Stainless Steel 347 and 347H Seamless Pipes

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

Maria Pipes and Tubes, based in Kuala Lumpur, Malaysia, stands out as a top manufacturer and supplier of stainless steel products. Their Stainless Steel 347 and 347H Seamless Pipes are celebrated for their remarkable resistance to intergranular corrosion and their ability to withstand high temperatures. Crafted with precision through seamless techniques, these pipes deliver dependable performance even in the toughest industrial settings. Maria Pipes and Tubes is committed to ensuring that their products adhere to international quality standards, catering to industries like petrochemical, power generation, and aerospace, where durability and resistance to thermal stress are essential.

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Stainless Steel 347 and 347H Seamless Pipes have a balance of chromium (17-19%), nickel (9-12%) and niobium (10 times the amount of carbon) for increased corrosion resistance Their mechanical properties include good tensile strength (up to 750 MPa), yield strength (up to 205 MPa), It also includes high ductility. These pipelines are particularly useful for high temperature applications, providing oxidation resistance and excellent stability. They are ideal for chemical systems, oil and gas and electrical industries, ensuring long service life and reducing maintenance costs due to their durable nature.

Stainless Steel 347 and 347H Seamless Pipes Specification

Range : 6NB to 1200NB

Outer Diameter : 1/8″ NPS to 12″ NPS

Thickness : 0.6 mm to 12.7 mm

Schedules : SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS.

Length : Single Random, Double Random & Cut Length

Specifications : ASTM A312 / ASTM SA312

Types : Round, Square, Rectangle, Hydraulic, Honed Tubes

End : Plain End, Beveled End

Equivalent Grades for Stainless Steel 347 and 347H Seamless Pipes

STANDARD	UNS	WERKSTOFF NR.
SS 347	S34700	1.4550
SS 347H	S34709	1.4961

347 and 347H Stainless Steel Seamless Pipes Chemical Composition

SS	347	347H
Ni	09 – 13	09 – 13
N	–	–
Cr	17 – 20	17 – 19
C	0.08 max	0.04 – 0.08
Si	1 max	0.75 max
Mn	2 max	2 max
P	0.045 max	0.045 max
S	0.030 max	0.03 max
OTHER	Nb=10(C+N) – 1.0	8xC min – 1.00 max

SS 347 and 347H Seamless Pipes Mechanical Properties

Grade	347 / 347H
Tensile Strength (MPa) min	515
Yield Strength 0.2% Proof (MPa) min	205
Elongation (% in 50mm) min	40
Hardness
Rockwell B (HR B) max	92
Brinell (HB) max	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 347and 347H Stainless Steel Seamless Pipes from Maria Pipes and Tubes?

Stainless Steel 347 and 347H Seamless Pipes are mainly made up of chromium (17-19%), nickel (9-13%), and include columbium (niobium) to stabilize the alloy against carbide precipitation. The 347H grade features a higher carbon content (0.04-0.10%) compared to 347, which enhances its strength at elevated temperatures. Both grades boast impressive mechanical properties, with tensile strength ranging from 520-620 MPa and good toughness, making them ideal for continuous use in high-temperature applications up to 1100°C.

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Largest 347and 347H Stainless Steel Seamless Pipes Supplier in Kuala lumpur, Malaysia

Maria Pipes and Tubes, one of the largest suppliers of Stainless Steel 347 and 347H Seamless Pipes in Kuala lumpur, Malaysia, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.

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Grade specifications of SS 347 and 347HSeamless Pipes

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
		BS	En	No	Name
347	S34700	347s31	58G	1.4550	X6CrNiNb18-10	2338	SUS 347

Types of 347 and 347H Stainless Steel Seamless Pipes

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

Yes, we offer custom sizes for Stainless Steel 347and 347H Seamless Pipes to meet your specific requirements. Our team at Maria Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@mariapipes.com.

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These Stainless Steel 347 and 347H Seamless Pipes find extensive application in high-temperature settings like boilers, heat exchangers, furnace components, and chemical processing equipment. Their outstanding resistance to intergranular corrosion and scaling makes them perfect for power plants, petrochemical refineries, and aerospace uses. The seamless design of these pipes guarantees strength and leak-free operation under thermal cycling and mechanical stress, ensuring long-lasting reliability in critical industrial systems.