Stainless Steel 321 and 321H Welded Pipes

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Stainless Steel 321 and 321H Welded Pipes Manufacturer, Supplier and Exporter in Istanbul, Turkey

Irfan Pipes and Tubes, based in Istanbul, Turkey, has earned a solid reputation as a reliable manufacturer and supplier of **Stainless Steel 321 and 321H Welded Pipes**. They provide top-notch piping solutions for industries that demand outstanding corrosion resistance, high-temperature strength, and dependable performance. With state-of-the-art production facilities and rigorous quality control measures, the company ensures that their welded pipes are built to last, even in the toughest environments. These Stainless Steel 321 and 321H Welded Pipes find their place in various sectors, including chemical, petrochemical, power generation, and aerospace. Irfan Pipes and Tubes is committed to timely deliveries and customer satisfaction, making them a trustworthy partner in the industrial landscape.

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Stainless Steel 321 and 321H Welded Pipes are austenitic stainless steels that typically contain around 17–19% chromium, 9–13% nickel, and are stabilized with titanium. The 321H variant has a higher carbon content, which boosts its strength at elevated temperatures. These alloys are known for their excellent resistance to intergranular corrosion, oxidation, and scaling, especially under high-temperature conditions. They also boast high tensile strength, good toughness, and dimensional stability, all while retaining ductility and formability. The titanium stabilization enhances weldability and prevents sensitization during heating, making 321 and 321H Welded Pipes ideal for high-pressure, high-temperature, and corrosive applications.

Stainless Steel 321 and 321H Welded Pipes Specification

Specifications : ASTM A312 / ASME SA312

Outside Diameter : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size available Ex-stock

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

Size : 1/2″ NB – 24″ NB

Type : Welded

Form: Round Pipes, Square Pipes, Rectangular Pipes.

Length : Single Random, Double Random & Required Length

End : Plain End, Beveled End, Treaded

Equivalent Grades for Stainless Steel 321 and 321H Welded Pipes

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

321 and 321H Stainless Steel Welded 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 Welded Pipes 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 321 and 321H Stainless Steel Welded Pipes from Irfan Pipes and Tubes?

Choosing Stainless Steel 321 and 321H Welded Pipes 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 321 and 321H Stainless Steel Welded Pipes Supplier in Istanbul, Turkey

Irfan Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 321 and 321H Welded Pipes in Istanbul, Turkey, 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.

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321 and 321H Stainless Steel Welded Pipe Sizes

NB Sizes	Sch 5	Sch 10	Sch 40	Sch 80	Sch 160
1/8″	✓	✓	✓	✓
1/4″	✓	✓	✓	✓
3/8″	✓	✓	✓	✓
1/2″	✓	✓	✓	✓	✓
3/4″	✓	✓	✓	✓	✓
1″	✓	✓	✓	✓	✓
1 1/4″	✓	✓	✓	✓	✓
1 1/2″	✓	✓	✓	✓	✓
2″	✓	✓	✓	✓	✓
2 1/2″	✓	✓	✓	✓	✓
3″	✓	✓	✓	✓	✓
4″	✓	✓	✓	✓	✓
5″	✓	✓	✓	✓
6″	✓	✓	✓	✓

Physical Properties of SS 321 and 321H Welded Pipes

Grade	Density (kg/m3)	Elastic Modulus (GPA)	Mean Co-eff of Thermal Expansion (µm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100°C (J/kg.K)	Elec Resistivity (nΩ.m)
			0-100°C	0-315°C	0-538°C	At 100°C	At 500°C
321 and 321H	8027	193	16.6	17.2	18.6	16.1	22.2	500	720

Types of 321 and 321H Stainless Steel Welded Pipes

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

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

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In industries that require high-temperature resistance, corrosion protection, and durability, Stainless Steel 321 and 321H Welded Pipes are widely utilized. In chemical and petrochemical plants, they are used for process piping, reactors, and heat exchangers that come into contact with oxidizing or high-temperature media. The power generation sector employs them in boilers, superheaters, and furnace components. In aerospace and marine applications, 321 and 321H Welded Pipes are essential for exhaust systems, high-performance structural components, and thermal equipment. They also find applications in various industrial settings, showcasing their versatility and reliability.