Stainless Steel 347 and 347H EFW Pipes

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Stainless Steel 347 and 347H EFW Pipes Manufacturer, Supplier and Exporter in Cape Town, South Africa

Bosega Pipes and Tubes is a reputable manufacturer and supplier located in Cape Town, South Africa, specializing in top-notch Super Duplex Steel Tubing. Known for providing high-performance piping solutions, Bosega caters to a wide range of industries with products that are celebrated for their durability, corrosion resistance, and strength. With a strong focus on quality and customer satisfaction, Bosega Pipes and Tubes offers tailored Super Duplex Steel Tubing that complies with both international and local industry standards. Thanks to their advanced manufacturing techniques and strict quality control, they have become a go-to partner for critical applications in tough and demanding environments.

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Stainless Steel 347 and 347H EFW Pipe is a high quality chromium-nickel alloy for corrosion resistance, high thermal strength and stability. The composition contains approximately 18% chromium, 9% nickel, and columbium added for increased intergranular corrosion resistance. Technical features include 75,000 psi tensile strength and 30,000 psi yield strength, making it suitable for high pressure applications Advantages include good oxidation resistance, weldability, and durability, making it ideal for use in chemical processing, power generation and heat exchangers , ensures delayed operation in dangerous environments.

Stainless Steel 347 and 347H EFW Pipes Specification

Specification	ASTM A358 / ASME SA358
Specification	A / SA358 CLASS 1, A / SA358 CLASS 2, A / SA358 CLASS 3, A / SA358 CLASS 4, A / SA358 CLASS 5
Grades	304, 304L, 304H, 309S, 310S, 316, 316L, 316H, 317L, 321, 321H, 347, 347H, 904L ETC.
Type	EFW, ELECTRIC FUSION WELDED
Outer Diameter Size	Electric Fusion Welded / ERW- 8″ NB To 110″ NB (Nominal Bore Size)
Wall Thickness	Schedule 10 To Schedule 160 (3 mm to 100 mm Thickness)
Length	01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size.
Ends	Plain Ends / Beveled Ends
Delivery Conditions	As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered
Coating	Electropolish, Mechanical Polish, Satin Finish, Passivated
Dimension	All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME
Value Added Services	Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment
Packaging	Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
Material Test Certificate	Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC

Equivalent Grades for Stainless Steel 347 and 347H EFW 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	–

347 and 347H Stainless Steel EFW 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 EFW Pipes Mechanical Properties

Tensile Strength	Yield Strength (0.2%Offset)	Elongation	Hardness
			Rockwell B (HR B) max	Brinell (HB) max
Psi – 75000, MPa – 515	Psi – 30000, MPa – 205	35 %	92	201

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 EFW pipes from Bosega Pipes and Tubes?

Super Duplex Steel Tubing is mainly made up of about 25% chromium, 7% nickel, 4% molybdenum, along with trace amounts of nitrogen and manganese, resulting in a well-balanced austenitic-ferritic microstructure. This dual-phase design gives it remarkable strength and outstanding resistance to stress corrosion cracking, pitting, and crevice corrosion. Its mechanical properties boast a high tensile strength of around 750 MPa and a yield strength of about 550 MPa, with elongation values typically exceeding 25%. The tubing also shows good weldability and toughness, even in sub-zero temperatures, making it perfect for challenging operational settings.

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Largest Stainless Steel 347 and 347H EFW pipes Supplier in Cape Town, South Africa

Bosega Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 347 and 347H EFW Pipes in Cape Town, South Africa, 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 EFW Pipe Sizes

NPS Designator	Outside Diameter		Nominal Wall Thickness
	in.	mm	Schedule 5SA		Schedule 10SA		Schedule 40SA		Schedule 80SA
	in.	mm	in.	mm	in.	mm	in.	mm	in.	mm
8	8.625	219.08	0.109	2.77	0.148	3.76	0.322	8.18	0.500	12.70
10	10.750	273.05	0.134	3.40	0.165	4.19	0.365	9.27	0.500B	12.70B
12	12.750	323.85	0.156	3.96	0.180	4.57	0.375B	9.52B	0.500B	12.70B
14	14.000	355.60	0.156	3.96	0.188B	4.78B	…	…	…	…
16	16.000	406.40	0.165	4.19	0.188B	4.78B	…	…	…	…
18	18.000	457.20	0.165	4.19	0.188B	4.78B	…	…	…	…
20	20.000	508.00	0.188	4.78	0.188B	4.78B	…	…	…	…
22	22.000	558.80	0.188	4.78	0.218B	5.54B	…	…	…	…
24	24.000	609.60	0.218	5.54	0.250	6.35	…	…	…	…
30	30.000	762.00	0.250	6.35	0.312	7.92	…	…	…	…

Types of Stainless Steel 347 and 347H EFW Pipes

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

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

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Bosega Pipes and Tubes’ Super Duplex Steel Tubing is widely utilized across various high-demand sectors due to its exceptional corrosion resistance and mechanical strength. It’s commonly found in offshore oil and gas platforms, desalination plants, chemical processing industries, and marine environments where resistance to chloride-induced corrosion is crucial. Power generation plants, structural applications, heat exchangers, and pressure vessels also reap the benefits of its durability and performance under extreme conditions. The tubing’s versatility, long service life, and low maintenance needs make it a smart choice for modern infrastructure and critical engineering systems.