Stainless Steel 321 and 321H EFW Pipes

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Stainless Steel 321 and 321H EFW Pipes Manufacturer, Supplier and Exporter in Safat, Kuwait

Located in the industrial hub of Safat, Kuwait, Lathief Pipes has built a reputation for providing high-grade industrial solutions, with a special focus on their Stainless Steel 321/321H EFW Pipes. We understand that in demanding sectors, reliability is non-negotiable. That’s why we are committed to supplying pipes that offer exceptional performance and longevity, ensuring your projects are built on a foundation of trusted quality and material integrity, directly supporting the growth and infrastructure of our region.

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The strength of these pipes comes from their specific composition, which includes titanium for enhanced stability. This addition allows the 321/321H grades to perform exceptionally well under high temperatures, resisting corrosion and maintaining their structural integrity where other materials might fail. They are engineered to meet rigorous mechanical demands, offering a robust solution that stands up to stress and heat, making them a practical and dependable choice for challenging environments.

Stainless Steel 321 and 321H EFW Pipes Specification

Specification	ASTM A358 / ASME SA358
Specification	A / SA358 CLASS 1, A / SA358 CLASS 2, A / SA358 CLASS 3, A / SA358 CLASS 4, A / SA358 CLASS 5
Grades	304, 304L, 304H, 309S, 310S, 316, 316L, 316H, 317L, 321, 321H, 347, 347H, 904L ETC.
Type	EFW, ELECTRIC FUSION WELDED
Outer Diameter Size	Electric Fusion Welded / ERW- 8″ NB To 110″ NB (Nominal Bore Size)
Wall Thickness	Schedule 10 To Schedule 160 (3 mm to 100 mm Thickness)
Length	01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size.
Ends	Plain Ends / Beveled Ends
Delivery Conditions	As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered
Coating	Electropolish, Mechanical Polish, Satin Finish, Passivated
Dimension	All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME
Value Added Services	Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment
Packaging	Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
Material Test Certificate	Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC

Equivalent Grades for Stainless Steel 321 and 321H EFW Pipes

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

321 and 321H Stainless Steel EFW 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 EFW Pipes Mechanical Properties

Tensile Strength	Yield Strength (0.2%Offset)	Elongation	Hardness
			Rockwell B (HR B) max	Brinell (HB) max
Psi – 75000, MPa – 515	Psi – 30000, MPa – 205	35 %	95	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 Stainless Steel 321 and 321H EFW pipes from Lathief Pipes and Tubes?

Choosing Stainless Steel 321 and 321H EFW Pipes from Lathief Pipes and Tubes 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 Stainless Steel 321 and 321H EFW pipes Supplier in Safat, Kuwait

Lathief Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 321 and 321H EFW Pipes in Safat, Kuwait, 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 EFW Pipe Sizes

NPS Designator	Outside Diameter		Nominal Wall Thickness
	in.	mm	Schedule 5SA		Schedule 10SA		Schedule 40SA		Schedule 80SA
	in.	mm	in.	mm	in.	mm	in.	mm	in.	mm
8	8.625	219.08	0.109	2.77	0.148	3.76	0.322	8.18	0.500	12.70
10	10.750	273.05	0.134	3.40	0.165	4.19	0.365	9.27	0.500B	12.70B
12	12.750	323.85	0.156	3.96	0.180	4.57	0.375B	9.52B	0.500B	12.70B
14	14.000	355.60	0.156	3.96	0.188B	4.78B	…	…	…	…
16	16.000	406.40	0.165	4.19	0.188B	4.78B	…	…	…	…
18	18.000	457.20	0.165	4.19	0.188B	4.78B	…	…	…	…
20	20.000	508.00	0.188	4.78	0.188B	4.78B	…	…	…	…
22	22.000	558.80	0.188	4.78	0.218B	5.54B	…	…	…	…
24	24.000	609.60	0.218	5.54	0.250	6.35	…	…	…	…
30	30.000	762.00	0.250	6.35	0.312	7.92	…	…	…	…

Types of Stainless Steel 321 and 321H EFW Pipes

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

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

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You’ll find Stainless Steel 321 and 321H EFW Pipes widely utilized in boilers, heat exchangers, pressure vessels, and high-temperature piping systems. They’re also essential in petrochemical and chemical plants, oil & gas refineries, and power generation facilities that demand durable, corrosion-resistant, and heat-resistant piping solutions. Plus, they’re perfect for furnace components, industrial ovens, and high-temperature process piping where long-lasting strength and reliability are crucial. With their blend of mechanical strength, high-temperature performance, and corrosion resistance, these pipes are a go-to choice for many industries.