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 |
Renowned for their exceptional performance in high-temperature environments, the chromium-nickel austenitic stainless steel pipes 309, 309S, and 309H by Jiangsu Daxun Alloy Co., Ltd. stand out due to their superior oxidation, heat, and corrosion resistance. These attributes stem from their elevated chromium and nickel content. Additionally, these pipes exhibit remarkable strength in both room and elevated temperatures. The key distinction between 309 and 309S grades lies in the carbon content; 309S has reduced carbon, minimizing carbide precipitation and enhancing weldability. Conversely, 309H boasts a higher carbon concentration than 309, granting it greater creep resistance.
Stainless Steel Welded TubesOur stainless steel tubular products, crafted from stainless steel strips, are roll-formed and fusion-welded along the longitudinal seam. Notably, the advanced welding process utilized by Daxun omits any filler metal, ensuring a robust and seamless finish.
Features of 309 Stainless Steel Tubes
- Delivers outstanding corrosion resistance
- Exhibits superior resilience in marine atmospheres compared to Alloy 304
- Ideal for high-temperature use, leveraging their impressive oxidation resistance
- Boasts high resistance to sulfite liquors
- Categorized as heat-resistant alloys
- Can withstand destructive scaling temperatures of approximately 2000°FoF
- Maintains excellent scaling resistance for both continuous and intermittent service
Stainless Steel Drawn TubeOur stainless steel tubular products undergo rolling and re-drawing to achieve their final size. This process is ideal for manufacturing thick-walled, large-diameter tubes that cannot be directly rolled to size, offering cost efficiencies over stainless steel seamless tubes. All drawn tubes are bright annealed for a polished finish.
Daxun Advantages
- Variety: Our extensive range includes stainless steel pipes of various sizes and grades, from small to large diameters, such as 304L, 316L, 317L, 321, 309, 347, 2205, and more.
- Flexibility: Whether you require seamless or welded steel pipes, our products are tailored to meet your specific project needs.
Quality - Standards: Adhering to stringent standards like ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, our stainless steel pipes ensure unmatched reliability and performance.
- Custom Orders: Seeking specific sizes? We offer a wide range of custom stainless steel pipe options at competitive prices with convenient online ordering.
Stainless Steel Seamless TubeOur seamless tubes, drawn from the hollow section made via piercing or hot extrusion processes, excel in scenarios requiring large diameter-to-wall thickness ratios and offer exceptional external dimensional tolerances.
Quality, Delivery, Inspection
- Daxun conducts rigorous quality assurance tests, including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests, ensuring the material's suitability for its intended application.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface of each product. Our standard delivery time ranges from 7 to 15 days, with an extension to 20 days for special sizes.
Our delivery schedule adheres strictly to the contractual agreement. - We support customer third-party agencies for factory inspections.
- We offer free samples for customer testing.
- We facilitate on-site or video factory inspections.
Daxun Stainless Steel Pipe Manufacturing Capabilities
Our forming capabilities are second to none, featuring advanced extrusion and cold working technologies dedicated to the production of premium tube and pipe products. We boast one of the world's largest pilger mills and employ unique hydroforming processes for the precision manufacturing of fittings.
Daxun's Unrivaled Pipe Processing Capabilities
As a vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. stands as your ultimate one-stop solution, handling everything from comprehensive projects to specialized machining tasks. Our extensive services include Straightening, Drilling, Honing, Trepanning, Cutting, Testing, Boring, Machining, Laser Welding, Polishing, Turning, and Specialized Services.
Bigger, Better Pipe Solutions by Daxun
With an impressive array of vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun offers the world's most comprehensive pipe extrusion capabilities. This allows us to produce pipes of the longest lengths and largest diameters available in the industry, setting a new standard for excellence.
Jiangsu Daxun Alloy Co., Ltd. caters to the power generation market with a wide array of high-quality products including ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our offerings support nuclear, coal-fired, renewable energy, and combined cycle applications, ensuring reliable and efficient performance.
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) |
309 Stainless Steel Pipe: Unmatched Durability and Heat Resistance PHYSICAL PROPERTIES
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.