Stainless Steel 347 and 347H ERW Pipes

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Stainless Steel 347 and 347H ERW Pipes Manufacturer, Supplier and Exporter in Houston , USA

Liam Pipes and Tubes, Houston, USA, is an expert in high-grade stainless steel products designed for rigorous industrial use. Our Stainless Steel 347 and 347H ERW Pipes are specifically made with high requirements in oil and gas, chemical processing, construction, and others. Renowned for their excellent corrosion resistance, toughness, and stability at high temperatures, these pipes are produced using latest methods to guarantee efficient performance and longevity. At Liam, we are dedicated to providing efficient, reliable, and cost-effective piping solutions that surpass customer expectations and endure the toughest operating conditions.

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Stainless Steel 347 and 347H ERW Pipes are austenitic stainless steel alloys consisting of 17–19% chromium, 9–12% nickel, and columbium (niobium) in quantities 10–15 times the carbon content. These additives provide superior resistance to intergranular corrosion, particularly after exposure to elevated temperatures. They have high tensile strength, good ductility, and increased hardness, which makes them applicable for pressure-bearing and heat-intensive uses. With high weldability and oxidation resistance, these pipes retain structural integrity and shape stability, even with high-temperature production processes and aggressive chemical conditions.

Stainless Steel 347 and 347H ERW Pipes Specification

Specifications : ASTM A312 / ASME SA312

Dimensions : ASTM, ASME and API

Size : 8″ NB to 24″ NB

Wall Thickness : 0.5 to 150mm Thick

Schedules : SCH 5S, 10S,10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS

Length : Single Random, Double Random & Required Length

Form : Round, Square, Rectangular, Hydraulic Pipes

End : Plain end, Bevelled end

Type : Electric Resistance Welded

347 and 347H Stainless Steel ERW Pipes Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Cb	Ni	Fe
SS 347	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 – 20.00	10xC – 1.10	9.00 – 13.00	62.74 min
SS 347H	0.04 – 0.10	2.0 max	1.0 max	0.045 max	0.030 max	17.00 – 19.00	8xC – 1.10	9.0 -13.0	63.72 min

SS 347 and 347H ERW Pipes Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
7.9 g/cm3	1402 °C (2555 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	40 %

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 347 and 347H ERW Pipes from Liam Pipes and Tubes?

Choosing Stainless Steel 347 and 347H ERW Pipes from Liam Pipes and Tubes guarantees excellent corrosion resistance, high strength, and durability. Designed for diverse industrial applications, it delivers reliable performance in tough environments while maintaining competitive pricing for cost-effective solutions.

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Largest Stainless Steel 347 and 347H ERW Pipes Supplier in Houston , USA

Liam Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 347 and 347H ERW Pipes in Houston , USA, offers a comprehensive range of high-quality pipes and tubing suitable for various industrial applications. Our extensive inventory and commitment to exceptional service make us a trusted choice for regional products.

Equivalent Grades for SS 347 and 347H ERW Pipes

STANDARD	UNS	WERKSTOFF NR.	EN	JIS	GOST
SS 347	S34700	1.4550	X6CrNiNb18-10	SUS 347	08Ch18N12B
SS 347H	S34709	1.4961	X6CrNiNb18-12	SUS 347H	–

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Types of Stainless Steel 347 and 347H ERW Pipes

Are Custom Sizes Available for Stainless Steel 347 and 347H ERW Pipes?

We offer custom sizes for Stainless Steel 347 and 347H ERW Pipes to meet your specific needs. Our dedicated team at Liam Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@liampipes.us.

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347 and 347H ERW Pipes made of Stainless Steel are commonly applied in tropical and corrosive climates because of their excellent resistance to oxidation and intergranular corrosion. Typical uses are petrochemical facilities, chemical process equipment, heat exchangers, reactors, and piping systems. In the aviation industry, they find use in exhaust systems and engine parts subject to thermal stress. They also provide essential functions in power generation, boiler parts, and food processing systems, where scaling and contamination resistance is crucial. They are suitable for long-term exposure in hostile industrial environments due to their strength, reliability, and thermal resistance.