Stainless Steel 347 and 347H ERW Pipes

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Stainless Steel 347 and 347H ERW Pipes Manufacturer, Supplier and Exporter in Chennai, India

Vipul Pipes and Tubes is one of the leading suppliers and manufacturers of Stainless Steel 347 and 347H ERW (Electric Resistance Welded) Pipes in Chennai, India, providing dependable solutions for high-temperature and corrosive fluid processing. Grades 347 and 347H are niobium-stabilized austenitic stainless steels resistant to intergranular corrosion and oxidation at high temperatures. 347H, with increased carbon content, increases creep strength. Our ERW pipes feature equal wall thickness, high dimensional precision, and consistent behavior. Vipul Pipes and Tubes caters to principal industries such as power generation, oil & gas, petrochemical, and chemical processing, fulfilling domestic as well as global piping requirements.

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Stainless Steel 347/347H ERW pipes contain 17–20% chromium and 9–13% nickel, with niobium (columbium) added to stabilize. Grade 347H has 0.04–0.10% carbon for high-temperature strength. These pipes provide tensile strength of 515–750 MPa and yield strength of 205–275 MPa with high elongation and ductility. They are resistant to thermal stress-induced structural instability and oxidation up to 870°C. ERW process produces smooth, consistent welds with constant wall thickness, preparing the pipes for high-pressure and high-temperature use while providing economical and effective fabrication.

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 Vipul Pipes and Tubes?

Choosing Stainless Steel 347 and 347H ERW Pipes from Vipul 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 Chennai, India

Vipul Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 347 and 347H ERW Pipes in Chennai, India, 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 Vipul Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@vipulpipesandtubes.co.in.

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Stainless Steel 347 and 347H ERW Pipes have wide applications in power plants, boiler components, refineries, and chemical plants where heat and corrosion resistance are crucial. They can be applied in exhaust ducts, pressure vessels, and superheaters in situations with continuous heat cycles. In the oil & gas industry, they find application in steam lines, heat exchangers, and process piping. Their superior weldability and resistance to oxidation qualify them for fabricated structures that work in high-stress conditions. The pipes are also favored in pharmaceutical use and marine use for being durable, low in maintenance, and having a long lifespan.