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 |
In environments demanding high heat and resistance, our chromium-nickel austenitic stainless steel pipes-309, 309S, and 309H-excel. These grades offer unparalleled resistance to oxidation, heat, and corrosion, thanks to their substantial chromium and nickel content. 309S boasts a lower carbon content than standard 309, ensuring reduced carbide precipitation and superior weldability. The 309H variant, with its higher carbon concentration, stands out for its exceptional creep resistance.
Stainless Steel Welded TubesCrafted from high-quality stainless steel strip, our tubular products are roll-formed and fusion-welded along the longitudinal seam. Daxun's welding process is distinguished by its omission of any filler metal, ensuring a seamless and robust final product.
309 Stainless Steel Tube Features
- Unmatched in providing excellent corrosion resistance
- Demonstrates superior resilience to marine atmospheres compared to Alloy 304
- Ideal for high-temperature applications due to outstanding oxidation resistance
- Exhibits high resistance to sulfite liquors
- Renowned as heat-resistant alloys
- Capable of withstanding destructive scaling temperatures up to approximately 2000°F
- Provides excellent scaling resistance for both continuous and intermittent service
Stainless Steel Drawn TubeOur stainless steel tubular products undergo a meticulous rolling and re-drawing process to achieve final size. This method is perfect for producing thick-walled, large-diameter tubes, which cannot be directly rolled to size, offering cost benefits over seamless tubes. Each drawn tube is meticulously bright-annealed.
Daxun Advantages
- Variety: We offer an extensive range of stainless steel pipes, from small to large diameters, including grades such as 304L, 316L, 317L, 321, 309, 347, 2205, and more.
- Flexibility: Our product range includes both seamless and welded steel pipes, tailored to meet your specific project requirements.
Quality - Standards: Our stainless steel pipes adhere to rigorous standards like ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175, ensuring top-notch reliability and performance.
- Custom Orders: Need unique-sized stainless steel pipes? We offer customizable options at competitive prices, with the convenience of online ordering.
Stainless Steel Seamless TubeOur seamless tubular products are drawn from hollow sections, created through piercing or hot extrusion processes. These tubes are ideal for applications requiring large diameter-to-wall thickness ratios and offer excellent external dimensional tolerances.
Quality, Delivery, Inspection
- We ensure quality with rigorous tests such as flattening, pitting resistance, mechanical, hardness, material positive identification, and expansion tests. These quality assurance tests guarantee the material meets required specifications.
- Throughout production, we meticulously measure the diameter, thickness, and surface of each product. Our standard delivery spans 7-15 days, extending to 20 days for special sizes.
Our delivery schedule adheres strictly to contractual agreements. - We welcome third-party inspections at our factory, ensuring transparency and trust.
- Providing free samples for customer testing as part of our commitment to quality.
- Supporting on-site and video inspections for a comprehensive evaluation of our manufacturing process.
Daxun Stainless Steel Pipe Manufacturing Capabilities
Discover unparalleled forming capabilities with Jiangsu Daxun Alloy Co., Ltd. Our advanced extrusion and cold working technologies are designed for the seamless manufacturing of tube and pipe products. Home to one of the world's largest pilger mills, we also offer unique hydroforming processes for crafting high-precision fittings.
Unleashing Daxun's Superior Pipe Processing Expertise
As a vertically integrated powerhouse, Jiangsu Daxun Alloy provides a comprehensive one-stop solution for all your needs. Whether it's an entire project or a specialized machining job, we excel in Straightening, Drilling, Honing, Trepanning, Cutting, Testing, Boring, Machining, Laser Welding, Polishing, Turning, and Specialized Services.
Bigger, Better Pipe Solutions by Daxun
With unrivaled vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun boasts the world's most extensive pipe extrusion capabilities. Our technology enables the production of industry-leading lengths and diameters.
Daxun is a key supplier to the power generation sector, offering ductwork, boiler tubes, main steam tubes, thermal reheat tubes, flue gas desulfurization units, and more-serving nuclear, coal-fired, renewable energy, and combined cycle applications.
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 Quality and Durability for High-Temperature Applications 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.