What are Stainless Steel 347H Pipes?

Hindco Steel And Alloys is a trusted manufacturer and supplier of premium-quality Stainless Steel 347H Pipes that meet global industrial specifications and high-performance demands. These pipes are fabricated using heat-resistant austenitic stainless steel alloy, specifically stabilized with columbium to enhance their resistance to intergranular corrosion, even after exposure to high temperatures. The material complies with the universal standard UNS S34709 and is manufactured under the stringent norms of ASTM A312 TP347H, ensuring mechanical reliability, dimensional accuracy, and outstanding strength at elevated temperatures.

SS347 Pipes Specification Chart
SS 347H Pipes Chemical Composition
SS 347H Pipes Mechanical Properties
Application Of Industries
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Stainless Steel 347H Pipes, Stainless Steel 347H Pipes Manufacturers, Stainless Steel 347H Pipes Suppliers, Stainless Steel 347H Pipes Stockists, Stainless Steel 347H Pipes Exporters

Our SS 347H Pipes are widely used in high-pressure and high-temperature services such as in heat exchangers, petrochemical plants, boilers, refineries, and power generation units. Due to the higher carbon content in 347H compared to 347, these pipes provide enhanced creep strength and superior performance under thermal stress conditions. We offer a variety of configurations including Stainless Steel 347H Seamless Pipes, Welded Pipes, ERW Pipes, and Fabricated Pipes, all designed to fit diverse operational needs across multiple industries.

Hindco Steel And Alloys ensures that all our products are manufactured under advanced processes and quality systems. Our ASTM A312 TP347H Pipes exhibit excellent forming and welding characteristics, which makes them suitable for various fabrication requirements. These pipes are not only corrosion-resistant in acidic environments but also perform exceptionally well in oxidizing atmospheres. They maintain their structural stability even under cyclic heating, making them the first choice for industries operating at elevated temperatures.

Stainless Steel 347H Pipes in India, Stainless Steel 347H Pipes Manufacturers in India, Stainless Steel 347H Pipes Suppliers in India, Stainless Steel 347H Pipes Stockists in India, Stainless Steel 347H Pipes Exporters in India

We supply UNS S34709 Pipes in different lengths, diameters, and wall thicknesses to accommodate both standard and custom project requirements. Our product range is available in both mill finish and polished finishes with end types like plain end, beveled end, and threaded end. With in-house quality testing, every pipe is delivered with full traceability, including MTC, third-party inspection reports, and compliance with global norms like ASME, ANSI, DIN, and EN standards.

Stainless Steel 347H Pipes in Mumbai, Stainless Steel 347H Pipes Manufacturers in Mumbai, Stainless Steel 347H Pipes Suppliers in Mumbai, Stainless Steel 347H Pipes Stockists in Mumbai, Stainless Steel 347H Pipes Exporters in Mumbai

Specifications Of Stainless Steel 347H Pipes

Specifications	ASTM A213, A312, A269, A358 / ASME SA213, SA312, SA269, SA358
Outside Diameter	6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Thickness Range	0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type	Seamless / ERW / Welded / Fabricated / CDW
Form	Round Tubes, Square Tubes, Rectangular Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes
Length	Single Random, Double Random & Required Length
End	Plain End, Beveled End, Treaded
Outside Finish	2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Tubes, Finish as per customer Requirements
Delivery Condition	Annealed and Pickled, Polished, Bright Annealed, Cold Drawn

Chemical Composition Of Stainless Steel 347H Pipes

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 347H	0.08 max	2 max	0.75 max	0.045 max	0.030 max	18 – 20	-	8 – 11	-

Mechanical Properties Of Stainless Steel 347H Pipes

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

Application Of Industries

Power Plants

Construction

Petrochemical

Aerospace

Refineries

Chemical

Oil & Gas

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