Stainless Steel 321 and 321H ERW Pipes

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Stainless Steel 321 and 321H ERW Pipes Manufacturer, Supplier and Exporter in Muscat, OMAN

Stainless Steel 321 and 321H ERW Pipes are popular choices for applications that demand outstanding resistance to corrosion and stability in high-temperature settings. These pipes are crafted using electric resistance welding technology, which guarantees consistent weld quality, smooth internal surfaces, and precise dimensional tolerances. Renowned for their durability and dependable performance, SS 321 and 321H ERW pipes meet international standards and are well-suited for challenging industrial environments. Their ability to handle thermal cycling makes them a go-to option for high-temperature and pressure-driven piping systems.

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Stainless Steel 321 and 321H are titanium-stabilized austenitic stainless steels that include chromium and nickel. The addition of titanium helps prevent carbide precipitation during welding and exposure to high temperatures, boosting resistance to intergranular corrosion. Grade 321H features a higher carbon content, which enhances creep strength and tensile properties when subjected to elevated temperatures. These grades provide good yield and tensile strength, excellent ductility, and toughness, along with reliable mechanical stability under prolonged heat and pressure conditions.

Stainless Steel 321 and 321H ERW Pipes Specification

Specifications : ASTM A312 / ASME SA312

Dimensions : ASTM, ASME and API

Size : 8″ NB to 24″ NB

Wall Thickness : 0.5 to 150mm Thick

Schedules : SCH 5S, 10S,10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS

Length : Single Random, Double Random & Required Length

Form : Round, Square, Rectangular, Hydraulic Pipes

End : Plain end, Bevelled end

Type : Electric Resistance Welded

321 and 321H Stainless Steel ERW Pipes Chemical Composition

Grade	C	Mn	Si	P	S	Cr	N	Ni	Ti
SS 321	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 – 19.00	0.10 max	9.00 – 12.00	5(C+N) – 0.70 max
SS 321H	0.04 – 0.10	2.0 max	1.0 max	0.045 max	0.030 max	17.00 – 19.00	0.10 max	9.00 – 12.00	4(C+N) – 0.70 max

SS 321 and 321H ERW 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 %	95	217

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 321 and 321H ERW Pipes from Laila Pipes and Tubes?

Choosing Stainless Steel 321 and 321H ERW Pipes from Laila 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 321 and 321H ERW Pipes Supplier in Muscat, OMAN

Laila Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 321 and 321H ERW Pipes in Muscat, OMAN, 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.

Equivalent Grades for SS 321 and 321H ERW Pipes

STANDARD	UNS	WERKSTOFF NR.	EN	JIS
SS 321	S32100	1.4541	X6CrNiTi18-10	SUS 321
SS 321H	S32109	1.4878	X12CrNiTi18-9	SUS 321H

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Types of Stainless Steel 321 and 321H ERW Pipes

Are Custom Sizes Available for Stainless Steel 321 and 321H ERW Pipes?

We offer custom sizes for Stainless Steel 321 and 321H ERW Pipes to meet your specific needs. Our dedicated team at Laila Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@lailapipes.com.

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You’ll often find Stainless Steel 321 and 321H ERW Pipes in oil and gas refineries, petrochemical plants, power generation units, and heat exchanger systems. They’re perfect for exhaust manifolds, steam lines, furnace components, and high-temperature process piping. Additionally, these pipes are utilized in chemical processing and industrial fabrication where resistance to oxidation, thermal stress, and corrosion is essential. Their long service life and consistent performance make them ideal for both onshore and offshore industrial applications.