What Is Stainless Steel 304L Seamless Pipes & Tubes
Stainless Steel 304L seamless pipes and tubes are high-performance components made from a low-carbon version of 304 stainless steel. This alloy offers superior corrosion resistance and enhanced weldability, especially in chloride-rich or acidic environments. Its low carbon content prevents intergranular corrosion during welding, making it a preferred choice in industries such as chemical processing, oil & gas, pharmaceuticals, and food production.
The ASTM A312 TP304L seamless pipe is produced without welds, giving it uniform strength and the ability to withstand high pressure. These pipes are ideal for fluid transportation, structural systems, and high-temperature service. On the other hand, SS 304L seamless tubing—typically made to ASTM A213 standards—is used in heat exchangers, instrumentation lines, and boiler applications where precision, smooth finishes, and thinner wall thicknesses are required.
At USA Piping Solution, we supply both pipes and tubes with full traceability, test certifications, and compliance with global codes. Whether you need 304L seamless pipe for structural use or 304L seamless tubing for critical fluid systems, our products meet the highest standards of quality and reliability.

ASTM A312 TP304L Seamless Pipe and A213 Tubes Specifications
Stainless Steel 304L Seamless Pipes and Tubes are low-carbon, corrosion-resistant products manufactured to ASTM A312 (pipes) and ASTM A213 (tubes) standards. These components offer excellent strength, weldability, and dimensional accuracy, making them suitable for high-temperature, pressure, and sanitary applications. Available in multiple schedules, sizes, and finishes, they are widely used across oil & gas, petrochemical, pharmaceutical, and food processing industries.
Specifications Table – SS 304L Seamless Pipes & Tubes
Specification |
ASTM A312 TP304L Pipe |
ASTM A213 TP304L Tube |
---|---|---|
Material Grade |
Stainless Steel 304L |
Stainless Steel 304L |
Manufacturing Process |
Seamless (Hot / Cold Finished) |
Seamless (Cold Drawn) |
Standard |
ASTM A312 / ASME SA312 |
ASTM A213 / ASME SA213 |
Outer Diameter |
1/8” NB to 24” NB |
6mm to 101.6mm OD |
Wall Thickness |
SCH 10 to SCH 160 / XXS |
0.5mm to 5mm |
Length |
Single Random, Double Random, Cut Length |
Upto 12 meters or as required |
Surface Finish |
Annealed, Pickled, Polished |
Bright Annealed, Polished |
Ends |
Plain End / Beveled / Threaded |
Plain End / U-Bent / Custom Ends |
Testing |
Hydro Test, PMI, NDT, Mechanical |
Hydro, Eddy Current, Hardness, PMI |
Certifications |
EN 10204 3.1 / 3.2, ISO, PED, IBR |
EN 10204 3.1 / 3.2, ISO, PED, IBR |
Applications |
Pressure piping, structural, process plants |
Heat exchangers, instrumentation, boilers |
Stainless Steel 304L Seamless Pipe – Sizes, Features & Price
Stainless Steel 304L seamless pipes are trusted in demanding industries for their superior corrosion resistance, clean internal finish, and excellent weldability. These pipes are available in a wide range of diameters and wall thicknesses to support various applications, from high-pressure systems to structural frameworks. The seamless design enhances strength and ensures leak-proof performance, even in aggressive environments.
Below is a general reference table outlining the standard size range and available options for SS 304L seamless pipes and tubes:
Size Chart – SS 304L Seamless Pipes & Tubes
Parameter |
304L Seamless Pipe |
304L Seamless Tube |
---|---|---|
Outer Diameter (OD) |
1/8” NB to 24” NB |
6 mm to 101.6 mm OD |
Wall Thickness |
SCH 10 to SCH 160 / XXS |
0.5 mm to 5 mm |
Length |
6m / 12m / Custom Cut Length |
Up to 12 meters |
Surface Finish |
Annealed, Pickled, Polished |
Bright Annealed, Polished |
Form |
Round |
Round / U-bent (on request) |
Standards |
ASTM A312 / ASME SA312 |
ASTM A213 / ASME SA213 |
End Types |
Plain / Beveled / Threaded |
Plain / Custom Ends |
Price Range(Indicative) |
USD $2.50 – $4.50/kg (varies by size) |
USD $3.00 – $5.00/kg (varies by OD & wall) |
What sets SS 304L seamless tubing apart is its low carbon content, which enhances weldability without compromising corrosion resistance. The tubes are cold drawn or cold finished to maintain tight dimensional control and surface smoothness, making them ideal for sensitive applications in food processing, pharmaceuticals, and power generation. Our 304L stainless steel seamless tube offerings are available in both metric and imperial dimensions, with customized cut lengths on request.
Note : Pricing for 304L stainless steel seamless tubes and pipes depends on order size, schedule, finish, and testing requirements. Contact us for real-time quotes and technical assistance.
Stainless Steel 304L Seamless Tube – Grades, Finish & Dimensions
Stainless Steel 304L seamless tubes are manufactured using a low-carbon austenitic stainless steel alloy known for its excellent corrosion resistance, clean surface finish, and superior weldability. As a trusted grade among 304L seamless tube manufacturers, this variant is widely used in applications requiring high dimensional precision and hygienic properties—such as in pharmaceutical systems, food-grade piping, and heat exchangers.
Our SS 304L seamless tubing is available in both metric and imperial sizes, with outer diameters ranging from 6 mm to 101.6 mm and wall thicknesses from 0.5 mm to 5 mm. These tubes are finished to industry standards including bright annealed, pickled, or mechanically polished surfaces to meet critical industry and aesthetic requirements. All tubes are manufactured as per ASTM A213, while matching pipe grades conform to ASTM A312 TP304L seamless pipe specifications.
At USA Piping Solution, we serve as leading stainless steel 304L pipe suppliers, offering full traceability, mill test certification, and export documentation. Whether you require seamless tubing for fluid handling, structural stability, or thermal conductivity, our 304L stainless steel seamless tubes and pipes ensure long-term reliability and compliance. We also provide competitive 304L stainless steel pipe prices based on size, finish, and quantity.
Pipes vs Tubes – Technical Differences in 304L Grade
Though often used interchangeably, 304L stainless steel seamless pipes and tubes differ in form, function, and dimensional standards. Both are made from the same corrosion-resistant 304L alloy, but their specifications vary based on application requirements.
Pipes are generally used for transporting fluids and gases. They are measured by nominal bore (NB) and schedule (wall thickness), conforming to pressure-bearing standards such as ASTM A312 TP304L. Seamless 304L pipes are preferred in structural frameworks, chemical pipelines, and oil & gas transmission due to their uniform strength and weldability.
Tubes, on the other hand, are used in precision applications like heat exchangers, instrumentation, and process equipment. They are defined by exact outer diameter (OD) and wall thickness, offering tighter tolerances and smoother surface finishes. Tubes are typically manufactured to ASTM A213 specifications, and their dimensional accuracy makes them ideal for pharmaceutical, nuclear, and sanitary installations.
At USA Piping Solution, we supply both products with full compliance to global codes, ensuring that whether you need SS 304L seamless pipes or 304L seamless tubes, you're receiving fit-for-purpose material backed by testing, traceability, and technical expertise.
Related Product Of Stainless Steel
Industries & Applications
Stainless Steel 304L seamless pipes and tubes are essential across industries that require clean, corrosion-resistant, and pressure-rated components. Their high strength, weldability, and ability to withstand aggressive media make them suitable for both structural and fluid transport applications in critical environments.
Key Industries Served:
- Oil & Gas Industry: For fluid transmission lines, offshore piping, and refinery systems
- Pharmaceuticals: Used in sterile process lines, cleaning systems, and drug production units
- Food & Beverage: Ideal for sanitary piping, brewing systems, and liquid handling
- Power Generation: Deployed in boiler tubes, heat recovery systems, and high-temp lines
- Chemical Processing: For handling acids, solvents, and corrosive chemical flows
- Water Treatment: Used in desalination plants, RO systems, and distribution pipelines
- Pulp & Paper: For high-pressure steam and chemical slurry conveyance
- Construction & Infrastructure: As structural supports and in load-bearing systems
Why Choose USA Piping Solution for 304L Seamless Pipes & Tubes
As leading stainless steel 304L pipe suppliers and trusted 304L seamless tube manufacturers, USA Piping Solution is known for delivering consistent quality, timely service, and global export capabilities. Our products are manufactured in compliance with international standards like ASTM A312 and A213, and come with full traceability, third-party inspection reports, and mill test certificates. Whether you need pipes for structural frameworks or tubes for precision fluid systems, we provide materials that meet strict industry specifications.
Backed by ISO, PED, and IBR certifications, we maintain ready stock in various sizes, schedules, and surface finishes. Our technical support team works closely with clients to provide tailored solutions, custom cut lengths, and packaging for offshore and industrial projects. With competitive pricing, global logistics support, and 24/7 assistance, USA Piping Solution ensures you receive the best-in-class 304L seamless pipes and tubes with zero compromise on quality or service.
FAQs About SS 304L Pipes and Tubes
What is the difference between SS 304 and SS 304L seamless pipes?
SS 304L has a lower carbon content than SS 304, which improves weldability and minimizes the risk of carbide precipitation during welding. This makes SS 304L seamless pipes better suited for high-temperature and corrosive environments.
Are SS 304L seamless tubes suitable for high-pressure applications?
Yes, 304L seamless tubes are manufactured without any welded seams, giving them superior pressure resistance and mechanical strength. They are commonly used in boilers, heat exchangers, and hydraulic systems.
What standards govern the manufacturing of 304L pipes and tubes?
304L seamless pipes are typically produced under ASTM A312, while seamless tubes conform to ASTM A213 standards. These specifications cover dimensions, mechanical properties, and testing requirements.
What surface finishes are available for SS 304L pipes and tubes?
Common finishes include annealed, pickled, polished, and bright annealed. The choice depends on application requirements such as hygiene, corrosion resistance, and appearance.
What is the price of 304L stainless steel seamless pipe or tube?
Prices vary depending on size, wall thickness, surface finish, and order quantity. For the most accurate 304L stainless steel pipe price, it’s best to request a quote based on project specifications.
Do you provide certifications with your 304L seamless pipes and tubes?
Yes, all materials come with Mill Test Certificates (MTC), third-party inspection reports, and full traceability documentation as per EN 10204 3.1 / 3.2.
Considering Other Stainless Steel Options?
While Stainless Steel 304 is incredibly versatile, USA Piping Solutions also offers other stainless grades that might be a better fit for certain specific conditions:

ASTM A213 TP304L Stainless Steel Tubes
This is specifically the low-carbon (L-grade) version of 304 tubing, often required by the A213 standard for boiler/heat exchanger use, particularly important when welding is involved to prevent sensitization and maintain corrosion resistance.
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ASTM A269 TP304 Stainless Steel Tubing
This standard covers seamless and welded tubing for general purposes. It might be used for instrumentation lines, decorative work, or less critical fluid handling compared to A312 pipe or A213 tubes.
Ready to Source Your Stainless Steel 304L Seamless Pipe & Tube?
Are you looking for high-quality Stainless Steel 304L Seamless Pipe & Tube for your next industrial, architectural, structural, or sanitary project? When you need proven reliability, excellent corrosion resistance, and versatile performance, USA Piping Solutions is your trusted supply partner.
We provide precision-engineered SS 304L Seamless Pipes and 304L Stainless Steel Tubing that consistently meet demanding ASTM and ASME specifications. Thanks to our extensive inventory, efficient global delivery network, and commitment to providing full mill test certifications, we are a preferred choice for manufacturers, EPC contractors, fabricators, and distributors across the country and around the world. Get the ASTM A312 TP304L Pipe and tubing you need, delivered reliably.
Request a Quote Today or connect with our stainless steel specialists. We're ready to provide tailored solutions and competitive pricing for your specific project requirements!
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