ASTM A269 TP316L Stainless Steel Seamless Tube For Heat Exchanger

ASTM A269 TP316L Stainless Steel Seamless Tube For Heat Exchanger

ASTM A269 is a specification by the American Society for Testing and Materials for seamless and welded austenitic stainless steel tubing used in corrosion-resistant and high-temperature service. The TP316L grade refers to a low-carbon variant of Type 316 stainless steel, optimized for welding and harsh environments.

Superior corrosion resistance in acidic/chloride environments (vs. 304/316).Enhanced weldability due to low carbon content.High strength and durability at elevated temperatures.Smooth, seamless structure ideal for high-pressure applications.

Chemical Composition:

• Chromium (Cr): 16–18% (provides oxidation/corrosion resistance).

• Nickel (Ni): 10–14% (stabilizes austenitic structure, enhancing ductility and toughness).

• Molybdenum (Mo): 2–3% (improves resistance to pitting/crevice corrosion in chloride environments).

• Carbon (C): ≤0.03% (low carbon minimizes carbide precipitation during welding).

• Other elements: Manganese (≤2%), Silicon (≤0.75%), Phosphorus (≤0.045%), Sulfur (≤0.03%), Iron (balance).

Mechanical Properties:

• Tensile Strength: ≥70 ksi (485 MPa).

• Yield Strength: ≥25 ksi (170 MPa).

• Elongation: ≥40% (in 2 inches).

• Hardness: ≤90 HRB (Rockwell B) or ≤200 HB (Brinell).

• Density: 8.0 g/cm³.

• Melting Point: ~1375–1400°C.

Applications:

• Pharmaceutical/Biotech: Sterile tubing for process systems (autoclave compatibility).

• Chemical Processing: Handling acids, solvents, and corrosive chemicals.

• Oil & Gas: Offshore platforms (resists seawater/sour gas).

• Food & Beverage: Hygienic transfer lines (meets FDA/USDA standards).

• Marine: Heat exchangers, desalination plants (saltwater resistance).

• Medical Devices: Implants/surgical tools (biocompatibility, sterilizability).

• Nuclear: Coolant systems (radiation/thermal fatigue resistance).

• Heat Exchangers: High-temperature condensers and boilers.

Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories,  the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always.   The factories already got certificates like : ABS, LR, DNV-GL, BV, KR, CCS, ASME, ISO 9001, ISO14001, ISO18001, ect.

Our factories main products as below : 
Factory 1th: Stainless steel seamless tube, Duplex steel seamless tube, Super duplex steel seamless tube, Nickel alloy steel seamless tube;

Factory 2th: Carbon steel seamless tube, Alloy steel seamless tube; Enhanced Heat Tranfer Tube, low fin tube ,U bending workshop;
Factory 3th: High frequency welding fin tube(HFW fin tube, Solid Fin tube, Studded Tube, Serrated Fin tube, Longitudinal welding fin tube), Wound fin tube(L type fin tube, LL type fin tube,  KL type fin tube), Embedded G type fin tube , Extruded fin tube,  low fin tube, U bend & 180deg. Return;

Yuhong Holding Group also has gained rich experience for project package( products contain:Pipes, Fittings, Flanges, heat exchanger, furnace, fired heater, air cooler, boiler) , YUHONG brand has marked its global presence in more than 85 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand, Singapore, Malasyia, Indonesia, Thailand, Vietnam, Ukraine, Turkey,Sauid Arabia, Qatar, U.A.E,Israel,India, UK, France, Italy, Gernmany, Poland, Spain,... We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers as stockists around the world.