Stainless Steel 309H Pipes

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Stainless Steel 309H Pipes Manufacturer, Supplier and Exporter in Houston , USA

Based in Houston, Texas, Liam Pipes and Tubes is a reputable manufacturer and supplier of stainless steel 309H pipes. SS 309H, which is well-known for having a high carbon content, is specifically made for elevated temperature service and provides improved high-temperature strength. Our ASTM-compliant 309H pipes are extensively utilised in the petrochemical, power generation, and thermal processing sectors. Our products are designed to last and function well in the most demanding conditions thanks to their exceptional oxidation resistance, structural integrity, and weldability. Liam Pipes and Tubes is pleased to offer premium stainless steel piping solutions to both domestic and foreign customers.

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In order to improve creep resistance, stainless steel 309H pipes have a higher carbon content (0.04–0.10%) than regular 309 and are made up of 22–24% chromium and 12–15% nickel. Manganese, silicon, and trace amounts of phosphorus and sulphur are other elements. These pipes have a yield strength of about 205 MPa and a tensile strength of about 550–750 MPa. Excellent ductility, mechanical stability, and resistance to oxidation up to 1093°C (2000°F) are all provided by SS 309H. Additionally, it provides consistent formability and weldability, which makes it appropriate for industrial applications involving high heat and pressure.

Stainless Steel 309H Pipes Specification

Specifications	ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790
Dimensions	ASTM, ASME and API
Schedule	SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Wall Thickness	Sch 5s, 10s, 40s, 80s, 160, XXS
Size – Seamless 309H Pipes	1/8″NB TO 30″NB IN
ERW 309H Pipes	1/2″ NB – 24″ NB
EFW 309 Pipes	6″ NB – 100″ NB
Form	Round, Square, Rectangular, Oval, Hydraulic Etc
Types	Seamless, ERW, Welded, Fabricated, LSAW Pipes
End	Plain End, Beveled End, Treaded
Length	Single Random, Double Random & Cut Length.

Stainless Steel 309H Pipes Chemical Composition

Grade		C	Mn	Si	P	S	Cr	Ni	Fe
309H	min.	0.04	–	–	–	–	22.0	12.0	58.0 63.0
309H	max.	0.10	2.0	0.75	0.045	0.03	24.0	15.0	58.0 63.0

SS 309H Pipes Mechanical Properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
309H	515	205	40	95	217

If You Are Looking To Buy High Quality

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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Why Choose Stainless Steel 309H Pipes from Liam Pipes and Tubes?

Choosing Stainless Steel 309H Pipes from Liam Pipes and Tubes offers superior thermal stability, corrosion resistance and excellent weldability. The company’s expertise assures accuracy and quality control. They offer on-time delivery, competitive pricing and exceptional customer support, making them a trusted vendor for engineering needs.

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Largest Stainless Steel 309H Pipes Supplier in Houston , USA

Liam Pipes and Tubes, one of the largest suppliers of Stainless Steel 309H pipes in Houston , USA, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.

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Types of Stainless Steel 309H Pipes

Are Custom Sizes Available for Stainless Steel 309H Pipes?

Yes, we offer custom sizes for Stainless Steel 309H pipes to meet your specific requirements. Our team at Liam Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@liampipes.us.

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For high-temperature applications where improved creep strength and oxidation resistance are essential, stainless steel 309H pipes are perfect. Boilers, heat exchangers, superheater tubes, and furnace parts are frequently made with them. 309H is used in high-temperature fluid transport systems, radiant tubes, and reformers in the petrochemical sector. It is also appropriate for metallurgy, power generation, and chemical processing due to its resistance to corrosive environments and thermal cycling. Systems that need long-term durability and structural integrity under harsh service conditions are more likely to use SS 309H pipes because of their strong mechanical performance at high temperatures.