Stainless Steel 309 Seamless Tubes

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Stainless Steel 309 Seamless Tubes Manufacturer, Supplier and Exporter in Thailand

Based in Bangkok, Thailand, Thaida is a top producer and supplier of 309 stainless steel seamless tubes. Thaida is well-known for its dedication to quality, innovation, and client satisfaction. It provides premium seamless tubes that are made to international standards. The company offers long-lasting, corrosion-resistant SS 309 tubes that are perfect for high-temperature and industrial applications thanks to its state-of-the-art manufacturing facilities and knowledgeable technical staff. Thaida guarantees precisely engineered products, prompt delivery, and dependable service throughout Thailand and international markets while catering to a variety of industries, including petrochemical, power generation, and construction.

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Nickel (12–15%), chromium (22–24%), carbon (≤0.20%), manganese (≤2%), silicon (≤1%), and trace elements like phosphorus and sulfur make up the majority of stainless steel 309 seamless tubes. At high temperatures, this composition provides exceptional resistance to oxidation and corrosion. Mechanically, SS 309 has an elongation of roughly 40%, a yield strength of 310 MPa, and a tensile strength of about 620 MPa. Its average Brinell hardness of 150 HB guarantees toughness, durability, and excellent performance in corrosive and heat-intensive settings like heat exchangers, boilers, and furnaces.

Stainless Steel 309 Seamless Tubes Specifications

Specification	ASTM A-213 & Its equivalent ASME, DIN & EN Standard.
ASTM A213 Stainless Steel 309 Tubes Grades	304, 304L, 304H,304N, 304LN,309, 309S, 310S, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H, 410,446
Type	Seamless Ferritic and Austenitic Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A213 Stainless Steel Tubes Outer Diameter Size	1/4” OD, NB to 3” OD, NB sizes
Thickness	1mm to 12mm, SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S as per ANSI B36.19/36.10
ASTM A213 Stainless Steel 309 Tubes Length	Up to 6 meters, custom cut lengths
Ends	No.1 Pickled Finish, No.4 finish, BA Finish, Electropolished Seamless Tubes
ASTM A213 Stainless Steel Tubes Delivery Conditions	As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw
Coating	Electropolish, Mechanical Polish, Satin Finish, Passivated
Other Testing	Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiographic Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc
Dimension	All Pipes & Tube Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME
Value Added Services	Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment
Packaging	Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
Material Test Certificate	Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC
Delivery	By Road – Truck / Train, By Sea – Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 30 Feet Container / 35 Feet Container / High Cube Container / Open Top Container, By Air – Freighter Civil Passenger and Cargo Planes

Stainless Steel 309 Seamless Tubes Equivalent

STANDARD	UNS	WERKSTOFF NR.	JIS	AFNOR	BS	GOST	EN
SA 213 TP 309 Tube	S30400	1.4301	SUS 304	Z7CN18‐09	304S31	08Х18Н10	X5CrNi18-10

Stainless Steel 309 Seamless Tubes Chemical Composition

Element	Content (%)
Iron, Fe	60
Chromium, Cr	23
Nickel, Ni	14
Manganese, Mn	2
Silicon, Si	1
Carbon, C	0.20
Phosphorous, P	0.045
Sulfur, S	0.030

Stainless Steel 309 Seamless Tubes Mechanical Properties

Properties	Metric	Imperial
Tensile strength	620 MPa	89900 psi
Yield strength (@ strain 0.200%)	310 MPa	45000 psi
Izod impact	120 – 165 J	88.5 – 122 ft-lb
Shear modulus (typical for steel)	77 GPa	11200 ksi
Elastic modulus	200 GPa	29008 ksi
Poisson’s ratio	0.27-0.30	0.27-0.30
Elongation at break (in 50 mm)	45%	45%
Hardness, Brinell	147	147
Hardness, Rockwell B	85	85
Hardness, Vickers (converted from Rockwell B hardness)	169	169

If You Are Looking To Buy High Quality Pipes and Tubes

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

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Stainless Steel 309 Seamless Tubes Physical Properties

Properties	Metric	Imperial
Density	8 g/cm3	0.289 lb/in³
Melting point	1455°C	2650°F

Why Choose Stainless Steel 309 Seamless Tubes from Thaida?

Choosing Stainless Steel 309 Seamless Tubes from Thaida in Thailand ensures superior quality, durability, and performance. These pipes provide outstanding corrosion resistance and strength, making them ideal for demanding industrial applications. With a strong commitment to exceptional service and timely delivery, Thaida guarantees complete customer satisfaction. Backed by expertise in stainless steel products, we deliver high-grade, customized solutions designed to meet your specific requirements with precision and reliability.

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Largest Stainless Steel 309 Seamless Tubes Supplier in Thailand

A leading supplier of Stainless Steel 309 Seamless Tubes, Thaida offers a wide range of high-quality pipes and tubes suitable for various industrial applications. With an extensive inventory and a strong commitment to dependable service, it has earned a reputation as a trusted provider of stainless steel solutions throughout Thailand.

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Types of Stainless Steel 309 Seamless Tubes

Are Custom Sizes Available for Stainless Steel 309 Seamless Tubes?

Yes, Thaida in Thailand provides custom sizes for Stainless Steel 309 Seamless Tubes to perfectly match your specific requirements. Our dedicated team is committed to delivering tailored piping and tubing solutions that meet your industrial needs. For more information, reach out to us at [email protected].

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Stainless Steel 309 Seamless Tubes Uses

Applications needing corrosion resistance and strength at high temperatures frequently use stainless steel 309 seamless tubes. Petrochemical, power generation, chemical processing, and furnace manufacturing are examples of common industries. These tubes are perfect for applications involving continuous exposure to high temperatures, such as heat exchangers, boilers, superheaters, kilns, and exhaust systems. Because of its exceptional resistance to oxidation, SS 309 can be used in refinery piping, thermal processing equipment, and aerospace components. Additionally, food processing facilities and automobile exhaust manifolds use it. They are a popular option for demanding industrial settings because of their resilience to scaling, weldability, and durability.