Stainless Steel 347 and 347H Welded Pipes

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Stainless Steel 347 and 347H Welded Pipes Manufacturer, Supplier and Exporter in Istanbul, Turkey

Irfan Pipes and Tubes, based in Istanbul, Turkey, has earned a solid reputation as a reliable manufacturer and supplier of **Stainless Steel 347 and 347H Welded Pipes**. They specialize in providing top-notch piping solutions tailored for critical industrial applications. Thanks to their advanced manufacturing processes and strict quality control measures, the company produces welded pipes that boast impressive corrosion resistance, high-temperature strength, and long-lasting durability. These Stainless Steel 347 and 347H Welded Pipes are essential in industries that demand reliability in tough chemical and thermal environments. Irfan Pipes and Tubes is committed to timely deliveries and ensuring customer satisfaction, making them a trusted partner for sectors like chemical, petrochemical, power generation, and aerospace.

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Stainless Steel 347 and 347H Welded Pipes are austenitic stainless steels that contain around 17–19% chromium, 9–13% nickel, and are stabilized with niobium. The 347H variant has a higher carbon content, which enhances its strength at elevated temperatures. These alloys are known for their exceptional resistance to intergranular corrosion and oxidation, even when exposed to high temperatures. On the mechanical side, they offer high tensile strength, good toughness, and stability under thermal stress. Their austenitic structure provides excellent ductility and formability, while niobium stabilization improves creep resistance and weldability, making these welded pipes perfect for extreme industrial settings.

Stainless Steel 347 and 347H Welded Pipes Welded Pipe Specification

Specifications : ASTM A312 / ASME SA312

Outside Diameter : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size available Ex-stock

Thickness : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Size : 1/2″ NB – 24″ NB

Type : Welded

Form: Round Pipes, Square Pipes, Rectangular Pipes.

Length : Single Random, Double Random & Required Length

End : Plain End, Beveled End, Treaded

Equivalent Grades for Stainless Steel 347 and 347H Welded Pipes

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

Stainless Steel 347 and 347H Welded 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 Welded Pipes Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000, MPa – 515	Psi – 30000, MPa – 205	35 %

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 347 and 347H Stainless Steel Welded Pipes from Irfan Pipes and Tubes?

Choosing Stainless Steel 347 and 347H Welded Pipes 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 347 and 347H Stainless Steel Welded Pipes Supplier in Istanbul, Turkey

Irfan Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 347 and 347H Welded Pipes in Istanbul, Turkey, 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.

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347 and 347H Stainless Steel Welded Pipe Sizes

NB Sizes	Sch 5	Sch 10	Sch 40	Sch 80	Sch 160
1/8″	✓	✓	✓	✓
1/4″	✓	✓	✓	✓
3/8″	✓	✓	✓	✓
1/2″	✓	✓	✓	✓	✓
3/4″	✓	✓	✓	✓	✓
1″	✓	✓	✓	✓	✓
1 1/4″	✓	✓	✓	✓	✓
1 1/2″	✓	✓	✓	✓	✓
2″	✓	✓	✓	✓	✓
2 1/2″	✓	✓	✓	✓	✓
3″	✓	✓	✓	✓	✓
4″	✓	✓	✓	✓	✓
5″	✓	✓	✓	✓
6″	✓	✓	✓	✓

Types of 347 and 347H Stainless Steel Welded Pipes

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

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

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In various industries that require high-temperature strength, corrosion resistance, and durability, Stainless Steel 347 and 347H Welded Pipes are indispensable. In the power generation sector, they are commonly found in boilers, superheaters, and heat exchangers. Chemical and petrochemical facilities utilize them for process piping, reactors, and equipment that come into contact with corrosive substances at high temperatures. The aerospace and marine industries depend on their strength and thermal stability for critical components. Additionally, they are used in furnace parts, turbine components, and industrial equipment that face intense heat.