Stainless Steel 321 and 321H Welded Tubing

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Stainless Steel 321 and 321H Welded Tubing Manufacturer, Supplier and Exporter in Tunis, Tunisia

Samia Pipes and Tubes is a reliable manufacturer and supplier of Stainless Steel 321 / 321H Welded Tubing, operating from Tunis, Tunisia. The company produces tubing using advanced welding technology and strict quality standards to ensure consistent strength, dimensional accuracy, and surface finish. Stainless Steel 321 and 321H welded tubing is known for its excellent resistance to intergranular corrosion and strong performance at elevated temperatures. Samia Pipes and Tubes supplies these tubes to industries that demand durability, thermal stability, and long service life in high-temperature and corrosive operating environments.

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4Stainless Steel 321 / 321H Welded Tubing is an austenitic stainless steel stabilized with titanium, which prevents carbide precipitation during high-temperature exposure. Grade 321H has a higher carbon content, providing improved creep resistance and enhanced strength at elevated temperatures. These alloys contain chromium and nickel for corrosion resistance and oxidation stability. The tubing exhibits good tensile and yield strength, excellent ductility, and toughness across a wide temperature range, along with outstanding weldability and resistance to thermal fatigue.

Stainless Steel 321 and 321H Welded Tubing Specification

Welded Tubes Size : 1 / 8″ NB – 24″ NB

Specifications : ASTM A/ASME SA213, A249, A269, A312, A358

Standard : ASTM, ASME and API

Length : Single Random, Double Random & Required Length

Outer Diameter : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB

Thickness : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS

Types : Welded

Form : Round Tubes, Square Tubes, Rectangular Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes

End : Plain End, Beveled End, Treaded

Stainless Steel 321 and 321H Welded Tubing Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Fe
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

Stainless Steel 321 and 321H Welded Tubing Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1457 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

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 Welded Tubing from Samia Pipes and Tubes?

Choose Stainless Steel 321 and 321H Welded Tubing from Samia Pipes and Tubes for exceptional corrosion resistance, superior strength and excellent durability. Ideal for a variety of industrial applications it provides outstanding performance in harsh environments. With precision manufacturing and quality assurance, we ensure reliable and durable tubing solutions.

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Largest Stainless Steel 317 and 317L Welded Tubing Supplier in Tunis, Tunisia

Samia Pipes and Tubes is the largest supplier of Stainless Steel 317 and 317L Welded Tubing in Tunis, Tunisia. Known for its high-quality products. We offer superior corrosion resistance, strength, and durability. Trusted by industries worldwide they provide reliable precision-engineered tubing for various applications and project needs.

Stainless Steel 321 and 321H Welded Tubing Grade Equivalent

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

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Types of Stainless Steel 321 and 321H Welded Tubing

Are Custom Sizes Available for Stainless Steel 321 and 321H Welded Tubing?

Yes, Samia Pipes and Tubes offer large custom designs for Stainless Steel 321 and 321H Welded Tubing. With design, wall thickness and length. Their adjustable options ensure the tubing meets specific application requirements. This flexibility makes it more efficient and reliable for different industries and environments. For more details, contact us at sales@samiapipes.com.

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Stainless Steel 321 / 321H Welded Tubing is widely used in applications involving high temperatures and continuous thermal cycling. Common uses include heat exchangers, furnace components, exhaust systems, expansion joints, and boiler tubing. These grades are also preferred in petrochemical plants, oil and gas processing units, power generation facilities, and aerospace applications. Their ability to maintain mechanical strength and resist oxidation makes them ideal for high-temperature piping systems, pressure vessels, and industrial equipment exposed to severe operating conditions.