Stainless Steel 347 and 347H EFW Pipes

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Stainless Steel 347 and 347H EFW Pipes Manufacturer, Supplier and Exporter in Kuala lumpur, Malaysia

Maria Pipes and Tubes, Kuala Lumpur, Malaysia, is a renowned manufacturer and supplier of **Stainless Steel 347 and 347H EFW Pipes** (Electric Fusion Welded Pipes). We are specialists in manufacturing high-quality EFW pipes that provide higher resistance to heat, pressure, and corrosion in harsh industrial conditions. Manufactured with state-of-the-art electric fusion welding processes and high-quality materials, our 347 and 347H EFW pipes provide strength, dimension tolerances, and durability. Our pipes are of international quality and are utilised across power plants, refineries, and petrochemical sectors. At Maria Pipes and Tubes, we strive to provide durable piping solutions for mission-critical applications.

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**Stainless Steel 347 and 347H EFW Pipes** are fabricated from columbium (niobium)-stabilized austenitic stainless steel with high resistance against intergranular corrosion. They consist of 17–20% chromium and 9–13% nickel. Grade 347H has a greater concentration of carbon compared to 347, which increases high-temperature strength and resistance to creep. These pipes have tensile strength ranging approximately around 485 MPa, yield strength of 170 MPa, and elongation of approximately 35%. The electric fusion welding process provides for consistent weld quality and strength, which makes them suitable for high-pressure and high-temperature service conditions.

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 Maria Pipes and Tubes?

Choosing Stainless Steel 347 and 347H EFW Pipes from Maria 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 EFW pipes Supplier in Kuala lumpur, Malaysia

Maria Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 347 and 347H EFW Pipes in Kuala lumpur, Malaysia, 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 Maria Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@mariapipes.com.

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**Stainless Steel 347 and 347H EFW Pipes** find extensive applications in industries that seek consistent performance under harsh conditions. Some of the common applications include heat exchangers, boiler tubes, superheaters, pressure vessels, and piping systems in chemical processing plants, oil and gas refineries, and power generation plants. The stabilized form of these grades avoids carbide precipitation on welding, and they have remarkable corrosion resistance. Grade 347H is particularly designed for high-temperature and thermal cycling environments. These EFW pipes are long-lasting, easy to fabricate, and require less maintenance and hence are a reliable option for high-stakes infrastructure developments.