Stainless Steel 321 and 321H Seamless Pipes

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Stainless Steel 321 and 321H Seamless Pipes Manufacturer, Supplier and Exporter in Kinshasa, Thailand

Welcome to Wissa Pipes, your trusted industrial partner in the heart of Kinshasa, Congo. For years, we’ve been the cornerstone for industries requiring uncompromising quality and reliability. We take immense pride in specializing in the supply of Stainless Steel 321/321H seamless pipes, bringing world-class materials directly to our local market. As a dedicated manufacturer and supplier, we ensure you have direct access to superior products that power the nation’s key sectors, backed by our commitment to exceptional service and local expertise.

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The strength of these pipes begins with their excellent composition. The grade is stabilized with titanium, which provides outstanding resistance against corrosion, particularly in harsh environments. This special makeup allows the pipes to maintain their integrity and strength even when exposed to high temperatures, making them incredibly durable. You can count on them for their consistent mechanical performance, a feature that sets them apart from standard stainless steels and gives your projects a distinct advantage in safety and longevity.

Stainless Steel 321 and 321H 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 321 and 321H Seamless Pipes

STANDARD	UNS	WERKSTOFF NR.
SS 321	S32100	1.4541
SS 321H	S32109	1.4878

321 and 321H Stainless Steel Seamless Pipes Chemical Composition

SS	321	321H
Ni	09 – 12	09 – 12
N	0.10	0.10
Cr	17 – 19	17 – 19
C	0.08 max	0.04 – 0.08
Si	1 max	0.75 max
Mn	2 max	2 max
P	0.040 max	0.045 max
S	0.030 max	0.03 max
TI	4(C+N)	0.70 max

SS 321 and 321H Seamless Pipes Mechanical Properties

Grade	321	321H
Tensile Strength (MPa) min	515	515
Yield Strength 0.2% Proof (MPa) min	205	205
Elongation (% in 50mm) min	40	40
Hardness
Rockwell B (HR B) max	95	95
Brinell (HB) max	217	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 321 and 321H Stainless Steel Seamless Pipes from Wissa Pipes and Tubes?

Choosing Stainless Steel 321 and 321H Seamless Pipes from Wissa Pipes and Tubes guarantees exceptional corrosion resistance and high temperature performance. Their pipes are manufactured to exacting standards, ensuring reliability and durability for complex applications. With a focus on customer service, Wissa offers customized solutions and technical support. In addition, the rugged design reduces leakage, making it reliable for a variety of applications.

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Largest 321 and 321H Stainless Steel Seamless Pipes Supplier in Kinshasa, Thailand

Wissa Pipes and Tubes, one of the largest suppliers of Stainless Steel 321 and 321H Seamless Pipes in Kinshasa, Thailand, 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 321 and 321H Seamless Pipes

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
Grade	UNS No	BS	En	No	Name	Swedish SS	Japanese JIS
321	S32100	321S31	58B, 58C	1.4541	X6CrNiTi18-10	2337	SUS 321
321H	S32109	321S51	–	1.4878	X6CrNiTi18-10	–	SUS 321H

Physical Properties of SS 321 and 321H Seamless Pipes

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (m/m/0C)			Thermal Conductivity (W/m.K)		Specific Heat 0-1000C (J/kg.K)	Electrical Resistivity (n.m)
			0-100°C	0-315°C	0-538°C	at 100°C	at 500°C
321	8027	193	16.6	17.2	18.6	16.1	22.2	500	720

Types of 321 and 321H Stainless Steel Seamless Pipes

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

Yes, we offer custom sizes for Stainless Steel 321 and 321H Seamless Pipes to meet your specific requirements. Our team at Wissa Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@wissapipes.com.

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This type of tubing is commonly found in the chemical and petrochemical industries, power generation plants, and refineries, where heat and corrosion resistance are essential. It’s used in boilers, superheaters, heat exchangers, and furnace components. In the aerospace and marine sectors, it serves in exhaust systems and high-heat structural components. Additionally, the pharmaceutical, food processing, and instrumentation industries depend on this tubing for its hygienic and durable performance. Its remarkable combination of strength, stability, and resistance to heat and corrosion guarantees reliable operation in demanding industrial environments.