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 utilized in high-temperature settings, the chromium-nickel austenitic stainless steel pipes 309, 309S, and 309H are renowned for their exceptional resistance to oxidation, heat, and corrosion, attributed to their substantial chromium and nickel content. These pipes exhibit remarkable strength at both ambient and elevated temperatures. A key distinction lies in their carbon content: 309S pipes have reduced carbon, diminishing carbide precipitation and enhancing weldability, while 309H contains higher carbon than the standard 309, increasing its creep resistance.
Stainless Steel Welded TubesCrafted from stainless steel strips, our stainless steel tubular products are roll-formed and longitudinally fusion-welded. Notably, Daxun's welding process eschews the use of any filler metal, ensuring purity and consistency.
309 Stainless Steel Tube Features
- Offers superior corrosion resistance
- Exhibits greater resilience to marine atmospheres compared to Alloy 304
- Ideal for high-temperature applications due to outstanding oxidation resistance
- Displays high resistance to sulfite liquors
- Widely regarded as heat-resistant alloys
- Withstands destructive scaling up to approximately 2000oF
- Maintains excellent scaling resistance in both continuous and intermittent service
Stainless Steel Drawn TubeOur stainless steel tubular products undergo rolling and subsequent re-drawing to achieve their final size. This method is optimal for producing thick-walled, large-diameter tubes that cannot be directly rolled to size, all while offering cost advantages over seamless tubes. Each drawn tube is bright annealed for superior finish.
Daxun Advantages
- Variety: From small to large-diameter stainless steel pipes, we offer an extensive range of sizes and grades, including 304L, 316L, 317L, 321, 309, 347, 2205, and more.
- Flexibility: Whether your needs call for seamless or welded steel pipes, our offerings are tailored to meet your specific project requirements.
Quality - Standards: Our stainless steel pipes adhere to rigorous standards such as ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, ensuring unparalleled reliability and performance.
- Custom Orders: Need special-sized stainless steel pipes? We provide a variety of custom options at competitive prices, with the convenience of online ordering.
Stainless Steel Seamless TubeCrafted from hollow sections through piercing or hot extrusion, our stainless steel seamless tubes are ideal for applications requiring substantial diameter-to-wall thickness ratios. They boast excellent external dimensional tolerances.
Quality, Delivery, Inspection
- Daxun is committed to rigorous quality assurance, conducting tests such as flattening, pitting resistance, mechanical integrity, hardness, material identification, and expansion tests. These ensure the material's suitability for its intended applications.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface of each product. Our standard delivery timeframe ranges from 7-15 days, extending to 20 days for special-sized products.
We strictly adhere to the agreed delivery schedules outlined in our contracts. - We support inspections by third-party agencies on behalf of our customers.
- We offer free samples to customers for testing purposes.
- We facilitate on-site or video factory inspections for customers.
Daxun Stainless Steel Pipe Manufacturing Capabilities
Our forming capabilities are second to none, boasting state-of-the-art extrusion and cold working assets designed to manufacture superior tube and pipe products. We pride ourselves on operating one of the world's largest pilger mills, complemented by our unique hydroforming processes that allow us to craft precise fittings.
Unmatched Pipe Processing Capabilities by Daxun
As a vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. offers a comprehensive one-stop shop for all your needs. Whether it's managing an entire project or handling specialized machining jobs, we have you covered. Our extensive range of services includes Straightening, Drilling, Honing, Trepanning, Cutting, Testing, Boring, Machining, Laser Welding, Polishing, Turning, and a variety of Specialized Services.
Superior Pipe Solutions for Every Need
Utilizing vertical and horizontal presses ranging from 12,000 to 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. boasts the world's most comprehensive pipe extrusion capabilities. Our technology facilitates the production of the industry's longest lengths and largest diameter pipes, ensuring that we meet all your extrusion needs.
Jiangsu Daxun Alloy Co., Ltd. proudly supports the power generation market with a wide array of products including ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. We cater to nuclear, coal-fired, renewable energy, and combined cycle applications, ensuring robust and reliable solutions for all energy sectors.
Chemical Composition of 309 Stainless Steel Pipe
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
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) |
Introducing the 309 Stainless Steel Pipe: Exceptional Durability and Heat Resistance Physical Properties of 309 Stainless Steel Pipe
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.