Stainless Steel 347 and 347H Welded Pipes

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Stainless Steel 347 and 347H Welded Pipes Manufacturer, Supplier and Exporter in Addis Ababa, Ethiopia

These pipes are crafted from austenitic chromium-nickel stainless steel, stabilized with columbium (niobium) to prevent intergranular corrosion. Typically, their composition features 17–19% chromium, 9–13% nickel, and 0.08–0.10% carbon, with 347H having a higher carbon content for enhanced high-temperature strength. They boast impressive tensile strength (around 515 MPa), good yield strength (approximately 205 MPa), and outstanding creep and stress rupture properties. Even under prolonged exposure to high temperatures, they maintain mechanical stability and oxidation resistance.

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The Stainless Steel 347 and 347H Welded Pipes are made from titanium-stabilized austenitic stainless steel, which includes chromium, nickel, and titanium. The 347H variant, with its higher carbon content, offers improved high-temperature strength and creep resistance. Both grades excel in resisting intergranular corrosion, pitting, and oxidation in harsh environments. On the mechanical side, these pipes boast high tensile and yield strength, toughness, and fatigue resistance, all while maintaining good weldability and machinability. Their welded design ensures uniform wall thickness, dimensional stability, and reliable performance even under high-pressure and high-temperature conditions.

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 Bereket 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 Addis Ababa, Ethiopia

Bereket Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 347 and 347H Welded Pipes in Addis Ababa, Ethiopia, 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 Bereket Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@bereketpipes.com.

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Stainless Steel 347 and 347H Welded Pipes are commonly used in settings that require exceptional heat resistance and corrosion protection. They’re perfect for the chemical and petrochemical sectors, oil refineries, exhaust systems, furnace components, boiler tubes, and heat exchangers. Their excellent weldability and resistance to carbide precipitation make them ideal for continuous use in high-heat and cyclic conditions. These welded pipes promise reliable performance, a long service life, and minimized maintenance in demanding industrial and thermal processing environments.