We boast one of the world's largest pilger mills and employ unique hydroforming processes to create top-quality fittings.
Unmatched Pipe Processing Capabilities by Daxun
As a vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. offers a comprehensive one-stop shop. We handle all aspects of your project, whether it's a complete undertaking or a single machining job. Our services include Straightening, Drilling, Honing, Trepanning, Cutting, Testing, Boring, Machining, Laser Welding, Polishing, Turning, and specialized services.
Superior Pipe Solutions for Enhanced Performance
With our vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun leads the industry with the most comprehensive pipe extrusion capabilities. We manufacture the longest lengths and largest diameter pipes, meeting the highest standards in the industry.
Daxun supplies the power generation market with a diverse range of products including ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our solutions cater to nuclear, coal-fired, renewable energy, and combined cycle applications.
Chemical Composition of 309 Stainless Steel Pipe: Meticulously engineered for superior performance, our 309 stainless steel pipe offers an optimal blend of elements, ensuring unmatched durability and reliability for high-temperature applications.
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 |
Mechanical Properties of 309 Stainless Steel Pipe: Designed to withstand the most demanding conditions, our 309 stainless steel pipe exhibits exceptional mechanical properties, delivering robustness and longevity in every use.
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) |
309 Stainless Steel Pipe: Discover the epitome of quality and innovation with our 309 seamless pipe ASTM A312 high-temperature furnace tubes. Featuring a polished surface, these pipes are crafted to excel in rigorous environments, providing outstanding heat resistance and seamless performance. Physical Properties: Engineered with precision, the physical properties of our 309 stainless steel pipe offer unparalleled resistance to corrosion and oxidation, making them an ideal choice for high-stress, high-temperature scenarios.
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 |
Address:
B108, No. 32-1, Chengnan Road, Xinwu District, Wuxi, Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000, OHSAS/ OHSMS 18001, IATF16949, HSE, ISO 14064, QC 080000, GMP, BSCI, BRC, SA 8000, QHSE, HACCP, ISO 13485, EICC, ANSI/ESD, SEDEX, ISO 22000, AIB, WRAP, GAP, ASME, ISO 29001, HQE, IFS
Company Introduction:
Founded in 2003, Daxun Alloy is a leading global metal material manufacturer. Headquartered in Wuxi, China, the company has multiple production bases and sales offices around the world. Daxun Alloy focuses on the development, production and sales of various stainless steels, titanium alloys, high-temperature alloys, etc. For general industry, construction, aerospace, energy, chemical industry, medical and other fields.
China, Daxun Metal Group is a global vertically integrated metal material manufacturer and stockist. Daxun can provide finished products and customized full-process services and professional technical services. Currently, the group has 600 employees and covers a total area of 130, 000 square meters. Daxun has a standing inventory of 50, 000 tons of stainless steel, 5, 000 tons of nickel-based alloys, and 2, 000 tons of pure titanium and titanium alloys. The main product forms are metal plates, metal coils, metal pipes, and metal bars. The metal materials produced by Daxun are market leaders for marine, energy, military, general industrial and aerospace applications. In addition, the company also produces seamless pipes, plates, forgings and other metal materials for power generation and oil and gas applications; Commercial and military alloy products; And metal alloys and other metal products for the forging industry.