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309S Stainless Steel Pipe ASTM A269 Corrosion Resistant Od 42.4mm-273.0mm for LNG Equipment 309 Stainless Steel Tube

Name: 309S Stainless Steel Pipe ASTM A269 Corrosion Resistant Od 42.4mm-273.0mm for LNG Equipment 309 Stainless Steel Tube
Brand: Jiangsu Daxun Alloy Co., Ltd.
SKU: odQtjgTlhcfK
Price: 3.00 USD
Availability: InStock

US$3.00 - 4.00 100 kg (MOQ)

Port:

Shanghai, China

Production Capacity:

10000ton

Payment Terms:

L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Jiangsu Daxun Alloy Co., Ltd.

Jiangsu, China

Last Login Date:

Jul 29, 2025

Business Type:

Manufacturer/Factory, Trading Company

Main Products:

Stainless Steel Sheet, Stainless Steel Tube, Stainless Steel Rod, Stainless Steel Coil, Titanium Sheet, Titanium Tube, Titanium Rod

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Product Description

Company Info

Basic Info.

Model NO.

309 Stainless Steel Tube

Type

Stainless Steel Pipes

Standard

ASTM, AISI, GB, JIS, EN

Grade

Ss09 S30908 309S

Certification

ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS

Shape

Round

Technique

Hot Rolled

Surface Treatment

Pickling

Thickness

0.3mm-100mm

Length

2000mm-9000mm

Surface

Pickling, Polishing, Ba

Delivery State

Solution Annealing

Trademark

Daxun

Transport Package

Wooden Box + Strapping

Specification

OD 6.35mm-OD 1219mm

Origin

China

Product Description

Product Parameters

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

Detailed Photos

Commonly used for high temperature environments, the chromium-nickel austenitic stainless steel pipes 309, 309S, and 309H are renowned for their exceptional resistance to oxidation, heat, and corrosion due to their high chromium and nickel content. These stainless steel pipes exhibit remarkable strength at both room and elevated temperatures. The primary distinction between 309 and 309S stainless steel lies in the carbon content, with 309S having a lower carbon content, which mitigates carbide precipitation and enhances weldability. Furthermore, 309H stands out due to its higher carbon concentration compared to 309, providing superior resistance to creep.

Stainless Steel Welded Tubes

Crafted from stainless steel strip, our stainless steel tubular products undergo roll-forming and fusion-welding along the longitudinal seam. The advanced welding process employed by Daxun ensures no filler metal is used, maintaining the integrity and purity of the weld.

309 Stainless Steel Tube Features

Offers excellent corrosion resistance
More resistant to marine atmospheres compared to Alloy 304
Frequently utilized at higher temperatures to exploit their oxidation resistance
Exhibits high resistance to sulfite liquors
Generally regarded as heat-resistant alloys
Destructive scaling temperature reaches approximately 2000^oF
Provides good scaling resistance for both continuous and intermittent service

Stainless Steel Drawn Tube

Stainless steel tubular products are rolled and subsequently re-drawn to achieve the final size. This rolling and drawing process is ideal for creating thick-walled, large-diameter tubes that can't be directly rolled to size, while still offering significant cost savings over seamless tubes. All drawn tubes are bright annealed to ensure premium quality.

Daxun Advantages

Variety: From small to large diameter pipes, we offer an extensive 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 products are designed 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 stainless steel pipes of special sizes? We offer a variety of custom options at competitive prices and convenient online ordering.

Stainless Steel Seamless Tube

Our stainless steel tubular products are drawn from the hollow section of the tube, produced via piercing or hot extrusion processes. Stainless steel seamless tubes are optimal for large diameter-to-wall-thickness ratios and maintain excellent external dimensional tolerances.

Quality, Delivery, Inspection

At Daxun, we perform an array of quality assurance tests, including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These tests ensure the material's suitability for the required application.
Throughout production, we meticulously measure the diameter, thickness, and surface of each product. Our standard delivery time is 7-15 days, though special size products may extend the delivery period to 20 days.
We strictly adhere to delivery timelines as per the contract.
We support the inspection by third-party agencies at our factory.
We provide free samples to customers for testing.
We support on-site or video factory inspections.

Daxun Stainless Steel Pipe Manufacturing Capabilities

Our forming capabilities are second to none, incorporating cutting-edge extrusion and cold working technologies for the precision manufacturing of tube and pipe products. Boasting one of the world's largest pilger mills and an exceptional hydroforming process, we deliver unmatched quality in fittings production.

The Leading Edge in Pipe Processing - Daxun's Expertise

As a vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. offers a seamless one-stop solution for all your project needs. Whether managing an entire project or focusing on specific machining tasks, we provide superior services in straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and other specialized services.

Unmatched Excellence in Pipe Solutions

Equipped with vertical and horizontal presses ranging from 12,000 tons to an impressive 35,000 tons, Daxun stands out with the most comprehensive pipe extrusion capabilities globally. This enables us to produce the industry's longest-length and largest-diameter pipes with unparalleled precision.

Jiangsu Daxun Alloy Co., Ltd. caters to the power generation market by supplying a diverse range of critical components. These include ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units, tailored for nuclear, coal-fired, renewable energy, and combined cycle applications.

Packaging & Shipping

Company Profile

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 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

Certifications

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

Main Products: Stainless Steel Sheet, Stainless Steel Tube, Stainless Steel Rod, Stainless Steel Coil, Titanium Sheet, Titanium Tube, Titanium Rod

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.

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309S Stainless Steel Pipe ASTM A269 Corrosion Resistant Od 42.4mm-273.0mm for LNG Equipment 309 Stainless Steel Tube

Product Description

Company Info

Basic Info.

Product Description

309 Stainless Steel Tube Features

Daxun Advantages

Quality, Delivery, Inspection

Daxun Stainless Steel Pipe Manufacturing Capabilities

The Leading Edge in Pipe Processing - Daxun's Expertise

Unmatched Excellence in Pipe Solutions

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