Stainless Steel 321 and 321H Seamless Pipes

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

Irfan Pipes and Tubes, based in Istanbul, Turkey, stands out as a top manufacturer and supplier of **Stainless Steel 321 and 321H Seamless Pipes**. They specialize in delivering high-quality piping solutions tailored for demanding industrial needs. Thanks to their state-of-the-art manufacturing facilities and rigorous quality control, the company is known for producing seamless pipes that boast durability, reliability, and excellent corrosion resistance. The Stainless Steel 321 and 321H Seamless Pipes are particularly valued for their outstanding performance in high-temperature and oxidizing conditions. Irfan Pipes and Tubes is committed to timely deliveries and ensuring customer satisfaction, making them a go-to partner for sectors like chemical, petrochemical, power generation, and aerospace.

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These seamless pipes are austenitic stainless steels, typically containing around 17–19% chromium, 9–13% nickel, and are stabilized with titanium to guard against intergranular corrosion. The 321H variant features a higher carbon content, which enhances its strength at elevated temperatures. Mechanically, these pipes showcase impressive tensile strength, remarkable toughness, and stability under thermal stress. The titanium stabilization not only boosts weldability but also enhances resistance to sensitization during heating, while the austenitic structure contributes to their ductility and formability. These characteristics ensure dependable performance in high-temperature, high-pressure, and corrosive settings.

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 Irfan Pipes and Tubes?

Choosing Stainless Steel 321 and 321H Seamless Pipes from Irfan 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, Irfan 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 Istanbul, Turkey

Irfan Pipes and Tubes, one of the largest suppliers of Stainless Steel 321 and 321H Seamless Pipes in Istanbul, Turkey, 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 Irfan Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@irfanpipes.com.

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Stainless Steel 321 and 321H Seamless Pipes find extensive use in industries that demand resistance to high temperatures, oxidation, and corrosion. In chemical and petrochemical facilities, they are utilized for process piping, reactors, and heat exchangers. The power generation sector employs them in boilers, superheaters, and turbine components. Their durability and high-temperature strength make them essential in aerospace and marine applications. Additionally, these pipes are used in furnace components, exhaust systems, and various industrial equipment that face thermal stress. With their blend of mechanical strength and corrosion resistance, they are a reliable choice for many demanding applications.