ASTM A213 316/316L Polished Seamless Tube Bright Annealed 1/2" For Heat Exchanger

Product Name: Polished Seamless Tube for Heat Exchanger

Material: Stainless Steel 316 / 316L

Standard: ASTM A213 / ASME SA213, EN 10216-5

Outer Diameter (OD): 1/4" - 2"

Surface Finish: Polished (Internal & External)

Length: Fixed Length (6m) or Cut-to-Length

SMLSCO seamless tubes undergo precision multi pass inner and outer wall polishing treatment to ensure high surface smoothness, no scratches, effectively reducing fluid resistance and preventing scaling, which is crucial for heat exchange efficiency. Subsequently, a bright annealing process was employed to perform heat treatment under controlled atmosphere, eliminating cold working stress and restoring the excellent mechanical properties of the material. This process can form a bright oxide free surface, ensuring the highest cleanliness and corrosion resistance of the pipe, providing reliable guarantee for high-end applications.

SMLSCO precision seamless tube is a core component designed specifically for various heat exchanger and condenser systems such as shell and tube, coil, etc. Its stable heat exchange performance, excellent high pressure resistance, and high reliability under thermal cycling ensure efficient energy transfer. Smooth inner and outer surfaces can minimize fluid adhesion and scaling, extending equipment maintenance cycles. The product is widely used in the fields of petrochemicals, energy and power, food processing, and HVAC, providing solid support for the stable operation of key systems.

SMLSCO implements a rigorous three-level quality inspection system to ensure that every pipe delivered meets the highest standards. Starting from high-quality raw materials from certified suppliers, through online monitoring of dimensions and surfaces during the production process, and conducting 100% comprehensive testing of finished products before shipment. All testing data and product photos will be archived for complete traceability. We also support customers to designate third-party organizations such as SGS and TÜV for inspection, providing completely transparent and reliable quality assurance.

• We have a standing inventory of over 2000 tons, ensuring that seamless pipes of regular size can be delivered quickly within 2 weeks, effectively shortening your project cycle.
• Based on 18 years of industry experience and a bulk procurement model, our products are highly competitive in price while ensuring high quality.
• The product complies with strict international standards and has passed authoritative certifications such as ISO and PED, providing you with stable and reliable pipeline system solutions.

316/316L stainless steel exhibits excellent corrosion resistance due to the addition of molybdenum, especially in environments containing chlorides, effectively resisting pitting and crevice corrosion. Its excellent high-temperature strength and creep resistance make it an ideal choice for high-temperature and high-pressure working conditions. As a low-carbon version, 316L can maintain excellent intergranular corrosion resistance without annealing after welding, ensuring the long-term stability and safety of the equipment in the welding area, fully meeting the requirements of harsh industrial environments.

To ensure that the surface of the precision polishing tube remains intact during transportation, we use multiple protective packaging. Each tube is independently wrapped with bubble wrap, and the ends are sealed with protective caps to prevent collisions and impurities from entering. Then neatly code the tubes and place them in sturdy plywood wooden boxes or pallets, and securely tie them together. This meticulous packaging method not only provides excellent physical protection for the product, but also reflects our high responsibility for product quality and customer experience.