Stainless Steel 321 and 321H ERW Pipes

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Stainless Steel 321 and 321H ERW Pipes Manufacturer, Supplier and Exporter in Kolkata, India

Ojas Pipes and Tubes, a reputable manufacturer and supplier based in Kolkata, India, specializes in Stainless Steel 321 and 321H ERW Pipes. These pipes are celebrated for their durability, precision, and outstanding performance in high-temperature environments. With titanium stabilization, they boast excellent resistance to intergranular corrosion and scaling, making them a reliable choice for various industrial applications. Ojas Pipes and Tubes is dedicated to ensuring that all products adhere to international quality standards and meet specific client requirements, providing timely solutions for industries like petrochemical, power, and heat processing. With a strong emphasis on quality, Ojas is committed to excellence, innovation, and building lasting relationships with customers.

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Stainless Steel 321 and 321H ERW Pipes are made up of 17–19% chromium, 9–12% nickel, and are stabilized with titanium (approximately five times the carbon content), with 321H containing about 0.04–0.10% carbon. They deliver a tensile strength of around 515 MPa, yield strength of about 205 MPa, and an elongation of roughly 40%. The titanium stabilization helps prevent chromium carbide precipitation, boosting corrosion resistance, especially post-welding. While 321 is great for general high-temperature applications, 321H offers improved creep and stress rupture strength, making it ideal for extended exposure to high temperatures, ensuring mechanical integrity and thermal stability.

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 Ojas Pipes and Tubes?

Choosing Stainless Steel 321 and 321H ERW Pipes from Ojas 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 Kolkata, India

Ojas Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 321 and 321H ERW Pipes in Kolkata, India, 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 Ojas Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@ojaspipesandtubes.co.in.

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Stainless Steel 321 and 321H ERW Pipes Uses

Stainless Steel 321 and 321H ERW Pipes find extensive use in sectors like petrochemical, oil & gas, chemical processing, power generation, and aerospace. They are perfect for applications such as heat exchangers, exhaust manifolds, furnace components, thermal oxidizers, and high-temperature chemical vessels. Their excellent weldability and resistance to intergranular corrosion make them suitable for systems that experience cyclic heating. Notably, 321H’s higher carbon content enhances its performance in situations where prolonged exposure to high temperatures is necessary, ensuring reliability and durability in demanding environments.