Stainless Steel 321 and 321H Seamless Pipes

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Stainless Steel 321 and 321H Seamless Pipes Manufacturer, Supplier and Exporter in Canberra, Australia

David Pipes and Tubes is a reputable manufacturer and supplier located in Canberra, Australia, focusing on top-notch Stainless Steel 347 and 347H ERW Pipes. These pipes are crafted using cutting-edge Electric Resistance Welding (ERW) technology, which guarantees precision, strength, and consistent performance. Renowned for their outstanding corrosion resistance, high-temperature stability, and durability, the Stainless Steel 347 and 347H ERW Pipes from David Pipes and Tubes are perfect for critical applications in industries like chemical processing, power generation, aerospace, and marine. The company’s dedication to quality and precision ensures that their piping solutions meet international standards and are reliable.

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The composition of Stainless Steel 347 and 347H ERW Pipes primarily includes iron, chromium (17–19%), nickel (9–13%), and niobium, which helps stabilize the alloy and prevents carbide precipitation. The 347H variant has a higher carbon content, providing improved high-temperature strength and creep resistance. These pipes are known for their excellent resistance to intergranular corrosion, oxidation, and scaling, with tensile strength ranging from 515–700 MPa. Thanks to the ERW manufacturing process, they boast uniform wall thickness, precise dimensions, and high-quality welds, making them suitable for demanding industrial applications where reliability and durability are essential.

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 David Pipes and Tubes?

Choosing Stainless Steel 321 and 321H Seamless Pipes from David 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, David 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 Canberra, Australia

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

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Stainless Steel 347 and 347H ERW Pipes are extensively utilized in industries that require exceptional corrosion resistance and high-temperature performance. They find common applications in chemical and petrochemical plants, refineries, heat exchangers, and boiler systems. Additionally, these pipes are well-suited for aerospace, marine, and power generation applications due to their ability to maintain structural integrity even under extreme conditions. With their impressive strength, thermal stability, and excellent corrosion resistance, Stainless Steel 347 and 347H ERW Pipes deliver reliable performance and a long service life in critical industrial operations.