Stainless Steel 317 and 317L EFW Pipes

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Stainless Steel 317 and 317L EFW Pipe Manufacturer, Supplier and Exporter in Houston , USA

Liam Pipes & Tubes is a trusted manufacturer and supplier of high-quality Stainless Steel 317 and 317L Electric-Fusion-Welded (EFW) pipes located in Houston, USA. Known for our metallurgical excellence, we create corrosion-resistant piping solutions designed for a variety of industrial needs. Our 317/317L EFW pipes, welded using precise methods and thoroughly tested for quality, offer outstanding durability, leak-proof performance, and accurate dimensions. We cater to industries such as chemical processing, pharmaceuticals, pulp and paper, and marine, providing tailored solutions that meet ASTM, ASME, and international standards, ensuring clients get reliable, high-integrity piping systems for their essential operations.

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SS 317 (UNS S31700) and 317L (S31703) are austenitic stainless steels containing about 18–20% Cr, 11–15% Ni, and 3–4% Mo. The “L” variant has a carbon content of 0.03% or less, reducing sensitization during welding. Typical mechanical properties include a tensile strength of up to around 515 MPa, yield strength of about 205 MPa, and 35% elongation. These pipes maintain strength at high temperatures, resist pitting, crevice, and sulfuric acid corrosion, and show excellent ductility and formability. The molybdenum content improves resistance to chlorides and reducing acids, making 317/317L EFW pipes ideal for harsh environments and high-temperature applications.

Stainless Steel 317 and 317L 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 317 and 317L EFW Pipes

STANDARD	UNS	WERKSTOFF NR.	EN	JIS
SS 317	S31700	1.4449	–	SUS 317
SS 317L	S31703	1.4438	X2CrNiMo18-15-4	SUS 31

317 and 317L Stainless Steel EFW Pipes Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Fe
SS 317	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	18.00 – 20.00	3.00 – 4.00	11.00 – 15.00	57.845 min
SS 317L	0.035 max	2.0 max	1.0 max	0.045 max	0.030 max	18.00 – 20.00	3.00 – 4.00	11.00 – 15.00	57.89 min

SS 317 and 317L 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 317 and 317L EFW pipes from Liam Pipes and Tubes?

Choosing Stainless Steel 317 and 317L EFW Pipes from Liam 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 317 and 317L EFW pipes Supplier in Houston , USA

Liam Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 317 and 317L EFW Pipes in Houston , USA, 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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317 and 317L 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	…	…	…	…

Physical Properties of SS 317 and 317L EFW Pipes

Physical Properties (Room Temperature)
Specific Heat (0-100°C)	500	J.kg-1.°K-1
Thermal Conductivity	14.6	W.m -1.°K-1
Thermal Expansion	16.5	mm/m/°C
Modulus Elasticity	193	GPa
Electrical Resistivity	7.4	μohm/cm
Density	7.99	g/cm

Types of Stainless Steel 317 and 317L EFW Pipes

Are Custom Sizes Available for Stainless Steel 317 and 317L EFW Pipes?

We offer custom sizes for Stainless Steel 317 and 317L EFW Pipes to meet your specific needs. Our dedicated team at Liam Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@liampipes.us.

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SS 317/317L EFW pipes are suitable for demanding environments like chemical processing, pulp and paper, pharmaceuticals, and offshore/marine industries. Their high molybdenum content gives them excellent resistance against pitting and crevice corrosion in chloride-rich and acidic conditions. They are often used in heat exchangers, sulfuric and phosphoric acid service, flue-gas desulfurization units, scrubbers, and chemical reactors. Additionally, they are effective in desalination plants and paper mills. The low-carbon 317L variant is preferred for welded assemblies to prevent carbide precipitation, making it suitable for heavy-duty, high-temperature, and corrosive service conditions.